The 8898 is a billet aluminum water pump pulley. Its designed to work with our 8896 LS water pump. This pulley is a universal type design that will work with belt offsets of most GM Gen III & Gen IV small block V8 engines (LS LM LQ & LR).
The 8899 pulley is a bolt-on, billet pulley designed for Edelbrock high Performance'street, heavy duty aluminum water pumps #8893 & #8894 for GM LS cars (except Cadillac CTS-V).
