by Guest Wed Nov 23, 2011 4:48 pmfound this number 3877178 with the letters GM below the numbers . behind the distributer..does it describe the engine size ?? it was stamped on the motor.
3 posters
1965 g 10 motor size ??
whopman- Number of posts : 387
Location : Columbus, Ga
Registration date : 2010-04-01
It could be a 230 1966-1970 or a 250 1966-1979. The only way to know for sure is by the crank casting number. If the crank has a the casting number 3777178 it is a 230 if the casting number on the crank is a 3962084 it is a 250...you could pull the valve cover if the head casting number is 3872708 it is a 230. If it is 6259693 it is a 250..
whopman- Number of posts : 387
Location : Columbus, Ga
Registration date : 2010-04-01
It could also be a 1962-1979 250 with a head casting number of 3962084 and a crank casting number of 3876802
donivan65- Governor
- Number of posts : 12248
Location : San Diego, California
Registration date : 2008-05-12
230 sounds like the number you want to call your engine,,,,,
Guest- Guest
is there any kind of chart i can view on line to look it up ??
Guest- Guest
tnx whopmanwhopman wrote:It could also be a 1962-1979 250 with a head casting number of 3962084 and a crank casting number of 3876802
Guest- Guest
tnx donavandonivan65 wrote:230 sounds like the number you want to call your engine,,,,,
whopman- Number of posts : 387
Location : Columbus, Ga
Registration date : 2010-04-01
panelmanrd- Number of posts : 801
Location : kcmo
Age : 63
Registration date : 2009-10-04
there is an easier way to identify what engine you have.
there is a pad next to the distributor that has some
numbers and letters stamped on this pad, they are production codes and will tell you what year and size
of your engine and also where you motor was built.
get this number and get on a chevy engine id site and
it will tell you what your engine started life as.
230/250 same block, crankshaft has different stroke.
there is a pad next to the distributor that has some
numbers and letters stamped on this pad, they are production codes and will tell you what year and size
of your engine and also where you motor was built.
get this number and get on a chevy engine id site and
it will tell you what your engine started life as.
230/250 same block, crankshaft has different stroke.
