can anyone direct me where to find part numbers for my pullys for my 1970 ss 396 with a/c.
I want to compare the numbers on the pullys to determine if mine are correct.

Thanks

I don't know the numbers but the crank pully is a 3 groove and the center is larger then a small block, WP is 2 groove and if my memory is correct matches the front two of the crank pully?

I have the engine out of my 70. I will get the pulley numbers later today and send them. I know the water pump pulley is like a 70 SS wheel I think it is AO and some numbers. Will let you know.
Bob

I have some numbers:
Crank pulley-3 groove 3937787-AC A letter " P " is also stamped on this pulley
Water Pump-1-groove 3976059A0
I had a ton of date coded parts for 70s , So I built a SS 454 STA. WGN. It is full of date coded parts, 772 fan, eaton fan clutch, 4 core rad support, 4 core rad, Correct 4 core top plate with welded tab, Date coded pulleys, Org 70 SS Green dash, 70 Cowl Ind. hood hinges, 70 AO SS wheels, 70 (org. LS-5 Air Cleaner), 811-TX water pump, and other stuff.
I just wanted to build a driver and had spare parts. Some people think the wagon is real due to all the date coded parts. I even made a dummy vent line from the LS-5 fuel pump, And attached a piece of brake line and shoved it in the frame rail. And Chevelle people say WOW, Its a Real LS-5.
P.S. The body is a 71, But I had a spare 70 El Camino front clip, The 71 front end was hit. My 70 SS 454 Sta. Wgn. is a fraud and I have papers to prove that it is !!!!!!
Good Luck Bob

thats what I needed thank you!