Hello, thanks for taking the time to help me out (I'm new to this). I have a L31 for my Camaro. I have a lot of the build planned out, but my problem is heads. I have the 906 vortec heads. The heads if ported and polished don't seem bad. But I'm super limited on what intakes I can use. The stock intake would always be a point of restriction. My question is, what are some aftermarket heads that would be good for my build? I kinda like the assault 200cc heads. But I'm doing a lt4 hotcam, and hopefully a ported and polished Lt1 intake with headers and 10ish compression. (That intake if the heads support it). From what I've read the 906 heads have a unique runner angle that most intakes don't. That's what's swirling around my head, if anyone can make sense of it, any input would be greatly appreciated. I just haven't seen enough intake options for my 906 heads to justify using them. (325 rwhp goal btw)

 

You did not search very hard then. Considering the assault racing heads don't seal right unless you use the same intake as the 906 heads.


Edelbrock 7116 or 7516 will do the job. Or you can get one of the cheap Chinese copies if you are going carbed.

The LT1 manifold is reverse cooled so you cannot use it on your motor or the assault heads

You can get a vortec TPI base if you want to stay MPFI

 

The lt1 intake can be modded to fit. I got a quote from a machine shop for $250 rough estimate to do it. I'll look at those heads, thanks man!

 

I do wanna stay fuel injected if possible.

 

Are you TBI or TPI?

 

Stealth ram vortec TPI base

http://www.summitracing.com/parts/wn...FY3m7AodNmcAow

Vortec TPI base for factory TPI manifolds

https://sdparts.com/index.php?q=deta...-center/sd3816




http://www.gmhightechperformance.com...oller_cam.html

Brian's Firebird had a few more changes, as listed below:
Car: 1989 Firebird
Displacement: 350 cubic inches
Block: 2-bolt main 350 Chevy
Crankshaft: GM Nodular
Pistons: LT1 Flat Top
Connecting Rods: GM Powered Metal
Cylinder Heads: Vortec
Camshaft: LT4 Hot Cam
Throttle Body: Edelbrock 52mm
Intake Manifold: SDPC TPI Vortec
Runners: Edelbrock High Flow
Fuel Injectors: 24 lb./hr.
Fuel Pump: AC Delco
Headers: Edelbrock TES
Exhaust: Stock
Transmission: TH700R4
Converter: Hughes, 3000 rpm
Rear End: Stock with 3.73 Posi
Shocks: Koni
Wheels: 16 x 8 Pontiac GTA
Tires: 245/50R16 front and rear
Power: 357 hp and 416 lbs.-ft.
MPG: 16 town/21 highway

Read more: http://www.gmhightechperformance.com...#ixzz2wFtrppqx

 

I like the tpi one for sure, do ls injectors fit in the pre ls intakes? I've never messed with newer ls motors, just newer gm v6's.

 

no idea about the injectors but the L31 is not a LS motor

 

Yeah I understand that, my point was I didn't know what the injectors looked like.