WHat kind of power is possible with a stock Ci LT1? Also, what heads/cam is needed for this? Thanks for any imput.

 

How much are you willing to spend?

But eh... 420+ rwhp N/A with ported stock heads is possible with good street manors still.

 

The money is not in the equation.

I really dont care about the street manners. It is going to be a race only build.

 

With high compreession, a big solid roller, a single plane conversion and the ECM to support 7000+ rpm, 500 wrhp is not out of the question.

 

If you build a 355, you can turn the rpm necessary to make power. If you get it set up correctly with a well ported aftermarket casting, Super Victor intake manifold converted for LT1/EFI, solid roller, high compression, and all the supporting mods you could certainly hit 500rwhp but it isn't going to be cheap.

 

What kind of money are we talking here?

 

A good solid roller 355 will have ~$1200 in the bottom end, $1000 in machine work, $2500 minimum in the heads (aftermarket castings plus porting), $3000 in the intake/valvetrain/cam, $1500-2000 for aftermarket engine management, and a $1000-$2000 for bolton's depending what you need.

The cheap way to 500rwhp is a cheap 355 (good pistons, rods, and the stock crank) with a cam and a big shot of nitrous. It will get there on stock heads even.