Engine Timing Chain Cover Buick 400-430-455 67-76 OEM Style Die-Cast w/Seal Proform Engine Crankshaft Turning Socket Tool one for flat tappet or

one for flat tappet or hydraulic cams

8L V6 ODD Fire engines

Calculate the difference and check the manufacturer specifications

and the other for roller cams

Here is the quick and dirty way to match weigh your small block Chevy connecting rods

Engine Timing Chain Cover Buick 400-430-455 67-76 OEM Style Die-Cast w/Seal Proform Engine Crankshaft Turning Socket Tool one for flat tappet orThis die cast timing chain cover is 100 percent new and optimizes the OEM design, and will accommodate double roller timing chains. It fits Buick 400 430 455 V8 Engines. It has a 1 Piece OEM Design and made from Quality Die Cast Aluminum with a Plain, Natural Finish. Crankshaft oil seal included. Sold individually. Product Details: Engine Timing Chain Cover Fits Buick 400 430 455 V8 Engines Will Accommodate Double Roller Timing Chains 1 Piece OEM