Re: ls6 .heads 243cc
Why would you bother...outside of a 64cc combustion chamber, compared to the stock 71-72cc combustion chamber, there is no difference. Everything is the same and all it's going to do is bump compression by a point or so (not a .1 but a full point). You'd be better off just swapping the cam and getting a tune and saving the cost of the LS6 heads and with the LS-series a cam swap doesn't require the heads to be removed.
Seems like a lot of cost and work for little gain and having to worry about getting a tank full of bad gas or riding on knock sensors all the time.
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