any difference in 4.8l heads and 5.3L heads?
08-19-2004, 09:25 PM
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any difference in 4.8l heads and 5.3L heads?
title says it all guys. is there any difference in the 4.8L heads compared to the 5.3L heads. thnaks alot. larry
08-19-2004, 09:41 PM
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ok, so i could put 4.8 L heads on my camaro (2001) and they would be better then the 5.3 L heads?
are the vlaves and stuff like that the same?
are the vlaves and stuff like that the same?
08-19-2004, 09:50 PM
#4
Originally Posted by camman
the compression ratio would be different because of the difference in bore size 4.8 should raise compression slightly on a 5.3
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HomerSimpson (11-17-2021)
08-20-2004, 05:37 AM
#7
I think the 4.8's and 5.3's have a different casting number. Some of you guys with a 4.8, look at the casting numbers and see if they are #706. I have a 5.3 and mine are #862. The last set of #706's I had, 4.8 was stamped on the bottom where the lifters go.
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HomerSimpson (11-17-2021)
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08-21-2004, 11:13 AM
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Originally Posted by Dark Halo
the only difference in the 2 motors is the rod length and the crank stroke.
as for the heads, the numbers on my '02 4.8 yesterday were 862, and they were stamped 4.8. however the numbers on my buddy's '01 4.8 we pulled 2 weeks ago were 706. did the numbers change for the model year or something?
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