Buick 350, 8740, black oxide, hex
Head Bolt Kit full set does both heads
only fits Buick 350 engines
with bore size 3.800 vin h,j,x
7/16 thread
Kit #: 120-3601
installation method for high performance ARP cylinder head bolt kits.
180,000 psi 7/16 diameter thread
torque to 70 ft pound. using 3 equal steps
with ARP ultra-torque fastener assembly lubricant