Ok....I've got 1.75 inches of thread showing below the collar....looks to be slighlty less than half of the threads on the shock
So...based on what you guys are telling me, I should have the 525's...
Its an iron 434 small block, aluminum heads etc....nothing major up front to add additional weight.....why the hell would I need the BBC springs?
Last edited by DRJDVM's '69; 07-19-2011 at 04:01 PM.
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