regorih383

iTrader: (21)

i would like if all of you can give me advice on what i should do or what i should change.. and what kind of power it will make ....

what i got...
:383 LT4 block
:Forged 4340 Eagle Crank
:Forged H Beam Rods
:Forged JE Custom pistons .30 over, Flat Top
:MSD 6AL with 8mm Wires
:1.6 RR
:CC 306
:Stage 2 LT1 Heads, 3 Valve angle job,milled, Flow @ 260 at .600 lift
:High Volume Oil Pump
:Stock LT1 Intake Match ported
:30lb. Injectors
:58mm TB
:SLP Mid-Lengh Headers 1 5/8
:3in. Borla Exhaust
:Stock Water Pump
:A/C Delete Pulley
:Stock Fuel Pump, Would like a 255 fuel pump
:Custom Tuning

any input would be great..

car weight is 3400 and has 3.73 , let me know

T/A Medic

iTrader: (1)

probably make in the neighborhood of 390-410

can go with an electric water pump ...

and if you go with hooker long tubes you will get more over the SLPs

everything else seems to be pretty good... try to change the fuel pump if you can just for reliability ( u said stock i assume it has a lot of use ) and extra flow for the stroker

Damian

iTrader: (89)

Thats a little off IMO. Even with the mid SLP's, that motor should still make 430-440 rwhp.

I would definately junk the SLP's though. You'll make a decent bit more power with the Hooker longtubes. That setup has the potential for 450/450 or more

Check out our LT1 section for a little better info on your setup, or also www.camaroz28.com as their LT1 section is the biggest on the net. Good luck

Beast96Z

iTrader: (21)

I'd guess in the same range. 390-410. The cam is old and rather small for a 383, plus you would want a little bigger cam to combat the poor flow of the heads. I'd get some LT headers and a electric WP. Possibally a underdrive pully also.
Damian, most of the LT-1's i've seen were very stout grade A set-ups if they made 440 to the wheels. I'm sure you've seen a few in your day also, but LT-1's are lack luster when it comes to big HP numbers. For comparison, a MTI 396 with MTI Stage 2 ported LT-4 heads and the same cam puts out about 430 here locally. The mods as compared to above are almost identical. JMO

T/A Medic

iTrader: (1)

yeah my buddy has a 396 SR w/ AFR 220s ported by GTP. 13/1 CR and got 500 rwhp... through a 4l60e and 9"... that is a whole lot of motor.

regorih383

iTrader: (21)

Hey Beast what cam would you recommend?

MrMex

i got a big one that i promise will make 420 at least..pm me if interested.

Mike TexaSS

iTrader: (2)

400 RWHP. If you add a water pump. My 409 LT4 with a hot cam only made 390 rwhp and 420 rwtq through a auto.

Im swapping to a solid roller and will be posting dyno numbers.

Shoot for 460 RWHP on motor. See the LT1 section for pics of my motor..

PurEvl

iTrader: (2)

My friend who built his at NEdyno has a 396 lt4 stroker with gtp heads and a cc306 and all the other bolt ons and electric pump yatta yatta...and he put down 430rwhp. http://www.96z28ss.cz28.com/index.html