Hi everyone, just making enquires would a 401 nailhead intake manifold fit a 364 nailhead. If not am I able to do some adjustments to the intake manifold. cheers
According to my Weiand catalog that would be a WB6 - 6 carburettors; Fits all 53 to 63 Buicks Part No. 7232 $78.50 in 1966 I've got a 62 Nailhead and it's a 401 so I guess the answer to your question is YES
Stock intakes don't interchange, but that 6x2 will with some minor linkage adjustments and cross over tube changes.