1966 Corvette 427 & M22 Trans

[Drew Papsun]

[ QUOTE ]
Aloha guys I need some help buying an engine & transmission out of a 1966 Corvette.1st is the price,The guy wants $3500 for the engine, pan to heads.He said that it is a 425 horse engine with rectangle port heads.What are the letter codes to look for on the engine block.Next is he said he also has the M22 from it & said he wants $1500.First question,On the trans is does it have the C designation on it, if not how do you tell if it is a M22.Also is the pricing for both in the ball park & also I would like a M22 That makes the loud noise.I know this one has the small output shaft,But does it make as much noise as the 1970 M22 with the large output shaft.My friend had one & it was very loud .Any help would be greatly appreciated Mahalo Irvin

[/ QUOTE ]

Hello Irvin,
The 1966 M-22 Transmission input clutch shaft has no circlar grooves. The main case has 2 plugs in the passenger side in upper is the fill plug and the lower is the drain plug.
You need to get information of the stamping of assembly date and VIN stamped on the rear flange of the main case.
You need to get digital photos of the engine pad and casting part number and casting date. The photos of the transmission as described above.
This will help to see what are looking to purchase.
Regards,
Drew Papsun
[email protected]

[3macs1]

Hello Irvin,
The 1966 M-22 Transmission input clutch shaft has no circlar grooves. The main case has 2 plugs in the passenger side in upper is the fill plug and the lower is the drain plug.
You need to get information of the stamping of assembly date and VIN stamped on the rear flange of the main case.

Hi Drew:
I would use the muncie M22 two groove and dual plug check as a guide only. I got burned real bad years back on so called 66 M22 that was not. The only way to know for sure is to take the side cover off and look at the gear angle.Some replacement over the counter shafts had no grooves only and some m21's had the dual plug. Also at least up here 66 was a year they were not consistant in stamping the cases with any VIN.If he would post the casting numbers of the case and side cover and indicate if the side cover have studs for the levers which it should that would help along with a picture of the gears.
If that is not true CRASH correct me.
I have a real nice 66 trans no groove 10 spline input,small output, reverse switch and dual plugs but it has no M22 gears in it. Unfortunately I paid M22 prices for it but that was many years ago. Not that I am any smarter now
Just trying to help