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I own a 81 vette with a ZZ4 engine. My crank,water pump, alternator,ps pulleys are the originals. I thought about changing to aluminum pulleys. March lists a set of underdrive pulleys specifically for vettes 71-82. My question is does anyone else sell standard aluminum pulleys that will fit? Should I change to the underdrive pulleys? No one else lists their pulleys applicable to vettes. I don't want to order something that won't fit. Thanks for any info...
Dirt,
i have the March setup on my ZZ4 (crank, water pump and alt). i did not change the ps. the fit and finish of the march is outstanding. i went to a local speed shop and got them for much less than the mail order ones and there was no wait. i dont know if there is another company making them :confused: sorry it took so long for somebody to reply but i just got back from vacation.
mike
edit: i plan on doing the 572 cu :smash: in swap with a 700r4 and a gear venders overdrive unit in my vette a soon as they start selling them to the public. i also want to go to a one belt system so if you have not have any by then i will give you first dibs on em. i want to have the swap finished before the next hot rod power tour
I have two pulleys from Summit, and one from Zoops. I got the Zoops one because it was the only 2 groove aluminum alternator pulley I could find. The bad thing is it looks so good that it makes the Summit ones look bad. You might want to see if March sells a non-underdrive setup. I read on the Sterwart water pump website that underdriving HP gains are minimal.
Hey Mike,
Thanks for the info. I'm not sure when I'll buy them. Right now I'm consumed in thought about a transmission and rearend gear change. Can't decide between a Richmond 5 speed or a 700r4. Let me know when you decide to sell. :cheers: