galluccib

Building a 402 - LS2 stroker for my sandrail and need some help finishing the build. I'm not sure what Cam and injectors to use so I was hoping you guys could help out. I'm trying to get 570whp/575wtq - The more wtq the better.

Motor Specs:
- Caliies forged crank and rods
- Compression Ratio: 10.5:1
- CNC 243 Heads - Intake 2.000, Exhaust 1.550
- Fast 90MM w/ GM LS Performance Intake Manifold w/injection

- Cam ?
- What size injectors ?


Which is better ?
- GM LS Performance Intake Manifold (#88958675) or Truck Intake Manifold

Thanks in advanced

99blancoSS

iTrader: (115)

Is that fwhp?

1.8t

You aren't going to make those numbers without a power adder if your talking about rwhp.

galluccib

I'm hoping for rwhp... What do you mean power adder ?

What do you guys think I'm looking at rwhp then with this setup ?

Thanks,

ndfrsd6

iTrader: (5)

power adder is a turbo or supercharger setup .....in my 402 im putting down 500 to the wheels so i think you'll be in that area.....

Gary98Z

iTrader: (9)

I'm thinking you could end up in the 550rwhp range with an aggressive cam.

Power adder means supercharger, turbocharger, or NOS.

galluccib

I wanted to try and stay away from turbo or supercharger because of the budget

What do you think would be the best cam ? Remeber this is for a Sandrail and I need to get every last bit of torque I can out of this 402.

Any thoughts on the intake - LS Performance Intake Manifold (#88958675) or Truck Intake Manifold

Thanks,

1.8t

I could be wrong but I am thinking you are going to need aftermarket heads and more compression to get close to your target numbers. That and all of the premium add ons anyways...

galluccib

So you don't think the CNC 243 heads (228 with Intake Runners) will flow ?

Thanks

dkrowner

iTrader: (6)

for injectors get some 42lb's or 48lb's,on the cam i'd just call up compcams in have them spec u out a cam