New 408/727 Vibrations

Thanks for all of the replies, they are appreciated. If I pull a motor mount shim one of the head tubes is so close to the steering box it will bang it when the engine rocks side to side with acceleration. It wasn’t like that before I dropped the engine in; I only needed one shim with my other 360. I don’t have a tranny mount picture but I’ll include a picture of my passenger side mount, it’s not very good but it’s the best I could do with the headers in the way. I checked all of the spark plug wires for proper location and checked the headers for contact with the car and I checked the the timing. I emailed Mancini Racing a picture of the drivers side, squished engine Mag mount they sell. Shockingly, they never wrote me back. Here is a picture of the passenger side engine mount. I don’t have a picture yet of the tranny mount.