I learned that I’m on a small block Mopar forum with Addison who owns these heads, nice guy and just thought you should know he’s singing your praises on there , sharing your video links to the work you did on these etc. I was glad to see it and thought you should know Charlie, nice job! 👏👏

@servediocylinderheads

4 ай бұрын

Addison is the kind of customer that makes me smile. He knows what he wants, he has researched it out, no b.s. just straight shooting. I appreciate the update and nice things written about me! Addison also donated the forged 318-3 crank to the Mission Impossible 318 project. Thanks!

Love this stuff! Especially magnums! Thanks

@servediocylinderheads

Жыл бұрын

They are pretty nice. Thanks

I made 400hp (based on ET/MPH/vehicle weight) with a standard bore 318, back in 2001 with a 5.2L 318 Jeep warranty engine that I freshened up (rings on deglazed cylinders/bearings on polished crank) with a M1 single plane intake, small tube headers and a 750 vacuum Holley. I used a small (then custom ground only, not shelf stocking) Comp Cams 270HR cam (218/224*@.050") and 1.6 ratio Ford pedestal type adjustable rockers (Blue Racer brand!) which gave about .530" lift. SImple and cheap, really not much below 3000rpm but a real hellion from 3500-7000rpm!! No head porting, just a good valve job and MoPar .600"-capable valve springs and retainers (not beehive!). Getting 400hp (and a ton more torque than my 318) from a 360 should be easy with those heads, ported and a decent camshaft with an RPM intake. Thanks for posting!!

@servediocylinderheads

Жыл бұрын

Good info! Thanks

LOL! Shinnny! Nice and strong numbers on the replacement as cast head.

@servediocylinderheads

Жыл бұрын

Shiny makes it faster! Less wind resistance!

The problem with magnum heads isnt the intake pinch, its the shortside radius's and the shrouding on the valves..... deshroud both valves and clean up the short sides and around the guides and the increases are substantial.... back cut the valves while you're at it

@servediocylinderheads

7 ай бұрын

Do not back cut exhaust valves. Thanks

These are good heads, I have seen a few good porters get these to 300 cfm with 2.055 and 2.080 valves, 400 HP easy money. Thanks Charlie

@servediocylinderheads

Жыл бұрын

Good info. Thanks

@servediocylinderheads

Жыл бұрын

Wonder how they handle that pinch?

@ROBERTBORGESON

Жыл бұрын

@@servediocylinderheads I dont know I am not a head porter. The information is on forabodiesonly the Gentleman post on there, builds some great small blocks in magazines articles etc. { SKMFX Budget Small Block - Popular Hot Rodding Magazine } that's a link to one of his builds .

Hard to believe the stock castings had that much as cast flow potential ..thank you for the great vid ..

@servediocylinderheads

Жыл бұрын

Thanks!

@servediocylinderheads

Жыл бұрын

Chevy vortec flow almost as much

I did the first 5 angle valve grind I have done in awhile today. I guess you inspired me to get to work!😊

@servediocylinderheads

Жыл бұрын

That sounds like my wife yelling at me.

So that means that those heads flow a lot better than 340 heads.

@servediocylinderheads

Жыл бұрын

Yes, you are right.

Well that looks promising. I don't see why a guy can't get 260 cfm out of these with a good valve job and little work.

AMC design taken over by Dodge and called Magnum. they respond well to 2.02 Intake valve and full porting.

@servediocylinderheads

Жыл бұрын

Good info. Thanks

Looking forward to seeing more of this project.

@servediocylinderheads

Жыл бұрын

Stay tuned!

I have a set of untouched CH318b heads. They flowed in the 253 cfm range at 0.550” lift. That was with a Hughes intake valve. They backed up to the 236 range with Ferrea valves. I wasn’t sure about the Hughes valves, so that is why we went with Ferrea. This was for a Bmod engine endurance engine.

@servediocylinderheads

Жыл бұрын

Good info. Thanks

Flowing like a good set of ported E7s...Those should do 400hp stock.. Message the low/mid lift numbers and those would be torque monsters with a low duration torque cam.

@servediocylinderheads

Жыл бұрын

I think these will work out real well. Thanks

They have no ridge behind the guide

@servediocylinderheads

Жыл бұрын

I noticed that too. Thanks

Any data on the Chinesium castings?

@servediocylinderheads

Жыл бұрын

Magnums? None.

The lack of shrouding in the chamber looks pretty good too yeah?

@servediocylinderheads

Жыл бұрын

Not bad.

There is more area between the seats

@servediocylinderheads

Жыл бұрын

Than stock magnums?

@seanbragg1696

Жыл бұрын

@@servediocylinderheads no z heads

@servediocylinderheads

Жыл бұрын

@@seanbragg1696 Yep, no doubt. Thanks

@seanbragg1696

Жыл бұрын

@@servediocylinderheads this almost looks like you could ramp angle infront of the guide a little more and get more direction toward the cylinder

@servediocylinderheads

Жыл бұрын

@@seanbragg1696 stay tuned!

first here and the fourth thumbs up.

@hotrodray6802

Жыл бұрын

😮 didn't know it was a contest 😆

@servediocylinderheads

Жыл бұрын

Everything is a contest....