243 heads

[02chevyls1]

i see the 243 heads talked about alot on here just wondeing whats so good about them and i have a set of 862 heads gitting hand ported and flow benched by a guy that worked on the design team for the gm performance devision think the 862's will be worth it.

[D_reks5.3]

the 243s are the ls6 heads and they flow pretty good for stock and will raise compression on your 6.0 but will lower it on a 5.3 unless you mill the shit out of them..