Flywheel Bolts

The MR. GASKET Flywheel Bolts (SKU MRG912) are precision-engineered fasteners designed for engine builders and mechanics who demand reliable crankshaft-to-flywheel assembly on American V6 and V8 platforms. This six-piece kit addresses a critical fastening point where vibration, thermal cycling, and rotational forces demand exceptional tensile strength and corrosion resistance. Whether you're rebuilding a carbureted 350 or a modern truck engine, proper flywheel bolt specification directly impacts engine longevity and drivetrain reliability.

Manufactured from high-grade steel with a black oxide finish, these bolts feature a 7/16-20 thread pitch and 0.906-inch length—specifications that match OEM requirements for GM and Ford V6/V8 applications. The black oxide coating provides superior corrosion protection compared to bare steel while maintaining a clean, professional appearance in engine bays. Hex head design ensures secure torque application without cam-out or rounding, critical when fastening components that experience sustained rotational stress and occasional thermal expansion cycles typical of heavy-duty or high-RPM operation.

Mechanics, engine shops, and serious DIY rebuilders benefit most from this kit when performing complete engine overhauls, crate engine installations, or transmission rebuilds where factory fasteners may be suspect. Proper torque sequencing (typically 65–75 foot-pounds depending on engine platform) requires quality hardware that won't strip, shear, or loosen under load. Always verify thread pitch and length compatibility with your specific engine block and flywheel before installation to ensure proper engagement and clamping force.