1971 Detomaso Mangusta Crankshaft Bolts

Far superior to any other main bolt kit offered 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, all bolts feature generous under-head radius and rolled threads for the utmost reliability. The threads are rolled after heat-treating, which makes them about 2000 Percent longer fatigue life than most main bolts, which are threaded prior to heat-treating.

Product Features:

• Forged From Premium Grade 8740 Chrome Moly Steel
• Generous Under Head Radius And Rolled Threads For The Utmost Reliability
• Reduced Wrenching Head
• Designed To Meet The Exacting Standards And Demands Of Professional Engine Builders
• 2-Bolt Main
• Front or Rear Sump
• Includes Oil Pickup Standoff Bolt
• 180,000 PSI

As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 Pounds Per Square Inch bolts that let you exert maximum clamping force. Special features comes with 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:

• Ultra Strong Bolt Rated At 200,000 Pounds Per Square Inch
• Professional Quality Fasteners
• Delivers ARP Quality And Reliability
• Made In USA
• 2.05″ Underhead Length
• Ford 289-460 (except 351C)
• Sold Individually
• 200,000 PSI