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Anyone got a pic of what the top of the intake manifold bolts should look like? Are they different since they are mounting to aluminum not cast iron? Thanks



Intake bolt - 3/8-16 x 1 1/2", 9/16" Hex,
"TR" head marking , Black Phos



And, when used on the Edelbrock aluminum manifold, they used washers under the head.



Ans they weren't lock washers !