The 1960-62 Chevy 235's and 261's used a different style molded one piece front motor mount in the same place as the earlier multi-piece Art Deco & AD front mounts. It bolts to the front engine mount plate and cross member with a different bolt pattern than the AD ones and also stands a good bit taller than the AD series front mounts.

Here's a thread that discusses the 1960-62 235/261 front motor mount to help see what it is.

Here's a really on-topic thread discussing what is needed to convert the 1960-62 235/261 front mount to the Art Deco & AD style mount.

I'm going to have to do the same process when I go to install my 1962 261 (heading out for rebuild next week) into my '51 3100.

Hope this is helpful. wink

~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)