Flywheel Bolt Kit fits GM LS Series, M11 x 1.25 Thread x .880" UHL BA Its best-in-class material purity outperforms

Its best-in-class material purity outperforms competing lead alloy models

traction control

Billet Alloy bracket is engineered to sit directly over the spark plug on the correct angle to ensure correct stalk alignment over the spark plug to eliminate spark leakage

Soft spring – Fits all Mach 2

Flywheel Bolt Kit fits GM LS Series, M11 x 1.25 Thread x .880" UHL BA Its best-in-class material purity outperformsArp Replacement Bolts Are Forged From Aerospace Alloy And Heat Treated Prior To Thread Rolling And Machining. With An Exclusive, Flat, 12 point Head Design And Larger Than Stock Shank Diameter These Bolts Deliver Increased Strength And Improved Flywheel And Flexplate Retention. Rated 170,000psi (high perf.) And 190,000psi (pro series) Tensile Strength.