Water pump zinc alloy steel pulley bolts kit for Chevy small block 265-283-302-305-307-327-350-400 engines. The bolts in this kit are 5/16-24 x 3/4 flat head socket. This bolt kit is used when you remove fan and stock pulley and install an aluminum pulley with countersunk bolt holes. 4 pieces.
Recommended for the CHEVY SMALL BLOCK WATER PUMP PULLEY BOLT KIT - ZINC