Hi I wanted to ask a quetion on the cc of LS1 heads it is just that I am buying a short block from this guy and he says that with 67cc heads compresion will be 10.0:1 and with 76cc it will be 9.5:1 I just wanted to know what the cc is for that reason and also will the tpi work for a engine with over 400hp I am going to get it ported and everything bigger injectors pressure regulator and probably a better fuel pump too but would it work. Also would I need to have a custom chip or is there a decent chip already made
Thanks
Matt
87 Silver Trans Am
305(dead)
350 is coming

 

Did you say LS1 heads? I hope you realize that the LS1 is a totally different motor than a standard small block. The LS1 heads will ONLY bolt up to a LS1 Block.

If you plan on putting an LS1 in your 3rd gen, I hope you have a pretty fat wad of cash and a whole lot of time/patients. I heard this is a very time/money consuming project to get an LS1 installed in a car like yours. Different motor mounts, totally different wiring harnass, different style fuel pump, oh yeah and if you have a manual tranny you will need an LS1 manual tranny to work. A standard t-56 will not, repeat WILL NOT bolt onto an LS1.

Why mess with all that crap when you could build a small block like a 383, run a mini ram fuel injection system, and spank an LS1!??!!?!

 

No what I want to do is put a set of LS1 head on to a regular 350 the enigne I will be getting is a 72 4bolt 350 so you are saying that they will not bolt up.
Thanks
Matt

 

Dude if you get a LS1 head to bolt to a 1972 350, Your a animal... a 1972 350 is a GEN1 engine a 1998 to 2001 LS1 is a GEN3 engine, the only thing these engines have in common is the name chevy and I think the oiling system.. Kevin

 

No, they wont bolt up. The head bolt arrangement on the LS1 heads is totally different, they use 4 around each cylinder rather than the 5 used on the typical SBC. Basically the bolts would line up real well with the water ports in your 350 block.

 

Get vortec heads for your 350. Like other posts ls1 heads wont fit is on a tottaly different engine

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91 RS' TBI 305
mods:
dynomax exhaust, lakewood control arms, gutted cat, pioneer deck, tbi spacer, jet stage 2 chip, K&N four inch element and open element, accel cap and rotor, moroso plug wires, msd blaster coil, bosche +4 spark plugs. Alot more mods to come!!(update 11/01/00 pulled engine
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2001 camaro SS LS1 onyx black, SLP dual/dual center exhaust which brings horsepower to 335hp and 350ftlbs of torque, T-tops, 6 speed, Hurst shifter, cags!, mti lid and K&N and popped screen out of maf, power everything

 

Are you sure you don't mean LT1 heads?