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**kwmech** · 04-16-2018, 11:17 AM

The big block mounts you are showing are 2wd application and will not work with your 4x4. The steel frame mounts are not bent correctly to fit the lower cushion. All you can really do is use the small block cushions the way you had it before and maybe put a torque strap on the engine if you are worried about tearing a mount, Looks like you moved your engine forward for the big block placement. If you have the time I would replace the 3/8 bolts frame/x-member bolts with 7/16. The extra weight and torque will loosen them up. Don't know why, but they do. I just finished moving a member forward over the weekend on a K5.

04-16-2018, 11:17 AM	#8
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,390	Re: Big block engine mount question The big block mounts you are showing are 2wd application and will not work with your 4x4. The steel frame mounts are not bent correctly to fit the lower cushion. All you can really do is use the small block cushions the way you had it before and maybe put a torque strap on the engine if you are worried about tearing a mount, Looks like you moved your engine forward for the big block placement. If you have the time I would replace the 3/8 bolts frame/x-member bolts with 7/16. The extra weight and torque will loosen them up. Don't know why, but they do. I just finished moving a member forward over the weekend on a K5.