Which Octane Gas For 502
08-30-2009 | 10:17 AM
#3
Charter Member #232
Joined: Oct 2000
Posts: 18,417
Likes: 6
From: Carlisle, MA USA
Yup 87 is all you need. I ussually try and run 89 or 91 in mine just because the gas sits in the tank some times for a while and I want to make sure that the octane does not drop with the Ethenole. Not sure if this is sound thinking or not but figure it can not hurt?
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09-02-2009 | 10:17 AM
#4
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Joined: Feb 2002
Posts: 6,656
Likes: 20
From: Lake Michigan
GMPP has 3 different 502 crate motors.
This should be the one you have...
http://www.gmpartsdirect.com/perform...ATID=1099.html
This should be the one you have...
http://www.gmpartsdirect.com/perform...ATID=1099.html
Last edited by Back4More; 09-02-2009 at 10:19 AM.
