67 L89 Water Pump Pulley

[Jerry Clark]

I am having a difficult time matching up water pump pulleys to crank pulley on my 67 L89 engine.
Most vendors show early and late versions of the water pump pulley but only one crank pulley. Would there be any difference other that the P/N ?
I always appreciate the help
jer

[Joe L.]

Re: 67 L89 Water Pump Pulley

Jerry----

As far as I know, the only water pump pulley used for 1967 Corvette 427 applications (except A/C) was GM #3906656. This is a 2 groove pulley of 7-1/8" OD. It's still available from GM, but lists for about $130. The crank pulley was a cast iron pulley of GM #3863108. It's also still available for about $125, GM list.

[Joe L.]

Re: 67 L89 Water Pump Pulley

Jerry----

As far as I know, the only water pump pulley used for 1967 Corvette 427 applications (except A/C) was GM #3906656. This is a 2 groove pulley of 7-1/8" OD. It's still available from GM, but lists for about $130. The crank pulley was a cast iron pulley of GM #3863108. It's also still available for about $125, GM list.