so i have a spark plug hole stripping out and i figure i need new heads anywayz.. what would be the best choice for a 4.8? i figure ill just end up putting the same heads back on it but i was curious about all the others that match up to this motor. i have all the basics.. intake, exhaust, tb converter, hypertech, granatelli maf sensor, now looking at some gears and a cam.

 

check with richard at west coast cylinder head he has some nice products

 

well im not looking to spend to much just yet.. just something to get me by for now. and if it happens to be better than stock, thats just a plus

 

Pick up a used 5.3 for less $$$ than a set of heads L cost ya. Everybody in texas has a 6.0, so 5.3s have gotta be layin round everywhere.

 

yea.. im lookin at a 6.0 in the future too but imma run this 4.8 till it dies. im close to 180k miles with a 50shot of juice. i found alotta heads at the same price but now i just need help deciding what casting would work best

 

If you can pick up a set of LS6 heads cheap get those as they flow better.

 

4.8/5.3 casting-derivative heads are the only ones reccommended for the smaller bore of the 4.8....any other heads will have valves that are to large for the bore (causing bad valve shrouding)

 

that would be what i was afraid to hear.. thanks

 

get yours P&P'd.... they flow pretty damn good from the factory but with a little work, they can be made a lot better!!! mill them some and work on the runners, ports and chambers and you'll see some gains.

 

how much u wana spend on a set of heads? my 4.8 is comin out in 2weeks