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gear-reduction design
It will cut valve spring removal and replacement time to around 1-hour
Technical Note: Production height valve covers and valve covers with baffles will not clear most stud girdle applications
Just pop a set of these on PROFORM hardened shaft P/N 66867
Upgrade your carburetor with PROFORMs new race-oriented billet metering blocks
Engine Crankshaft Turning Nut Fits Small Block Chevy Engine Crankshafts Proform Cap/Rotor gear-reduction designThis heavy duty crankshaft turning nut easily installs through the harmonic balancer and into the end of the crankshaft with the included grade 8 bolt. Once that's done, your balancer is held securely, and you have turning nut that is ready to rotate whenever necessary. Features: Heavy Duty Model Fits Small Block Chevy and V 6 Engine Crankshafts Made from High Quality Steel Black Oxide Finish 1 inch Stud Length Sold Individually
