Exhaust manifold bolt ... advice needed!
I recently purchased a 1997 Ford Class A with a 460 engine. The exhaust manifold issues have been well documented and so I decided to put Banks headers and exhaust on it. All my manifold bolts seemed ...
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My 1990 Mh had the 460. Manifolds warped and sheared 3 bolts right at the head and eventually had a small exhaust leak. Had to use a RT angle drill and then a tap.
I replaced the manifolds, and Ford's "improved" manifold had slots for the bolt holes to allow the manifold to expand and contract without shearing the bolts. Did not use a gasket..
FWIW I vote for PB Blaster to soak the bolts..
I replaced the manifolds, and Ford's "improved" manifold had slots for the bolt holes to allow the manifold to expand and contract without shearing the bolts. Did not use a gasket..
FWIW I vote for PB Blaster to soak the bolts..
