misfit1

Where can I find out what these casting numbers go to?

Block # 3789935
Head # 3774692
Intake # 3739653
Trans. # 3885010

Thanks for any help!

stingrayl76

Block # 3789935 = 283-very late 1961 Corvette
Head # 3774692 = All 1960 Engines/1961- 230, 245 and 270 HP
Intake # 3739653 =1958-1961 Aluminum Dual 4-Bbl Carbs
Trans. # 3885010 = Can't help you with the trans.

Dave

knight37128

Trans. # 3885010 Muncie 4 speed

Years: 1965 - 1967

redonred

Misfit -
The casting numbers you listed are as follows:

Block #3789935: 1961 (very late)

Head #3774692: All 1960, 1961 - 230, 245 & 270 HP

Intake #3739653: Aluminum: 1957 - 245 & 270 HP, 1958-1961 on dual 4bbl

Trans #3885010: Sorry, but I'm coming up empty on this number.
There are codes stamped on the transmission that will shed light on it.

The source for the above is the NCRS 1953-1972 Corvette Specification Guide.

Good Luck!

misfit1

you guy are GREAT! Thanks for the information

Bob's 64

I think your trans # 3885010 is a M21 close ratio out of a 1967 vette.

JohnZ

There's no way to tell the trans ratios from the main case casting number - all varieties (M20/21/22) used the same main case (although the M22 case was drilled/tapped with a drain plug); the 5010 case was used in '66 and '67.