what 6 is in my 65

Hello all, while cleaning up trees from "Irene" I had to move the 65 parts van. I never tried to start the motor. Well I hot wired the motor and dumped some gas in and wola she fired up and runs pretty good. Just curious is this a 230? or a 250? How do I tell the difference. Thanks in advance Bob

If it's factory, I think it should be a 194" (3.8L) six.
Albeit, only because I'm the new owner of a '65 GMC Handi-Bus Custom. I don't know much about these gems yet, but I'm in the weeds right now trying to dig up info/parts/guidance...etc////

Casting numbers are on the passenger side just below the rear lifter cover..

Thanks Wopman, I have a late 65/early66 230. Now I just need to buy a decent van that needs a motor LOL Bob

simpleman wrote:If it's factory, I think it should be a 194" (3.8L) six.
Albeit, only because I'm the new owner of a '65 GMC Handi-Bus Custom. I don't know much about these gems yet, but I'm in the weeds right now trying to dig up info/parts/guidance...etc////

wow, that was a backwards guess. I'm looking forward to running the numbers on mine.

whopman wrote:
Casting numbers are on the passenger side just below the rear lifter cover..

Thanks Wopman, I have a late 65/early66 230 as well, thanks for the info.

Glad I could help !