Big Block ac compressor pulley diameter

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Jan 17, 2012 | 10:48 PM

1970greenLS5

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Big Block ac compressor pulley diameter

Anyone know what the correct compressor pulley diameter is for a big block? My car is a '70. I have heard of a 5 1/8" and 5 5/8" diameter pulley's. Do you know if those are correct for corvette, and which is for small vs big block? thanks, Steve

Jan 19, 2012 | 09:32 PM

1970greenLS5

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Any info on '70 or other year vette compressor pulley diameter would be appreciated - thanks! Steve

Jan 20, 2012 | 10:46 AM

damoroso

Burning Brakes

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From: Middleburg Florida

If memory serves, there weren't different compressor pulleys for big blocks...the same compressor (and pulley) was used on everything. They were'nt even vette specific.

Jan 20, 2012 | 12:51 PM

Easy Mike

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From: Southbound

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Quote:

Originally Posted by 1970greenLS5

...Anyone know what the correct compressor pulley diameter is for a big block?...

Not sure of the diameter and that may not be important. The assembly instruction manual (AIM) will list the original GM part number for your pulley. Go with the correct part number.

The AIM will also list the part number or the correct AC belt.

Jan 20, 2012 | 04:33 PM

Tom454

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From: Raleigh North Carolina

I have a 1970 LS5 with factory A/C. Exactly which Pulley do you need me to measure?

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