Bolt size request - exhaust flange to manifold

[pipeline010]

Put a duff dual exhaust system on my stock 69-302 with stock manifold and threw a bolt (somewhere). Seals pushed out on BOTH sides and now I'm trying to replace seals.

Having a bugger of a time making the right fit on the missing bolt. I stuck with my stock bolts on the replacement, so no idea what the stock size is.

Is this the right one? Before I order a THIRD SET that doesn't fit....


https://www.summitracing.com/parts/rnb-03135/overview/make/ford

Thanks.

edit: required size is 7/16 stud bolt.
previous bolt was worn down and sizing was off.

 

[Steve83]

Those fit most later smallblock exhaust manifold flanges. I assume they'd fit these older ones. Can't you just measure what you've got? What exactly was wrong with the previous 2 sets, and what PN/link were they?