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I bought a rotted out but running and driving 66 wildcat for parts for my project. This was a 401, didn't run great but was able to cruise with it a bit. car idled ok. When I brought the engine in for rebuilding the block was bad. Found a 425 block and did a complete rebuild to stock. Used the...

I would like to replace the oring for the filler neck on my 66 wildcat fuel tank. I have not been able to find either the oring or a part #. Can anyone help?

How do I identify the correct front drums for a 66 wildcat? I see some drums online but don't know how to be sure they are correct.

Will the top end parts from a '66 401 fit on a 425? I mean heads, intake, exhaust manifolds. I'm fairly new to the nailhead world, but it seems the 425 is basically large-bore 401, right?

kbalser submitted a new listing: 66 401 crankshaft - 66 401 crankshaft View the entire listing here...

I'm rebuilding a 401 from a 66 wildcat. Basically a stock build. I want to run it on pump gas, which around here tops out at 91 octane. Should I be looking for some thick head gaskets to reduce the compression?

I just purchased a 1938 Buick special and will look forward to reading posts about it.