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Gen3 heads fit on gen4 but chances are your compression is going to be higher. Gen 4 heads will NOT fit Gen 3 because you'll need a 4.0 bore.
Google is your friend Amigo.
Gen3 heads fit on gen4 but chances are your compression is going to be higher. Gen 4 heads will NOT fit Gen 3 because you'll need a 4.0 bore.
Google is your friend Amigo.
That's not completely true. Not all Gen IV engines have LS3/LS7 heads. The GEN IV 6.0L and the 5.3/4.8L engines use cathedral port heads and can be used on the LS1/LS6/etc. GEN III shortblocks.
That's not completely true. Not all Gen IV engines have LS3/LS7 heads. The GEN IV 6.0L and the 5.3/4.8L engines use cathedral port heads and can be used on the LS1/LS6/etc. GEN III shortblocks.
Aren't cathedral heads gen3? Like I said gen 3 heads will work on gen 4 motors.
6.0 lq9/4 iron blocks gen3 are a 4.0 bore and yes I left that out sorry they can use gen4 heads.
Not really. Gen IV is typically '05 and up where the reluctor wheel, cam sensor, etc changed. LS2's are considered Gen IV engines, and they utilize cathedral port heads.