taws6

iTrader: (2)

What kind of gain should I see?

And how many hours will it take the average diy home mechanic to do the swap?

Thanks for the advise

neutron82

iTrader: (26)

your question is waayyyyyyy too vague... i would try searching the dyno comparisons or gen3 external engine sections and find someone who has a similar setup... factory 243 heads on a stock motor will prob make around 15-20rwhp give or take, but once they are ported/polished/milled and you throw in a different cam/intake/pistons/etc those things will ultimately determine how much power you will make... if you want an accurate number then just dyno your car and see what it does... i can almost guarantee you won't lose any power though

taws6

iTrader: (2)

Thanks for your reply neutron82

I'm talking about JUST swapping the heads for ported LS6, and keeping the stock cam and TC, and compleating my planned mods in my sig......

Saying that, I'm assume I can swap just the heads??

Thanks for the input

SOMbitch

iTrader: (8)

Yes you can do it provided you have all the proper tools. Some guys on here make like it is real easy but unless you have done it a few times it can be a bitch. Especially working under the cowl. You will also need head gaskets and bolts, fluids, plugs and I would do the OPSU too while you are there. This might help>>>>>http://www.ls1howto.com/index.php?article=3

taws6

iTrader: (2)

Thanks for your reply SOMbitch.

It does look like a heck of alot of work, thanks for the howto link, I think I'll may just go with the n2o if I want more after the exhaust etc

Cheers again

Paul

SOMbitch

iTrader: (8)

Good luck whatever you decide

MonmouthCtyLS7

iTrader: (6)

15 stock .all depends on the level of porting