Im just wondering if anyone has made some good power and time out a 383 or 396 USING PORTED STOCK CASTING??? I know it would not be the best but just wanted to see what people result are.

 

440rwhp on a mail order chip and stk water pump. They are out there it just really depends on the setup. I'm probably good for another 10-15hp if it were dyno tuned but then again it could very well be dead on or close to it.

 

anyone else use ported stock casting

 

Out of curiosity, are you running a 383 or 396?

 

I'm running ported stock 1995 castings. I haven't had it dynoed to know what the numbers are, but I'm in the 11s N/A with them. They flow 289/205 at .600 with 2.02 intake and 1.60 exhaust valves. My best was with a failing ignition system, so mid-deep 11s might be possible now, now that it's fixed.

 

I will be tryin out a set of 94ported heads with 2.05intake vavles and a intake to match it.It is all going to cost me 1500 but brand new heads new seats vavles.Hopin for 400,400 or somwhere close considering i will be runing a stock bore lt1.Hoping for 11's once i get a rear and some stall

 

Ona side note, where are you guys gettting GM casting LT1 heads and fitting anything larger than 2.00 valves. I would like to know the porter. I know AFR and other aftermarket does them, but since when can you fit these larger valves in LT1 castings.
I make 420 rwhp on my 396 with 95 Heads , 2.00 in, 1.6 ex, by CNC porter in FL. CAm is a XE 230/236 with 11.1 to 1 comp and LT headers with 58mm AS&M T Body, PCM4less tune

 

Mine put down the numbers in the sig before it spun a bearing... We shall see what the 383 i am getting ready to build will do...

 

American Speed, Moline Illinois.

 

LE goes bigger than 2.00

http://www.eportworks.com/LT1LE3.htm

 

Thanks. Mine makes pretty good power, 420 with the little valves, cant complain.

 

Hey, The American speed didnt have any LT1's, just old GM style small blocks.

 

They're local for me and I know the guys there well. They built my 383 from the pan to the intake for me. They don't build and sell LT1s through their site or advertise that they will, but if you bring them one they'll do it without any problem. They dyno the standard carbed engines, but not injected ones since they're not set up for that.

 

396 to answer your question.

 

They need new vavle seats to put bigger then 2.02vavles and ram racing out of oxford pa is doing mine