Who will custom make a polyurethane motor mount from a broken 67 400-455 motor mount ? My right one just broke and the left side has a stupid chain already. Now the whole car shakes so bad I can't drive it any more. (I have a poly mount on the tranny). Would that tuff ole windshield urethane glue them back and hold ?
I doubt if any glue would keep your rubber mounts together. Is the mount constructed in such a way that you could make a UHMW (a tough plastic) cushion that would replace the rubber in the steel parts of your original motor mount? It needs to have a through bolt to keep the upper and lower metal parts together. I've done that one a few times as well as make a new cushion from 1/2" to 1" neoprene rubber. The rubber cushions were used on the rear (block-mount) motor mounts on a flat Plymouth six in a 50 Plymouth coupe. As well as replacement biscuits in a 48 Ford style motor mount used in a 455 Buick to Deuce frame swap. You can get both neoprene rubber and UHMW in various thickness at industrial rubber stores and the UHMW is also available a plastic supply houses. The UHMW (stands for Ultra High Molecular Weight) cuts with a saw and drills easily. The neoprene cuts easy with a razor knife and if round biscuits are wanted a hole saw works well. Far as drilling an accurate sized hole in the neoprene goes, drill a 1/4-3/8" pilot hole then stick the biscuit in the freezer overnight. Have your drill press and clamping setup ready to go in the morning, clamp and drill the frozen neoprene and you'll have a very clean hole. Fwiw - running say a 1/2" drill through un-frozen neoprene will not give you a 1/2" hole. The rubber stretches before it cuts. Here's a photo of the UHWM biscuit in my 31 on 32 frame rails roadster. The picture shows an aluminum load spreader plate on top, but your really don't need it. I do have a pair of UHMW motor mounts on my 32 roadster with 462" BBB and no vibration problems. In fact it runs very smooth and has less vibration than it did with the 48 Ford style re-pro rubber mounts.
TA performance I think I would call TA performance and I think they can recondition them for you since they are different for 67s.
Brand new rubber mounts are available from most parts stores. You can reinforce them with a couple of bolts running thorugh the backing plate.
If you go to any auto parts store and ask for engine mounts for a '67 GS400 they will do one of three things. 1st, they will look up some numbers and give you the '68 + BBB engine mounts or 2nd, they will be more knowledgeable and tell you that the '67 400 engine mounts are not available. or 3rd, they will tell you to put a chebby crate engine in it. Basically you can't get brand new engine mounts for a '67 400. They are not being sold aftermarket since they are a one year item only. The '68's and up are different, trust me on this. But you can get your existing ones re-volcanized at www.kanter.com and I think they charge around $60. Good luck!
68` I used 68 GS 400 mounts in my 67 before. You will need to cut the second hole off the back mount plate to fit over the mounting pad. Plus you will need to use a nut on the back side. I made them fit I am sure you can to if you don't mind the none original look. Clyde
TA Performance lists them new in the catalog I have. I don't know how old it is , but I would call Mike.
I have a pair of '67 Riv 430 mounts in great shape that I could sell you...............if you want them send me a PM. :bglasses:
The ones in the TA catalog for the `67's are rebuilt. The best way in the long run, a little more work though, is to go with the TA FRAME pads for the `64-`67. They were designed to use the more commonly available 455 motor mount, then you won't have to worry about availablity issues in the future. I think there are some poly's in the works also. Dave
How does the engine sit with the '68's? does it sit higher or the same? If it does sit a little higher that might be good for me since I'm having header clearance issues and if I could get 1/2 more height then that would be great. I am also considering buying those new frame pads from TA also, but if what you did works good then I'll save some $$ :beer Thank you,
With the TA pads and mounts for a '67 the engine will sit up about 1" higher. Put them on mine when I rebuilt the engine last year. The only problem will be getting the bell housing bolts back in since it also changes the angle to the tranny. Was able to accomplish with only minor gentle persuation. They used to be sold as a big block conversion kit and included bolts and washers.
68 mount height I'm sorry but I don't have the car anymore to tell you the height. All I can remember is they were 68 mounts with the 2 holes and I just cut off the second ones. I think they were the same size, maybe a tiny bit taller than the Riv mounts that were on the engine, but I didn't have anything to go by as this was a 430 trans into a special with original 67 GS 400 frame pads. I also didn't use headers either. My current project I went with the Stage 2 heads to hopefully avoid the header issue. Sorry Clyde
