Would a set of 98 heads fit on a 01 ls1 block i know the valve covers are differ but is there anything else?/????

 

i don't think so. they have a different bolt pattern.

 

they will bolt up but the vavle covers have the perimitter bolts instead of the the 4 in the center. also i think that the coils might have a different bracket also but not for sure. they will bolt right up to the block and intake and everything else though.
nick

 

thats what i was thinking