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Pontiac of the Month

brandyv73's 1968 Firebird

2019 June
of the Month

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Hello. My name is Brett and Im new to the club. I am putting back together a motor and having issues lining up water pump and crankshaft pulley....off by about 1/4". The old pulley blew off into the bushes never to be found so I could match up. 

Any insight?  Thanks inadvance

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:welcomeFP:

Unfortunately, I do not have any information on your pulley but hopefully one of the other guys will be along soon who can answer ;) 

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Welcome to FP.

I'd reach out to Frank's Pontiac Parts and see what they have on hand. I'd be surprised if they didn't have pulleys for a 389 or 421.

https://frankspontiacparts.com/

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Not using a Chevy water pump pulley are you? That will give you the difference you mention. If you had the A/C pulley and spacer on the crank, and didn't put it back on, that will give 1/4" the other way.

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