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Standard bolts for headers for most makes of heads. Heat treated steel.
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Do these fit the chev/gmc 4.3 v-6?
Asked on 8/18/2011 2:29:05 PM by Jon C from Kennewick, Wa
The 4.3 should take the same bolts as the small block V8. Depending on header or manifold usage would determine the length required. 3/8 x ¾” long work for most tube header applications and the cast manifolds will require a longer length bolt. We also offer a stud kit number 1011001403 for those special applications and for the applications where the bolts tend to work loose or lose the torque we offer Percy’s splitlock to keep them locked in place.
Answered on 8/19/2011 8:58:19 AM by John from Speedway
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