i have a 94 camaro...v6 swapped to the lt1 =) got 410hp...its bored .20 with je rcing pistons eagle rods ssteel enforced heavy duty stock stroke crank, clevite bearings...new valve springs...edelbrock 52 mm throttle body bbk shorty headers to borla...i need help with gettin more numbers for cheap...im 17 im broke...i want ported heads but cant afford them...is gettin lt4 heads worth it over ported nd polished lt1 heads, i also want a better intake...im runnin stock intake manifold which should i get? oh my camshaft is a (.215/.230, .510/.510) should i go bigger? what would be a better size? its a street/strip car.i need cheaper options i wanna run at least 600hp maybe 550+...im almost there just dont know where to go from here...always been a chevy fan just a first time owner...i built this car my self and wanna keep going! helppp!!!!

 

With what you have you're into the expensive stage. My first recomendation would get upgrading to a 58mm TB, you're probably outflowing the stock one if you're pushing 400 HP. The LT4 heads aren't worth the money, they're really expensive for the numbers they make, you're best off saving up for a good port/polish job on your LT1 heads or going for a good aftermarket head such as AFR. Check out http://www.totalengineairflow.com/ they get some pretty good numbers out of ported LT1 heads.

As far as your intake goes, you really can't upgrade much over the stock LT1 intake, and it's not going to get you anything unless you're running different heads. You could get the LT4 intake, but the only difference is the intake runners are raised 0.10" over the LT1 to accomodate the LT4 heads. The stock intake flows pretty well, especially if you have it ported for a 58mm TB and have the intake runners port matched to your heads. Other than that it's just an open piece of aluminum, it's pretty hard to outflow a hollow tube.

You could run a little more lift on your cam as long as you know you're not going to have any piston/valve interferance. If you aren't already you could get some 1.6:1 roller rockers to try and get a little more lift out of it. You could probably get a bigger cam, but that's going to take down drivability.

To get above 550 HP (I'm assuming we're talking crank HP here since an LT1 isn't going to make over 400 RWHP with the stock heads...) you're probably going to have to think about stroking it out to a 383 or going for a FI build.

 

thanks man...i was thinkin just goin one step up on the cam instead of the 215/230 i was thinkin the 230/240 .510/.540 and as far as heads go im gonna get the stage 3's off that site u gave me prob by august and well see how it goes...my friends dad has a 95lt1 with a cracked block so i might just take that s trim vortech hes got...thanks again man

 

if youre going to blow that motor dont go that big with the duration. you will want smaller duration (well, not smaller than u have now, but def not 240) and higher lift, otherwise you dont pressurize the chamber and you just blow the air back out the exhaust side.