Black95Form

I am building a serious 383 solid roller direct port n2o motor. I was wondering if anyone has got close to 500 rwhp NA using a LT4 intake? If so, what was done to the intake?

texasTA

Hey Michael, this is Matt (going to buy your cage). I am doing the same setup as you. I already have a set of fully ported LT4 heads by Jordon and a ported LT4 manifold. It is going on top of a fully forged 383 motor with a solid roller setup. The cam is a Cam Motion cam at something like .650 lift on the intake side I am running a a4 behind this and everyone, including Jordon, believe that this setup is going to see between 460rwhp to 480rwhp. So yeah, I believe it is doable. I am also going to be spraying a 300 shot on top of it.

RiceETR96

I made 457 on a ported LT1 so 500 should be no problem with a LT4 thats been ported.........

'94 Bad A Z28

I am sure you can do it, I am hoping to make in that area with just a 'lil 355.

95Bird

I put down 458 rwhp with lt4 heads/intake and it was having some major issues when it did that. It should be in the mid/high 465 range when all is sorted out. This is a 355 with 4.71s and a 9" so your goal should be pretty easy with the extra cubes.

Black95Form

95Bird,

What did you do to your intake? Any welding? Please let me know.

Michael

95Bird

intake is welded to raise the runners and fully ported. Its also opened up for a monoblade. The intake work made a big difference on the flow bench. Steve stumph(SAR2K) did all my work.