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Your cart is empty.Mr. Gasket Big Block Chevy Harmonic Balancer Bolt Kits feature a high hex head that prevents socket slippage when adjusting valves or rotating the engine to degree in a cam. Designed specifically for big-block Chevys and heat-treated to Grade 8 specs, these bolt sets come with extra-thick parallel-ground washers that deliver a smoother, more accurate, more uniform torque. They're ideal for high-performance, drag race, and circle-track applications and come complete with split lock washers to prevent any loosening caused by vibration.
Jason
Reviewed in the United States on October 16, 2023
Was too short.
magnum
Reviewed in Canada on December 17, 2021
Washer is nice and thick for hp engine!
jason
Reviewed in the United States on February 22, 2020
Says it's for big block chevy but was too small for my 454.
Fearless Performance
Reviewed in the United States on March 18, 2019
Great option for a cheaper price... for perfect
oldcarguy
Reviewed in the United States on September 30, 2015
NIce kit but only gave 4 stars due to the fact they will not fit a Pontiac 350 despite what the Amazon "fit chart" says. These are for a Chevy big block only. I'll hang on to them though, I'm sure I'll use them on another project in the future.
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