283 V8 in a 1968 3/4 ton longbed?

[Richard8971]

Hey all, got a quick question. I have a '67 short-step that the previous owner had put in a junk-yard 305 V8 in it. The 305 runs really good, but I had a 3/4 ton '68 long bed for parts. I pulled the motor before I scrapped her. (Don't worry, she wasn't EVEN worth fixing up, she was beat.) I figured I could rebuild the motor out of the '68 while I'm driving my '67 and then do a motor swap once I was finished.

Here is my question... I ran the block numbers and it came back as a 283. It's curious because the 307 was to replace the 283 in '68. Now granted, the motor could have been replaced at some point in the trucks life, but it doesn't look like it had been swapped. The VIN sticker in the glove box was unreadable, so I couldn't go off of the engine codes. Any ideas?

It doesn't matter to me that it is a 283, I will still rebuild it anyway.

Thanks in advance for your thoughts...

D

[slammed1]

the 283 is a small journal crank engine,and also had crankcase ventilation hole beside the distributor hole on the back of the block.
Since alot of rebuild short blocks dont include balancers sometimes deceiphering an engine can be tricky looking at exterrnal features. I have seen 350's with 305 balancer,and vice versa,and also 350/327 with different balancers as well. if the numbers dont produce the answers there are tale tale signs of what year and such your engine is by little details. Dipstick locations,oil filter adapters and more help determine years as well but actual internal dimensions will tell engine size.

[chevy one]

The 283 is a better engine for a rebuild over the 307 anyday!!!