Main Bolt Kit for MGB 3 cap main

Main Bolt Kit for MGB 3 cap mainFar superior to any other main bolts available for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly steel, all ARP main bolts feature a reduced renching head, large underhead radius and rolled threads for the utmost in reliability. The threads are rolled after heat treating which gives them about 2000% better fatigue strength than most main

ARP has developed the “Pro” Series Wave-Loc bolts

The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating

HIGH PERFORMANCE SERIESHigh Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates theneed for valve train removal to facilitate cylinder head retorquing

Applications include

Specially drilled “NASCAR” models are available for those who wish to safety wire their header bolts to prevent loosening

ARP has you covered with our 180

Available in black oxide finish 8740 chrome moly or polished stainless steel with hex or 12-point nuts

It is the most accurate wayto determine the correct pre-load in the rod bolt

all ARP main bolts feature a reduced renching head

Both feature an exclusive

each stud is placed verticallyinto special racks and precisely heat-treated to 190

heat-treating to 190