<disclaimer. I know there are TONS of topics on 383s, etc. just couldn't find one involving my specifics >

Okay, here's the scoop. I bought a Formula with an LO3, and that has got ta go. Never planned on keeping "the boat anchor" but anyways.

I'm wanting to build a 383 stroker w/ the following top end:

Trickflow Street/Bracket Kit:
Heads-
Trickflow Kenny Duttweiler 23 deg heads; 72cc chamber, 195cc runners, CNC profiled chambers, and 2.02"/1.6" valves w/ 1.46" dual valve springs (420lb spring rate, .600" max lift) They are aluminum.

Cam-
Hydraulic roller 246/254 duration at .050", .558"/.558" lift w/ 1.5 ratio rocker arms, 112 deg lobe separation

Now, they say they tested it on a 383 w/ a Victor Jr and a Holley 750 carb.

This is all going to go onto/into a ZZ4 block (1 piece rear main seal, hydraulic roller block, 4 bolt) w/ forged Eagle 3.75" 383 crank, 6" rods, and forged aluminum pistons (planning on running around 9.5:1 to 10:1 compression, maybe as high as 10.5:1). I am going to have the rotating assembly balanced/installed professionally.

My question is, I want to use a Stealth Ram (EFI tunnel ram is all it appears to be) w/ this instead of the Victor Jr and carb. Heads and HSR are for pre-87 engines (so says TrickFlow and Holley), so I believe they should bolt up fine.

Any suggestions on this combo? 500+ hp would be nice, the kit claims 500hp and 450 ft lbs, and again that is with a Victor Jr and holley 750. I'm not really asking how much hp I should make, though, hehe. I'm mainly concerned with the intake and heads/cams going well together. I think so, but hey, wanna be sure. I figured I'd go with stuff matched together versus picking everything out myself. I may use nitrous as well, but i'm wondering about the aluminum pistons (or was it just watch for high silicon conent? I can't remember of seem to find the info on nitrous and pistons...)

Thanks everyone.

 

bump

 

to make 500 hp with that cam in that 383 youll want to use about 10:1-10.5.1 static cpr MINIMUM with 11:1 -11.5:1 being a better match

36 lb injectors
a 3500rpm stall converter if its an auto trans
4.56 gears
full roll cage
major suspension work
slicks
58mm throttle body(not mandatory but it may help)

keep in mind that cam will not produce good tq untill about 3500rpm and should still breath well at 7000rpm provided the valve train remains stable, and a REV KIT is very likely going to be necessary if your RPMing the engine above about 6300rpm

 

you've mirrored some other thoughts i had, and added some new ones.

you've mirrored some other thoughts i had, and added some new ones. thanks

pretty much everything that can be replaced on the car by a better aftermarket part will be.

Will be putting in a T56 and the biggest gear I have seen for a 9 bolt is 4.11s. I really don't want to go with a 4.56 hehehe.

And I wasn't sure what size injectors to use.

:hail: thanks for your input

<edit>
read your post on gearing/stalls versus power curves, etc.

Guess I'll have to see what the dyno tells me and do a little math to see what gearing I'd need with that T56.