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Exhaust manifold bolt spacing
Anyone know what the precise center-to-center bolt pattern is for a sbc gen1 exhaust manifold (square ports)? I'm CNC machining a fixture and would like to put the hole pattern right on the money. Couldn't find a blueprint anywhere but these specs must exist somewhere.
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66 Custom Camper 327 AC PS PB
66 C20 292
76 C25 Sierra Classic
76 C25 Sierra Grande
76 Camper Special
77 Sierra Grande
02 Suburban - the DD
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