The 307 has the same bore as a 283, 3.875”, and a 3.25” stroke, same as a 327. 307 block is essentially a medium journal 283 block. And for the record, 302, 327, and 350 are all 4” bore blocks.

@danielfigueroa4725

Жыл бұрын

You beat me to it a 327 is dies not have the same bore and stroke double hump heads with a 64cc chamber would lower compression on a 283

@shootermcgavin2819

Жыл бұрын

@@danielfigueroa4725 Yes. If you want to stay old school and have great compression, find Power Pack heads

327 is far from square, it’s an over square engine with a 4.00” bore and 3.25” stroke.

Mike, I am in my early 60's and have been working in Machine Shops since in High School then in the early 70's started up our own shop and have been building High Performance, Precision Chevrolet Engines almost exclusively since we first opened our doors. Yes I have built the occasional Pontiac, Olds, Buick Engines as well and a few Ford's and Chrysler's over the years but we specialize in Chevrolet and even a bit further Big Block Chevrolet Engines more than anything else but we still build a ton of SBC every year for everyone from hobby stock/street stock racers to Blower Engines for Pro Street Cars...we get alot of NASCAR style SBC work also for sprint and modified racers as well as Drag Racers. Now the very first engine I was able to build and blueprint was my Grandfather's 283 out of his 3/4 ton Chevy Pickup he and my Grandmother used for their over the cab Excell Pickup Camper and to pull their boat all over the country with after he retired I built this engine in shop class in Sr. High and that in fact is how I got my first job with the local machine shop. The owner was a great old guy who he and his wife were never able to have any children of their own and they kinda adopted all the local kids who raced as their own, anyway long story short he took time out of his day to come to my school and help me everyday M-F and I worked at his shop after school and weekends so it was an even trade in his mind but I learned so much from him....I know who got the better of that deal.....anyhow we built this 283 using parts from other Chevy Engines available at the time and built a high winding Torque making Monster that looked and sounded like a lamb instead of the wolf in sheep's clothing it really was. I won't go into detail because this is already too long but I want to add that I heard from my Older Brother who still lives where we grew up and that same pickup, though now almost completely restored is still running like a top and the man my Grandfather sold it to, his son now owns it and that little 283 I built in High School has NEVER BEEN OPENED SINCE I put it back in that Truck....it still has its original oil bath air cleaner if you can believe that ! My brother took lots of photos of it for me and aside from a new paint job to the entire Engine and some re-furbished year correct parts , new exhaust manifolds, remanufactured old school generator etc it's exactly as it was the day we dropped it in. The moral of all this is simple....with the proper person building the engine and faithful maintenance there really is no telling how long one of those Engines can run....I know my Grandparents put thousands of miles on it going from state to state, fishing hole to fishing hole and I can't count the trips from the Central Plains to the West Coast to visit my Grandparents brothers and sisters that Old Chevy Truck made after we re built the Engine.....oh and by the way.....we only bored the block for bigger, newer pistons....and debated a long time on even doing that because the Block didn't need bored when we pulled it apart and checked each cylinder. The material that block was made out of and the crank and rods and pistons were for that day made from the quality material, that sadly nowdays will cost you a pretty penny. The high Nickle block, the steel crank were made from the best steel and by people who really cared about what they did. That is what is missing in today's world....quality and pride in ones work no matter what you do. Do it to the best of your ability and keep striving to improve.....you would be amazed at what can be done. I know I am. The Pictures of that little 283 are now bigger and framed hanging on my office walls and walls up around the front counter in the shop....I couldn't have a better recommendation than that. I still even as late as yesterday get young guys asking me why those pictures of that little Small Block are hanging with all the photos of people's cars with Engines We built in them that's won so much....I just tell them the short version of that engines story and if they know anything, they get it right away why that little 283 is so important to me. P.S. sorry this was so long a comment my intention was just to show how really important the little 283 really was to so many.

@cammontreuil7509

2 жыл бұрын

I call bull sh!t on that 283 you built. You never put hard seats in it in highschool.

@cammontreuil7509

2 жыл бұрын

Compared to Ford or Dodge Chevy never built anything " Precision ".

@IRONHORSE427RACING

2 жыл бұрын

@@cammontreuil7509 Really ? Check into the History of Zora Duntov before you spout things you clearly know NOTHING about.

@cammontreuil7509

2 жыл бұрын

@@IRONHORSE427RACING Dunt and his presision fuel injection on early Corvette ? Everyone knows it was junk. Where was Dunt during the 60's in nascar ? Hiding in basement with Joe Biden. Why did the Camaro do well in racing ? Because someone cheated and acid dipped the bodies of the race cars. And in 69 all the Boss 302's wrecked, but not the following year. Piece by piece it can be taken apart why a small Chevy is short on presision, not so with Dodge and Ford. People like Chevy because they are cheap not because they have presision engineering.

@maggs131

2 жыл бұрын

@@cammontreuil7509 sorry champ I'll take lower cost and superior durability over precision any day with a motor. You are just angry because you know the chevy guys are right

I remember my dads 283 had a camshaft he bought from Chevrolet that was stock solid lift cam in a 61 corvette with dual carter 4 barrel carbs @ 400 cfm, 315 hp I believe. He also had the double hump heads from a 327. Then was lucky enough to find an actual 2-4 barrel intake, and pistons from a 61 corvette. Timing was at 36 degrees full advance. Compression was 11 1/4. He turned it 8500 rpm. That thing would scream. Just FYI, that new camshaft cost $11, lifters $0.80 cents each, pistons were $4. Those were the days.

@cammontreuil7509

2 жыл бұрын

How much were the springs ? 50 cents ? What a bullsh!t story.

@Helloboby

10 ай бұрын

@@cammontreuil7509 back 50 years ago? I believe it

I had a nice built little 283 with a m20 4speed that was installed into a 69 elco. camel hump heads, mild cam, headers etc. Power shifted at 7200 with foot flat on the floor. That car ran hard. Fun times.

I have a 283 short block and a friend gave me a pair of power pack heads. Thank you for the video.

@Mikefngarage

3 жыл бұрын

fun cheap easy combo. and can be pretty fast too. without breaking your wallet.

Thanks for the info. I’m purchasing a 86 s10 with a 283. I get a lot of smack talk about but all I do is smile cuz I know what they are capable of

I run a camel hump 327 in my Willys jeep , I love it, I could care less about ls swaps, old school is still good for me

The one that got away... My first car at age 19, circa '79, 66 Chevelle, paid $350 very little rust rear quarters behind the back wheels, 283 3 speed manual, Malibu, from red light to red light oh man. The previous guy converted it from column to the floor, I put in some 69 Camaro bucket seats. Can't find it today have to pay 100 percent more. Sat in the passenger seat, watched my brother wreck it, put it back together, sold it, and went in the Army, worst and best thing I ever have done. 283's and 327's were impressive, these kids of today have no idea and will never know. Thanks

Well done once more Mike! However, I would like to correct you a little on the 307. They are a very underrated engine, built as a two barrel v-8 option across all models. They are a stroked 283, using 283 blocks and 327 cranks. The double humps are just fine one these engines, to work around the slight valve shrouding problem, a little chamfer on the top of the cylinders helps, but they never hit anyway as long as you are using the small valve double humps. My old Camaro has a 307, had to bore it .040 over, added just about the hottest hydraulic street cam comp makes and advanced the cam four degrees, bumped the ignition timing up to 35 degrees total advance, built a 750 Holley for it and hit the road. Makes a little over 340 horse and 370 torque. Nice thing is, it still gets almost twenty mpg if you can keep your foot out of it.

@cammontreuil7509

2 жыл бұрын

Chevy owners make wild claims.

@Dumdumcanadian

2 жыл бұрын

If I’m reading it right you added v-tech

@Mikefngarage

2 жыл бұрын

Yea I guess the issue was guys wanting to put in even bigger valves than the 194. like 202. If I recall right. I guess the same problem with the 283 but the 283 did not need the bigger valves. they worked well with the 192 194.There were so many engines around at that time. If something had a 307 we would just pull it and run the other engine we had laying around. Had so many small blocks it was not even funny. The stories I could tell about the cars we junked......396ss 66 impala...454ss 70 monte carlo (wife had pinks he was getting divorce) to the crusher they went.

@campervanbug7658

2 жыл бұрын

@@Mikefngarage 305 vortec heads

I bought a 57 4-door wagon with the original 283 back in 84. It soon developed a rod knock and the oil pressure would drop to zero at the stop lights and 12 lbs at criuse speed. Ran it like that for maybe 2 years. That 283 was a tough little engine.

No one said a thing about the real screamer, the early 283 bored to 4 inches, the original 301 It would wind till it blew to pieces Later 283 around 1960 so had thin wall castings and were iffy With the solid lifter corvette green stripe cam , it was awesome. It would blow the synchros in the three speed trans every time A set of corvette dual wcfb Carter carbs Even a 3 two bll set up worked pretty good In 1959 in a 55 Chevy in would slam you back in the seat real hard with the 4:11 overdrive gears A stock 283 with corvette fuel would wind to 6 grand any old day These cowboys now days don’t know what fun is. They just throw money at it, 10 or 20 thousand no problem The fun is hunting parts , looking everywhere and making them work.

Thanks, got 283 in my 65 Studebaker and looking to get it going!

Thank you for your information

In the late 70s I built a couple 283 motors. The last one was a 80 over bore power pack heads 350/350 horse cam under a edelbrock with a 780 duel feed double pumper Holly. I stuck it in a 67 Camaro with a three on the tree and a 373 gear 12 bolt posi. The ol girl could pull the front end a stop lights and carry them across. Plus get 24 mpg. Clocked at 154 mph with drum breaks. Lol those were the days all balls no fear....

@peterdragon9630

Жыл бұрын

Wow, my 1965 Pontiac GTO with a 4 speed topped out at about 125 mph due to gearing. As far as torque and horsepower it definitely had a leg up on a 283 as I had a couple, unless it was in some wild race configuration. Running those gears behind a 3 speed would really send the rpms into the stratosphere and well beyond typical valve float if the engine actually had enough torque and horsepower to pull to 154 mph.

My friend had a 65 elcomino 283 4brl 3 speed floor shift. Snappy fun car, we even raced a guy on a 500 cb honda motocycle and smoked him off the line all the way to top end. You can put the 305 ho heads with 53cc chambers with 1.84 intake and 1.5 exhaust or the 58cc chamber heads. Thats if you can find those engines, they are getting rare now

Big thumbs up from the Bolham family 👍

I had 283 40 over with the camel back heads and a 650 holly, 4 spd Muncie in a 47 Chevy fleet master business cope. Thing was a blast to run the highway with. What a car. I wish I still had it! She made heads turn everywhere. Allot of good memories! ✌️

@Mikefngarage

3 жыл бұрын

Yea those camel back ones were even better same chambers as the power packs and bigger exhaust valves. But harder to find. that is why I didn't mention them.

@danielblaylock5566

2 жыл бұрын

My dad had a 65 impala ss. 4 speed 411 gear, l79 327 bored 30 over 11:5.1 trw pistons, almost to big of a cam for 327 from crane cams, and a McLeod clutch......... No front wheelwells or radiator core support...... A bed rail is what he used............ Car beat most anything he raced................ I'm trying to duplicate that now in a 1963 Corvair............. Titled as a front engine car...........

Thank you very much I am wanting to build a 283 for the muncyy four-speed and an old Chevy 2 if I can find one 283 start quite easy to come by for me I was in a marine mechanic for many many years

The qjet is a great carburetor when built right can make accelerator pump larger change metering rods and set secondary air valve up properly and they are no longer Quadra bog good for every application!👍😁✌️👌

@Mikefngarage

2 жыл бұрын

Love the old Qjets. I could really make stuff run on those back in the day. Go to pick a part and get the rods off of a Caddy....

My 66 283 pulls like a 5.0 mustang. I have it on my 66 c10. Holley 4180 carb, mild cam.

@Mikefngarage

3 жыл бұрын

love the 283 top end just keeps pulling and sounds like its going to snap.

I had ram induction with 2 4's on my 283. installed in a 40 ford coup with Muncie and 4 11's. It pulled 40 chevy with 350 hp 327. Built my 195 Cu inch BMW to 500hp. 3,200 lbs. Way faster than my 40 ford.

Greatly appreciated...I have a 1958-62- 283 eng and 1964-67- 283 eng...1962-67- 327 eng. small journal crank... I'm ready to have fun...

I ran several 283s in the 70s and 80s 1st one was stock 2 barrel carb power pack heads pretty worn out after a while l tore it down put new rings and bearings in it put a set of 300 horse 327 heads on it 2 barrel back on had 3 speed manual trans raced a 69 chevelle same day I got it back on the road and won 305 heads aren't worth a crap for performance

283 was a small bore 3.875 with a short stroke 3.0 Power Pak heads are okay but the camel bumps would be to big if you want compression.

@Mikefngarage

5 жыл бұрын

Love the camel hump heads they're just a little more hard to find but with that combination even the 192 valves in the power packs work pretty good for the 283

@thereluctantgearhead4544

3 жыл бұрын

HO 305 heads work pretty good on a mild performance 283. #081 casting is a good one. 1.84/1.50 valves and 58cc chambers.

I have a 195hp 283 in my 66 Chevelle and it’s about time to rebuild it. I have another 66 with a fast 427 so I just need a peppy 283. 300hp or so for a grocery getter convertible. I’m tired of people telling me to get something with more cubic inches. I thought a 302 motor that uses pump gas would be nice too but I have the 283.

327 is 3.25' stroke and 4.000" bore size, fits large valve heads for real serious potential if built as a screamer. i like it better than the 3" stroke and 4" bore 302 cubic incher. And every bit as good as a 3.48" stroke and 4" bore 350. if i am not mistaken either the 283 or 307 is a thick block that can be bored to 4.060" more than not, far better than a 350 can go to 4.040 or 4.060", however the deck heights shall vary from a 350 or 327 block i believe. It's hard to remember everything about every engine so look up on it. Always sonic check and look for cylinder wall direction and angle trueness so your bore and the material left around it is even on all sides shall be the same as much as possible to avoid having a thin spot in a cylinder wall. Well the machine shop should also help with that kind of thing. A quadrajet is not a vaccuum secondary carburetor, its a mass air density carburetor with a lack of vaccuum actuated secondary, witch is the most badassed carburetor design i have ever seen and can support 600 hp. They can be modified and get decent part throttle economy also because of the two smaller than usual primaries coupled with the two larger than square secondaries. Many use an internal fuel filter and all have 800 cfm capability probably the true 780cfm measured you specified, although not all are configured from the factory in this manner, the lower cfm versions can be upgraded to 800cfm. There was a youtube 2nd gen firebird running NA, all engine, running tens, foot braking, in the quarter mile, with great mph, using one on a poncho 455 engine. it was using a performer rpm qjet intake with a worked quadrajet.

If you can mill the heads or deck the block, I strapped some 062 vortec heads to mine and you wouldn’t believe how good it runs.

The thing of people don't get about the 283 is that the rotating assembly allows it to rev very fast like a 2-stroke engine the crankshaft of rods in the Pistons are already lighten stock 😃🏁🚩

283 & 307 have the same bore size the difference is the stroke. All a chev 307 is, is a 283 block with a 327 large journal crank. The 307 is a stroked out 283 the downside to the 307 is the heads and the cam. The heads are boat anchors with 70cc to 76cc combustion chambers and small valves 1.72 intake and 1.5 exhaust which is the same size valves on your power pack heads. The double hump heads would have 1.94 intake and 1.5 exhaust valves or the not so common 2.02 intake valves and 1.6 exhaust valves but both power pack heads and double hump heads are 62cc to 64cc combustion chambers. I built a 307 with chev 305H.O heads which have a casting mark allot like the double hump heads and the last 3 casting numbers are 416 and have 1.84 intake & 1.5 exhaust valves 58cc combustion chambers. I had the heads machined for up to .500 lift they shaved them .030 all bronze valve guides with positive seals, stainless swirl polished valves, and pinned rocker arm studs for around $1000. I went with a edelbrock 2102 cam kit from summit and z28 valve springs from speedway. Edelbrock intake and carb and hei distributor. She's a screamer i have it in a 2wd 67 gmc half ton pickup with a T5 trans truck came stock with a Dana 44 rear and 3:54 gears

Awsome

I'm building a 58/61 283 with power pack heads mild cam roller rocker solid lifters cranks balanced stock rods dome pistons head now have new 202 intake valves 160 exhaust victor jr manifold Holley 750 carb race starter an water pump great alternator that's pretty much it two speed racing trans Richmond 411 nine inch rear 4 link in 67 Chevy 2

@glennwheat50

Ай бұрын

Pictures to come when she's done

Camel hump heads these days are door stops... No one really wants them unless you are going to dump a lot of money in them, and if you can find a set without cracks. A much better bet is a set of Vortec heads instead.. Massive improvement out of the box.. Big runners.. And fine with unleaded gas. The 327 is not a square engine.. Lol... 4" bore with a 3.25" stroke is not square...

@Mikefngarage

3 жыл бұрын

yea the edelbrock aluminum ones are cheap enough

If I remember correctly you could take a early 283 small journal block and bore it 4 inches and use 302 Chevrolet pistons and I think you'll have what is known as a 301.

@Mikefngarage

3 жыл бұрын

I heard something like that. I think it was .40 over but don't remember the details.

@shitbox7413

3 жыл бұрын

283 block has a 3.875” bore, that’s .125” (1/8”) smaller that 4”. The 301 deal has been done, but I wouldn’t guarantee that every 283 block can be bored that far without being sonic checked. Personally I wouldn’t do it, it’s a waste of a good block that would have a long life at .030 or even .060 over bore. The biggest issue with the 301 build is the lack of cylinder wall at .125” over bore, the cylinder bores can distort under load which compromises ring seal. The 301 was cool in 1960, it’s just not worth the time and money nowadays when 4” bore blocks are everywhere.

@terrycanupp3070

2 жыл бұрын

If you bore a 283 to 4 inch bore you would have a 302 since the 302 was a 4 inch bore with 3 inch stroke same stroke as the 283

@Mikefngarage

2 жыл бұрын

I had a set of 12 to 1 pistons 40 over for a 283 I was going to build. But never did. I think you need to bore out to get the 202 valves to clear. I really dont remember all the details.

@brianargyle7344

10 ай бұрын

283 stroke with 327 bore -- Hotrodders called them a 301, Chevrolet in the Z-28 called them 302. Same bore/stroke combination. Revved like crazy.@@terrycanupp3070

The older I get the faster I was.

92 chevy vortec heads would be great on a 283. Holley makes a 450 bp now for smaller engines.

@shitbox7413

3 жыл бұрын

Those were swirl port heads in 92, Vortecs came out in 96.

@DANTHETUBEMAN

3 жыл бұрын

@@shitbox7413 your right, that's what I ordered from SDPC, for me 283, with a 327 / 350 cam. It's working great.

@shitbox7413

3 жыл бұрын

@@DANTHETUBEMAN Yes vortecs work great on the smaller small blocks, the 170 cc port is big on a 283 or 327.

bro you draw and right numbers exacly like i do😂

@Mikefngarage

Жыл бұрын

one broken wrist later. my writing was bad before and now it really sucks.

The 283 is a small bore. & you do have to be careful with valve shrouding. The 327 is a bigger bore short stroke. The 327 & 350 share the same bore size. The 283, 305, & 307 all have a smaller than 4 inch bore. Thats kind of the unwritten rule for a good bore size for small blocks. I do agree with you that the 283 is a outstanding engine, but it dus leave alil to be desired with the bore size.

you have some info that is a little twisted. the 283 heads had just a square block with no point. the 327 stock heads had a square block with one point like the first drawing you point to. they made a 283-power pack and a 327-power pack both with Dubble hump heads. the quadrajet carburetors were "only" 750 and 800 CFM that's it!

CRAZY COINCIDENCE ! IM SELLING MY 71 SUPER TO PAY FOR MY 66 C10 with a 283 /power glide... I'm still working my 65 sunroof

@Mikefngarage

2 жыл бұрын

Pull the PG out and put in a th700r you will like that better. the biggest problem with the 283 was the powerglide would not let it rev up.

@TheHoodhistorian

2 жыл бұрын

@@Mikefngarage hey Mike glad to see your channel has gotten a tremendous following! I knew that was going to happen. Since that comment I've swapped out the tired 283 for another 283 that was rebuild 20 30 years ago and way peppy. The Powerglide blew out after a few months of driving it. I got a 2004r transmission from a 88 monte Carlo ss that could use a rebuild..until I get it rebuild I have a th350 tranny in. That trucks starts up every time ! It's fun to drive..but I'm over it. I'm really thinking about selling it so I can throw that $ into my 65 sunroof that's been waiting on me since 2016 ! Haha

307 is 283 bore with 327 stroke, 327 is 350 bore with 3.25" stroke.

Does anyone remember how to boost the stock oil pump for increased Oil Pressure?

Good video, but there are a few details you missed. 1. Holley or other aftermarket carbs don't have "4 small holes," they have 4 medium sized venturies that can easily match or exceed the cfm rating of a Rochester q-jet. 2. A Rochester Quadrajet is much more difficult to tune due to its internal design, while a Holley is much easier to finely tune due to its adjustments being accessible from outside the carb. 3. Finally, stock GM manifolds are indeed cheap; however, you can pick up a used aftermarket single plane intake for just a little more cash and have much better results than what you would get with the factory manifold.

I had ported aluminium heads with 2.02in / 1.6exh valves on my 307 Chevy.. it had 3.875" +.030" over four eye brow flat tops.. 125km/h 1st gear, well past 180km/h 2nd gear. The little monster Would spin the tyres on the gear change. It would also make mince meet out of my 5.7L Ls1. Not the most amount of power I have got out of a small block, but it was the most fun Engine I have ever had.

Did the ever put them first heads on a 327 from the factory

I know this post is a couple of years old so hopefully I gets some help. I have a 283 in a 65 impala I restored. I know nothing about the engine as far as specs go. But I have installed an holley sniper efi with hyperspark kit on it. My problem is acceleration. It seems to not have the acceleration speed I hear so many talk about. I have to put the pedal to the floor to get it up to speed even then hitting 60mph is a task. What can be the problem? I would love to turn this little engine into a enjoyable street car and not do a swap, but at the moment I am not getting the joy of driving when I have to pay too much attention just to get up to speed.

@Mikefngarage

2 жыл бұрын

these engines are designed for top end. The power is not at the bottom it is around 3000 on up to as comfortable as you feel revving 6 7 8?. So your fuel supply and cam need to enhance the top end. Also gears need to be low. They dont like 3.07s or high gears. Minimum 3.73 gears. But better with 4.10 also best with th700 automatic (low first gear) or even better with Munci rock crusher 4 speed.

the first thing you do is put a bolt kit on the balancer , that ol dang ting go tru da radiator

@Mikefngarage

2 жыл бұрын

OH yea I forgot that. RPM would do that.

@jimmywilkinson9190

2 жыл бұрын

@@Mikefngarage ask me how I know ?

Hi. I have a choice of using a qjet with a gm iron qjet intake or an Edelbrock perfomer spread bore intake on my 283. It’s a 1964 block with 1964power pack heads. Previous owner used it as a test engine for fuel injection. Says it has a pretty aggressive cam

@thereluctantgearhead4544

3 жыл бұрын

Performer intake with a Q-jet would do ya well.

@thereluctantgearhead4544

3 жыл бұрын

68-72 Q-jet cast iron intake is the best of that type. Marine engines also use the pre emission type intake.

@thereluctantgearhead4544

3 жыл бұрын

The stock intakes with EGR are junk.

Wow you're super new at this

@Mikefngarage

3 жыл бұрын

this is just he old school stuff. There are much better parts now. We used to build them with junk yard parts and beat the $$$ guys at the track.

Would love to have a conversation with you about a 66 283 I just got in a 66 c10. Trying to figure out what to do.

@maggs131

2 жыл бұрын

Keep it and build it. You dont have to dump much money in the way of parts for a fun reliable engine and its correct for your truck

@markekberg8371

Жыл бұрын

@@maggs131 . Sorry. Didnt see this notification. The 283 failed a leakdown test terribly. Seeing the cost to rebuild the 283 is similar to a 383 I am probably going to go that route. So bumbed it was toast.

I’m building from stock a 1964 thicker block 283. Can I stroke it with a 327 crank?

@Mikefngarage

3 жыл бұрын

I know some interchange but I dont remember which ones. journal sizes and strokes. I dont remember.

@ronnieyoung7510

3 жыл бұрын

Long it's a small journal 327 crankshaft

@terrycanupp3070

2 жыл бұрын

Yes and you will have a 307 a 307 is same bore as 283 and same stroke as 327.

I watched both of your videos nice info. what if you used the double hump on a 283 ,I don't need nothing fast just for driving around town

@sandovaljulio

3 жыл бұрын

@John Alarcon you know what i sold my car already like a month it was a 64 impala didn't want to mess with it my kids are into the imported car

@sandovaljulio

3 жыл бұрын

@John Alarcon yup i was thinking about get a f100 '71' to 79' just for me and wife

@sandovaljulio

3 жыл бұрын

@John Alarcon does aunt Sally speak Spanish

@sandovaljulio

3 жыл бұрын

@John Alarcon yea had to let go of that 64 my dad was one of the last person actually work on it and he passed away almost 2 years ago. So he had this ford really nice so iam thinking about it

@sandovaljulio

3 жыл бұрын

I dont get offended iam mexican been here in USA a my life since 78 now 43

Yes you can run camel hump heads on a 283 or a 307 they mad 194 and 202 valve camel hump heads either will work though you might have shrouding issues with the 202 heads they will still work and will not hit anything and just for the record a 307 has the same bore as 283 and the same 3.25 stroke as the 327 and a 302 Chevy is just the opposite it has the same 4 inch bore as the 327 and the same 3 inch stroke as the 283 do the research for yourself

@Mikefngarage

2 жыл бұрын

Yeah I thought we had run those before but I don't really remember those heads are harder to find the 194s I put those on my 327 which came with it stock in the factory

I have a 283 that’s never been cranked with a powerglide. Can I build it to be streetable. I know it’s old I’m not trying be the fastest but still pretty fast with modern cars?

@LordMekanicus

4 жыл бұрын

Since you are running a powerglide, your first step should be a set of lower rear gears, followed by power pack heads, flat tops (don't forget to blend the sharp edges off the valve releifs.), a good four barrel, and either a modern copy of the Duntov 30/30 corvette cam or one step larger. We run similar in our Bocars, well mannered on the street, but man do they wake up. Porsche guys hate me on the track.

@ttgperformance5061

4 жыл бұрын

LordMekanicus what do run in a 1/4? I was trying to get maybe 9s. I have been talking to people at shops and they told me I should junk the motor

@LordMekanicus

4 жыл бұрын

Don't junk it, but 9's might be a bit optimistic. That is, unless your machine weighs under 2000lbs or you can make over 500 horses. It can be done with a 283, but by no means will it be streetable. We are talking supercharged and something akin to a Racer Brown roller cam and a hilborn injector. We roadrace Serial No. 007 and haven't put it to the strip (concerned about twisting the splines off an axle) but Grandpa ran a 10.90 with his first Bocar at the now non-existent Erie drag strip back in the day. Then again, it weighed 1700lbs. I have the flowbench data for both stock and ported powerpacks and doublehumps, I could put together an engine recipe if you like.

@ttgperformance5061

4 жыл бұрын

LordMekanicus yes please if that wouldn’t be to much. It’s my dads old motor and we’re going to put it together and get the most out of it

@LordMekanicus

4 жыл бұрын

Auto Waves, here you go. .030 overbore, roller tip rockers, 10:1 compression, a single 750cfm four barrel on a good dual-plane intake. Use the small valve doublehumps with a mild polish job and mild porting in the bowls. Cam is Comp 12-211-2. That's about as nuts as I would go on the street, otherwise its a bit of a dog down low. With that cam you are looking at about 360-odd horse at 6000, and 370 torque at 4000. If you step up to the 12-213-3 cam, you get 380-odd horse at 6500 and 360 torque at 4500, the low end is pitiful at 60 horse off-idle, more of a racing cam there. I'll put together an all-out race version a little later.

Set at 0 lash no lifter pump up

I’m wondering how a 4 jet Rochester would do, a 4gc

@Mikefngarage

2 жыл бұрын

not very good. they sucked. those were the same primary and secondary. Only worked well with the Q jet or they had a holly version of it. small primary and huge secondary.

A 307 is just a 283 with a 327 crank in it

I didn't think the 327 had the same bore and stroke, 3" 1/4 stroke nearly a 4 inch bore, so I wouldn't think it would be a square engine. I'm really confused by this video and I've been around engineers my whole life, back in the day cops was a little more laid back, you could have a 11:1, 30 over 283 with a good solid cam, Holley 750, and a minimum of 4:11 gears, I prefer the m22 rockcrusher and next the super T10 BW you could snatch gears and jump all over the road at 8,000 rpm's we called it red light to red light cars, then I moved up to the big blocks and never looked back, until the ls7 corvette and I still have it, just can't part with it, a soft launch and there still crazy fast, but the little mouse revved up and dropped the clutch was a blast, I would pull out on most BBC cars up until 330' but keep in mind most of them cars want reving like me and most didn't have steep rears, at the track they eat me up, I grew up watching Charles carpenter in his 55 shoe box with a sb engine, he kept it for a many years, he raced all over but shuffle town in Charlotte NC, and a1/8 Mike track it didn't get any better than that to me.

Who ever told you the 283 doesn't have any Power ?

@Mikefngarage

2 жыл бұрын

there are lots of people out there afraid to rev one up that think they are slow.

283 is a smaller bore than a 327

8500 rpm

327/350 have 4" bore not 3 7/8"

What touqe converter did you use?

@Mikefngarage

3 жыл бұрын

stick shift muncie rock crusher tall first close ratio 2nd 3rd and 4th.

Nice video but double hump heads won't fit on a 283 (or any chevy with less than 4.00 bore). Stick with the power-pack heads or L69 305 heads on small bore chevys.

@howabouthetruth2157

2 жыл бұрын

Oh yes you can, but ya have to do 2 things: #1, ya have to un-shroud the valve clearance issue by doing some machining on the cylinder deck, and use the double hump fuelie heads with the 1.98 intake valves........I think it's also possible with the 2.02 intake valves, but even more machining needs to be done to the deck surface for even more clearance for the bigger valves. I KNOW, because back in 1982, I bought a sweet '66 Chevy short wheel-base fleetside PU truck, full custom cab, that had already been totally restored. The original 283 had been replaced with a 307, and it did have camel hump heads, with a 4" hi-rise Holly intake & 750 single pumper, double roller timing chain, and headers. It had a fairly hot street/strip cam too. Still had the factory 3.73 posi rear end. Ran like a bat out of hell. Because I was 20 yrs old at the time, I ran the piss out of that truck & eventually wore a cam lobe. That is how we discovered that it had a double roller timing chain, while replacing the cam. I was short on cash & desperate to get it back on the road, so I had to settle on a stock cam from a 305 taken out of a wrecked car from my buddy's junk yard. The engine lost a good bit of power with that 305 cam, so I know the cam that was in it to begin with, gave it a much better power band. It was still a quick truck with the stock 305 cam.......but nowhere near as powerful & fast as the cam that was in it before. The man I bought the truck from who restored it, had also built that engine, and he swore it was a 307. I never removed the heads, but why would a man call a 327 ( or even a 350 ) "a 307". Several good mechanics back then told me that it could very well be a 307 with those double hump heads & explained to me what had been done to un-shroud the valve clearance issue. Met another man who had a sweet Nova hot rod at the time as well. He bought the car believing it had a 350 small block. He bought everything to rebuild "a 350", and the 350 rings slid right down on the pistons & landed on the work bench. That is how he discovered the Nova he just bought to build himself a hot rod was instead, a 307. He opted to keep the 307, because he couldn't afford to buy a 350 block after spending his money on the whole car, plus he had already bought a pair of double hump fuelie heads. His Nova was even faster than my truck, once he put it all together. So yes, it CAN be done. Why would anyone want to do all that to make fuelie heads work on a 307? Because that was the block they had to work with, and they scored the fuelie heads. They obviously can't ( or couldn't ) afford to buy a whole other engine block. So now ya know.

@terrycanupp3070

2 жыл бұрын

Do your research guys camel hump heads either the 194 or 202 heads will work on a 283 or 307 I promise you the guys I knew used to take the camel hump heads preferably 202s off of the 327s along with intake carb and cam and lifters and use it all on the 283 to wake them up and I had a 307 with 202 camel hump heads on it and it all worked just fine together

283= 3.25 stroke and 3 7/8" bore. 327= 3.25 stroke and 5" bore337 heads on

@Mikefngarage

2 жыл бұрын

Yea could not remember those numbers. LOVE GM small blocks. they are the best....

Wrong , 327...4 inch bore ..3.25 stroke....283..small bore ..3.875...3 inch stroke .! I dont know who taught you but you better do some reserch before blowing.. you are wrong on many points !

@Mikefngarage

5 ай бұрын

just from memory but you must be right.