[LS1] Port and polish heads

[VX SS 340 HP]

Flowing the heads on my LS1 would it be worth the money seen as i am runing totaly stock internals...i am considering a cam in the near future though...

 

[acarmody]

Port and polish them, and increase compression while your at it. Will run good now (with proper tune) and will run awesome when cam goes in.

 

[soop]

I don't think that's the first place you should start.
The heads flow more then enough for a standard LS1.

Try and find an LS6 manifold and port that a bit. People have reported 9-10kw increase through the rev range just doing that.

But really its hard to say without know exactly what your aim is.

 

[BradSV8]

I agree with Soop, I would start with the cam first and then down the track if you want a little more you can do the heads. ATM you will see a bigger gain doing a cam than doing the heads now. Another option would be too save some coin and go for a 6L or 6.2L conversion.

 

[VX SS 340 HP]

Hey Thanks for the advice im new to the ls1 seen i have only had my SS for 3 months...i am likeing the idea of a 6.2L conversion as i have another car i could put my LS1 into...what running gear would i have to change e.g(gearbox, diff) would my worked 4sp auto bolt up to an LS3 or would i have to change that to...either way it sounds like alot of work but the end product would be worth it