66 Cuda 360 questions

I assume that since you're bolting a 360 into this car that you have at least some interest in performance (acceleration, etc...)=P~

If that's true, do yourself a favor and find way to buy a set of headers for this car. The 360 manifolds work okay in their original application, but I am pretty sure they won't fit into the engine compartment (too wide) and even if they do, getting a "head pipe" onto the driver's side manifold might not be possible.

I "dropped" a 1971 340 into a '64 Valiant and left the manifolds on the engine. The manifolds hit the inner fender panels solidly on both sides when the engine was in place on the mounts. When I stubbornly refused to remove them and took it to a custom exhaust shop to have the head pipes made, the technician gave up after about half an hour, saying that there was no way... It was a 4-speed car, too.

You might consider that problem before you toss that 904.

TTI, Dougs and Spitfire are 3 companies that make under-the-car headers for early A-bodies with L-A/Magnum engines. Somebody probably makes fenderwell headers for these neat little cars (which is what I ended up with), which alleviates the clutch-linkage problem.... I don't know who might make them.

Good luck with this; when you stand on the "loud pedal" for the first time with that 360 in there, it will all have been worth it; been there...
done that!!! :cheers: