zrc3john

Might have mentioned before in previous post.....I have a fully forged 383 stroker short block sitting on a stand in my garage....Thinking of swapping out my worked 350 for it for my 73..Cars a 4 speed..

Basically I'm going to switch over all the parts from my 350, except the heads....Holley 750 CFM,Edelbrock performer intake, MSD 6 AL,electric fan set up, hooker super sport headers, etc, etc....

If I do this I decided not to use the heads on my 350....They are pro comp aluminum 2:02 1:60 64 cc 190 cc......Actually these heads worked out well and the motor produced good power with no problems....265 HP and 345 torque to rear wheels..

The cam that's in the stroker is a custom grind ( so I was told) similar to Comp cam 12-212-2 magnum 280/280 ....480/480 hydraulic flat tappet..

With this set up which heads would work best? Looking for good street power and the occasional blast on the track ( never ran the car in a 1/4 mile)......

I know most will say AFR......There kind of pricey compared to others...I was thinking Edelbrock or maybe Dart?

Anybody running a similar set up to what I'm thinking of?

Thanks....

MotorHead

Yeah I had a similar setup with my 355ci. It had iron Sportsman II heads and had the Magnum 280 cam in in it and made 300HP and 330 Ft'lbs at the wheels.

If you step up in cubes then you step up in heads and cam as a general rule pf thumb however the Sportman II heads will work with a 383ci and air flow supports 500 HP.

I would also consider ProFiler heads as they are getting more popular in the small block world as opposed to the big block guys who have been racing them for years.

C3 Stroker

Trick Flow heads are a good alternative if you don't want to spring for AFRs. I had good results with Trick Flow 195's before switching to AFR's on my 383. I would avoid Edelbrocks, only because their angle plugs don't fit well with Hooker headers. (Maybe they've changed that by now?)

GOSFAST

Just a tip, those heads you already own will make between 450 and 500 HP with very little attention.

With those PC-3001's we are at 440/450 HP with NO porting, simple bolt-together and we are at 490/500 HP with about 2-3 hours worth of porting.

Thanks, Gary in N.Y.

P.S. These numbers are ALL on the retro-roller platform, we use no flat-tappet's for these type builds!

zrc3john

So basically with the pro comp heads and the rest of the set up I have I should be between 440-450 horse? I bought those pro comps about six years ago....At the time they were some of the most inexpensive aluminum heads out there....Just to be on the safe side I had the heads checked out before they were put on.....They needed very little tweaking att the time but I just wanted to be on the safe side....

GOSFAST

Hi John, most definitely, 440 would be the low! Lost track of how many we sold, not a single complaint/issue.

We still sell AND build a number of 383's with those heads, PC-3001's!

Thanks, Gary in N.Y.

P.S. It WILL need a roller setup to make it happen though! At least a retro-roller for sure! Most of the lower HP units get 236*/242* x .540"/.560" x 112* L/S cams. This setup works well from 2200 to 6000. Makes for nice comfortable "drivers".

Pop Chevy

I bought the Pro Comps a few years ago also-no problems. They are on a 355 , it makes good power also. Going to build a 406 and will use the same heads on it.

A C

I used Brodix IK 200 heads on my 388. Made 510 hp on the engine dyno. The ez-efi computer was still learning to dump more fuel in so I know there is more power available. Idled like a stocker and we ran pump gas. Full roller setup though. Nice heads and not overly expensive.

NewbVetteGuy

Brodix IK 200 heads are roughly AFR money, aren't they?

I would look long and hard at the Profiler 64cc, 195cc. They're available through Jegs when they're on sale for $998 for a pair taxes and shipping included. They've got incredible airflow where it counts with the air velocity up near the max all the time to keep torque up there. -Quality castings; made in the USA, too.

They're available in 185cc and 195cc intake port size but the cross-sectional area is pretty tight to keep air velocity up, up, up. Jegs makes them available pre-assembled with everything you need; just order them with the springs that are appropriate for your cam type.


This is the older version here: http://www.hotrod.com/articles/ccrp-...head-shootout/

For a 383, I'd definitely recommend the 195cc intake ports.

I couldn't find anything that could touch them for top-tier performance for the money.


Adam

NewbVetteGuy

Profiler site: https://www.profilerperformance.com/...ree-heads.html



Air Flow Detail #176 - 195cc Runner

Lift Intake CFM Exh CFM % Exh/Int
0.200 145 110 76%
0.300 209 145 69%
0.400 254 180 71%
0.500 273 206 75%
0.600 274 213 78%
0.700 276 216 78%
0.800 276 218 79%


The only Darin Morgan designed heads you'll ever touch for this money. Some really big names use them and offer them mildly cleaned up and ported and produce some insane HP with them (well, for an SBC, anyway).


Adam

96 lt-4

For no more cam than you have I would run what you have.Maybe freshen the valve job and a little porting if need be with some 1.6 rockers and have at it.

jb78L-82

Unless you are going to a roller cam with MUCH more lift, what you have is more than adequate...........

A C

True

Sorry. Didn't look at the cam specs closely.

zrc3john

Actually running 1.6 rockers in my 350 which I would transfer over anyway....

​​​​​​​Trying to keep the budget low so I'm thinking of just using the pro comps and putting in a roller cam to match up with the heads...

Drothgeb

gkull

did you realize that this is a nearly 2 year old post? But anyway the correct answer for a little duration low lift H-flat cam and Edl performer intake. Just reuse your 190 cc heads because you are not taxing the flow ability of what you have. If the poster has a roller cam and bigger duration, lift, and intake manifold think about bigger heads