Moroso SB Chevy Cam Stop Button and Rettaining Plate - SB and 90 V6 Chevy w/ Late Style Flat Timing Cover Oil Filter Adapters It allows you to bleed

It allows you to bleed the bearing from outside of the bell housing

1970-1973 Mercury Montego Base CID 351 Naturally Aspirated GASVehicle Applications: 1970 Ford Fairlane 500 CID 351 Naturally Aspirated GAS

1980 Chevrolet Camaro Base CID 231 Naturally Aspirated GAS

Not Emissions Legal

Moroso SB Chevy Cam Stop Button and Rettaining Plate - SB and 90 V6 Chevy w/ Late Style Flat Timing Cover Oil Filter Adapters It allows you to bleedProfessional engine builders are familiar with camshaft "walk" when excessive end play produces erratic spark timing and the timing chain gear "eats" the timing cover Moroso solves the problem with a highly wear resistant button mounted in an aluminum holder and bolted to the cam timing gear by way of a retaining plate The button assembly does not allow the cam to "walk" forward, stabilizing ignition timing and preventing costly engine repair Moroso