ARP 145-5201 Main Bolt Kit for Mopar 426 Hemi ymm_1 Dart 1961-1976

Dart 1961-1976

as well as for oval track racing and aftermarket street and strip axles

000˝ Grip Length n/a˝ Thread Diameter-Pitch 5/16-18 Grip Diameter 5/16˝ Wrenching 3/8˝ Head Height 0

To take the Slip-On Race Line (Titanium) to the next level of its tuning potential

ARP 145-5201 Main Bolt Kit for Mopar 426 Hemi ymm_1 Dart 1961-19762 Bolt Main Bolt Kit by ARP. Far 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 wrenching 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