ARP 134-3610 Head Bolt Kit - Post-Sept 2003 LS

ARP 134-3610 head bolt kit for later LS engines using equal-length main head bolts (typically from October 2003).

This is the later bolt pattern; it is not the staggered-length ARP 134-3609 kit used in earlier LS1 blocks. Check the actual engine block and removed bolt lengths before ordering. LSA and LS9 applications require their own fastener check.

Supply only. Contact PSI Performance if you need help confirming fitment.