I can't believe nobody has brought up Chrysler's conical lock washers. Chrysler has used them on both small and big block engines. Almost all of the front end accessories of both engines use them. The motor mount to K member bolts use them, the motor mount to motor mount bracket use them, solid fans use them, big block distributor hold down bracket uses one. Most of the bolts that have the washer on them are conical washers. Please use the correct washers at least on the front of the engine. Hardware store bolts and washers have no place on a Mopar engine!
Hardware store bolts come in 1/4 inch increments, a lot of Chrysler bolts come in 1/8 inch increments. So if you use hardware store bolts, you will probably have to use extra washers. Years ago, I helped a friend work on a 70 Road Runner, He had a 440 built with the Stage V Hemi head package. He had one of his Chevy buddy assemble the engine. He used hardware bolts and washers, mainly on the water pump and water pump housing, most of the bolts had a stack of at least 3 washers. It looked like HELL!!!! It still dynoed at 700 horsepower, even with the wrong bolts. :lol:
