I was thinking the motor and head was from the same vehicle. I don't think so now, if date codes on head work the same as on the block. The block casting tells me it is a 235 built between 58 and 62 and the block date code tell me it was made Feb. 05 1958 on conv 3. The motor has been in the back of my truck since I bought it, laying on it's right side so I couldn't read the castings. Well I finally unloaded it and the head date code is D242 so what April 24th 62? The casting # on the right side of the head is 3836848 with GM 28 under that. On the left side is three groups of three #'s 860-848-850. So this is the 848 highest compression head? Does the GM 28 or the 860 or 850 tell us anything? Oh yea it looks like all the push rods are the same length except two, they are all right at 11" with two at close to 11.25? Thanks in advance
