I am working on installing the poston
headers for the 340 on my 67 skylark. I have now
encountered 2 major problems, and I am totally at aloss for what to do. The first problem is that the header does not allow enough clearence between itself and the frame (right beside the exhaust ports) and therefore I am worried that when the engine is started, the engine torque will slam the header into the frame there. In fact, we even bent the one pipe on the header slightly at this point as well as grinding part of the frame there. Still, there is only about 1/4 of an inch of clearance. The second problem is that the transmission crossmember will not allow the
header to fit either. The header will not fit
underneath it by about 2 inches because of the flange.
I would love some help!
1967 Buick Skylark 4dr hardtop with a 430
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