Was the 3836848 the same for all years? What changes between 56-63 (between 56-58, actually) caused the higher compression ratio?

Is it correct to say that blocks were different and heads the same on the high-pressure and low-pressure car 235 engines in 1953? The crankshaft was certainly different.

It also looks like the car and truck 235s in 1953 used the same head (is that right - 18 bolts on car and truck heads)?

Also, it looks like the low-pressure car and truck 235s used the same style of block (maybe with different casting-codes)?


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.