Engine replacement

[Grant Bowker]

The early 235 is a simple replacement, nothing to change.
The later (about 1953 onward) 235 and 261 Chevrolet engines are the same physical size as the 216, fit very well, but usually need an adapter plate and an earlier water pump to make the fan placement correct relative to the radiator. These are simple bolt on changes. The CMP flywheel housing and clutch bolt to the rear of the engine without problem. Some late engines do not use the front mount like the 216 but use 2 side front mounts. This can be changed without great difficulty although you may have to remove the front timing cover and parts to get to the front mounting plate (the plate is the same shape but may not have the holes in place for the front mount as used on the 216).