Your engine was built in late September to go into a 1958 model year passenger car with a Turboglide transmission...it will have side mounts.

The 1957 283 block casting number is 3731548...it does not have side mounts.

Your 235 has front and bell housing motor mounts if it's still stock. You'll need to bolt or weld in a side mount crossmember like this one sold by Summit to install the 283/TH350 setup.

https://www.summitracing.com/parts/...h_OBrDqCWjmQ2Qt2HeJyJiout1EaAg57EALw_wcB

Mike B smile


Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
+++++
Silver Spring, MD