Need Part Number Info
Thread Size Socket Size 1Pc 2Pc 10Pc SS per Pc
7/16 x 1/2" 300-8303, 300-8323, 300-8333, 400-8303
7/16 x 9/16" 300-8374, 300-8384, 300-8394
7/16 x 1/2"** 300-8375, 300-8385, 300-8395
** .6 Flange
page 82 of ARP's catalog
Don't know which ones you need of these for your heads but I hope that gets you closer
7/16 x 1/2" 300-8303, 300-8323, 300-8333, 400-8303
7/16 x 9/16" 300-8374, 300-8384, 300-8394
7/16 x 1/2"** 300-8375, 300-8385, 300-8395
** .6 Flange
page 82 of ARP's catalog
Don't know which ones you need of these for your heads but I hope that gets you closer
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Brandon Wittmer
General 1967-2002 F-Body Tech
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Dec 7, 2014 12:15 PM



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