The engine mounts are from a 1970 I think. The rest is all from the 65. My engine had TA shorty headers and one tube on the drivers side had to be relocated. Stock manifolds should clear. Had to use a Lockar adjustable transmission dipstick tube. You also have to use a center sump oil pan to clear the steering on a 65. The only real problem is hood clearance. I used a TA SP1 and there was no clearance. A stock or maybe and Edelbrock would be a better choice. One thing to remember is that these cars were not built to handle the power that a modern 455 can make. I'd keep the engine on the mild side. Jesse