Quote:
Originally Posted by Stocker
The OEM 7-blade fan on my K20 with factory A/C might be the best possible choice. Mine is 18" diameter but your '87 might be different (and some big-blocks use a 19.5" fan) so the first step is to measure yours. Original fans sometimes come up for sale on the parts board here. Aftermarket suppliers like Summit, Brothers, and Classic Industries are worth a look too.
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Cool, I'll keep my eyes peeled for an original fan and then just have that NAPA heavy duty clutch ready to go once I find it. I believe my current fan is around 19 3/8"-19 1/5" OD.
Thank you for the info!