The l79 is a two bolt small journal motor. At least the six I've seen inside of. Double hump didn't hurt either. They twist up faster than a 350.

@titolombre7004

4 жыл бұрын

Just bought my DREAM CAR/ 1964 Chevy Impala SS w/327 250hp engine. He threw in a set of Double Hump Heads just in case I wanted to go the 300hp route :-). I've read somewhere that the 300hp engine had a Solid Lifter Cam, unlike the 250hp hydraulic version. Guess I have some research to do

@Deepwatertackle

4 жыл бұрын

You are right GM "NEVER" produced a 4 bolt main 327......

@MasterWitchDoctor

3 жыл бұрын

@@Deepwatertackle thats like a 4 bolt 305 lol oke

@CzechSixTv

Жыл бұрын

@Bryan Stoll While all factory 327's were indeed 2 bolt, the '68 L79 had a forged large journal crank. It was the only year such a crank was produced('67 or earlier 327's were all small journal and '69+ 327's were all cast large journal). I know this for a fact because I used a '68 L79 crank in a 4 bolt 350 block when I built the motor for my '69 Nova.

@billstovall3813

Жыл бұрын

​@@MasterWitchDoctor not really. The 327 had way more HP and Tq potential than the 305. Although from what I understand, a 2 bolts can handle upwards of 500 plus power before the design becomes an issue.

Hey Richard/Comp, Please continue this series. It really provides a great platform for visualizing many of the traditional builds that used to take a few pages in our favorite Motorsport Mags. I enjoy the content, keep them coming!

richard the original l79 was a small journal crank motor , the four bolt l79 came to be in 68 when gm came out with the 350 the 350 has larger mains and the other had small journals the both used the same block in 68 and a 780 cfm holley , with solid lifters , i have one from my dads 65 vette all original , we only pulled it because he wanted ls power and a automatic

Not the correct pistons, Not the correct heads not the correct carb. and the L79 was not a 4 bolt main.

@scottbrooklyn2995

4 жыл бұрын

Still a great test

That's a good cam for that motor on the street, look at the tourqe from 3000 to 4500 is your rev range on the road. 🛣️ A nova or Camero or old truck would all be fun to drive with that set up.

Do something on the 400 sb!!

@tripdan

5 жыл бұрын

Pontiac 400

Good evening sir, just wanted to say thank you for your KZread videos with speed secrets. Not a ford guy but I really did enjoy the 400m video. Was wondering/ hoping to know if you might be planning a 283 episode? Me being a Chevelle guy and also being on multiple Chevelle pages and even have small Facebook page to document my own 67 Chevelle build I know a 283 build will catch the eye of many. I will reshape the living hell out of it. I know I would love to see a stock 283 with power pack heads, then a run with those pretty trick flow super 23 175 heads you have paired with an air gap and the comp l79 cam , and what ever other combo you put together.

No 4 bolt main 327

Any chance i could get a list of the parts you used for this I would like to build one for an elcamino

What about a L79 in a 283 sbc that is what i am thinking off doing

@pepitomateo1

3 жыл бұрын

I did it, great results

@DANTHETUBEMAN

2 жыл бұрын

I have one with 97 vortex heads, it's a handful in my Datsun 260z.

Umm, an L79 was a small journal crank and a 2-bolt main through ‘67. 350’s were large/4 bolt in performance builds. At least that’s how it used to be.

@MasterWitchDoctor

3 жыл бұрын

you are correct Sir

@normbeck20

3 жыл бұрын

They also made L-79 in 1968 lg journal, i have one

Any insight on why the L79 never made it to the Camaro? Or did it?

@bobthbldr3

Жыл бұрын

I believe it's because the Camaro got the 350 engine.

@billstovall3813

Жыл бұрын

@@bobthbldr3, I think it had more to do with the trim package. The 302's were only designated for the limited # of Z-28's. SS cars came with either 350's ( 295 hp) and 396's ( I believe 325, 350 and 375 hp). The 275 hp 327 was available in any other camaro. With Chevy offering two " hot" engines in the dz 302 and L78 396, I think they felt it was overkill offering the L79 327, especially given their plans to unleash the LT1 350 in the '70 model year.

Is there a cheat sheet anywhere for all the GM engine codes? "L79" meant nothing to me; thank heavens there's a "327" clue in the vid descr!

build a 400 and put a L79 cam in it with good heads and manifold with 1.7 roller rockers and a 780

@MasterWitchDoctor

3 жыл бұрын

7.5 roller rocker?

@sideswiped6874

3 жыл бұрын

@@MasterWitchDoctorLOL edited

@1965l88

3 жыл бұрын

I've done it, with 2.02 "fuelie" heads, 10.5:1 compression, and an Edelbrock intake. The L79 cam is pretty mild for a 400. Power with it peaks under 5500 rpm in the 327 and it felt like it peaked under 5000 in the 400. Very good low end and midrange, though.

@sideswiped6874

3 жыл бұрын

@@1965l88 I have heard people say they were not impressed with the L-79 cam. you got to know the fuelie head you got, cause some did not preform up high that well. as I know Chevy has 2 grinds of the L-79 cam. or I should say "I have seen 2 different part numbers for the L-79 cam!" note, that in 1968 Chevy built a heaver L-79 3rd generation Nova. I have to wonder if that 2nd part number was for the heaver 3rd generation Nova. I bought the L-79 cam because my friend was a big parts guy for Chevy and he dragged raced Muscle cars in the early 70s, he had the 70 LT-1 Vett. well I was out to buy the LT-1 cam but he told me the L-79 cam was a better street cam. so I bought it. my built 327 had the 71 LT-1 heads, Torquer 2 Manifold, I would shift at 6200, many times I would rev her to 7000. carb was a Holley 650. compression was 12.8. Pistons were tight. rod bearings were set a bit loose. most cars, shall I say all cars would get me off the line, but I would always catch them. she pulled really good between the gears. that was so long ago.. my best friend had the 69 428 Mach 1 Cobra Jet Mustang, the sticker on the door read "370 rated HP" and my 327 could walk it. I raced a 67 Vett with a 396, passed him just inside 3rd gear. too many stories to tell

Where's the test haha, I just see results. I want to hear that motor scream!

I wonder if this guy knows which end of the screwdriver to grab?

@wakjob961

4 жыл бұрын

This "guy" has done thousands of dyno runs at Westech.

@jerryhablitzel3333

3 жыл бұрын

I think he just might.

Something fishy here. GM never made a 327 with 4 bolt main caps. This show needs to get there shit right.

@wakjob961

4 жыл бұрын

Large journal/4-bolt late 1968-1970 327's are rare, but they do exist. Might have been a Corvette exclusive thing.

@vhp454

4 жыл бұрын

@@wakjob961 327 engines were only small journal. I have GM service manuals from 1965 to 1975.

@Captainfab406

4 жыл бұрын

@@vhp454 Better crack open one of them manuals again. The '68-'69 327 was built using a large journal block. There was also a large journal 327 forged crank.

@vhp454

4 жыл бұрын

@@Captainfab406 My GM service book shows only a 350 with large journal. Not trying stir the pot but i am guessing it could be possible. Atleast i haven't ever seen a large journal 327.

@MasterWitchDoctor

3 жыл бұрын

@@Captainfab406 all the small journal 327s had forged steel cranks ;)

High rise manifold? Holly carb? NOT!!!!

@normbeck20

3 жыл бұрын

Had what's considered high rise intake for the time , winters aluminum dual plane and came with a 585cfm holley carb ,i have a all original 66 L'79 engine in my Nova

@richardrichard4394

Жыл бұрын

holley carb 585cfm small journal 2 bolt main 68 to 70 block 4 bolt larger crank journals

@bobthbldr3

Жыл бұрын

In '65 and '66 they came with the aluminum high rise manifold and a Holley carb and were rated at 350 hp. In '67 they changed to a cast iron manifold with a Quadrajet and rated it at 325 hp and only put about 6 of them in Novas. I think they didn't want the Nova to outperform the new Camaro coming out that year.

Many "performance" motors under performed this old set up.

Wrong, Wrong, Wrong. L79 327 never came with 4 bolt main caps. Mr. Holdener, if you are going to post expert advice on You Tube, make sure you do your homework or ask someone who knows better.

Heres a speed secret for you. Chevrolet dyno tests their ENGINES (motors are electric) with an alternator, power steering pump, a standard water pump not an electric one and stock manifolds. The exception was the ZZ4 which was tested with 1 5/8s headers. So go and do a realistic comparison next time instead of using an electric water pump and no accessories and come tell me how close it is.

@DANTHETUBEMAN

2 жыл бұрын

Old time gas might have been better for power back in the 60's.