bigdan1

I have an LS1 that is still running ok ,with 241 heads on it ....
Just got an LQ4 ( 65,000 miles ) for a good price ....317 heads on it

I want to swap heads on the LQ4 for better compression & power .


I searched around , some put modified 5.3 vortec heads ( 61cc )on an LQ4 ,
some put LS1 241 heads ( 66cc ) on a LQ4,

Should I go the expense of buying a set of 5.3 heads or keep my 241 ?

I could shave the 241 too if have to ! ,

put simply , are both heads ok ?

advices please !

thanks ,

Dan

HCI2000SS

iTrader: (2)

For reference I'm running PRC 5.3 heads on a LQ9 with 11.5 compression and it runs really strong for what it is. As long as you can get compression up with the 241's they should perform just as good

MuhThugga

I would keep the 241s for the bigger valves and just have them cleaned and milled .020-.030" to bump compression.