Feb 13th, 99, 12:02 PM
I hope you can help me with this !!
I have an 82 Z28 with the following codes.
Front stamp 151165303 K02 11 CMJ
rear drivers side stamp forward of bellhousing 3870010
Feb 14th, 99, 05:05 AM
I show these numbers to decode as follows:
1 = Chevrolet division
5 = 1975
1165303 = Last digits of VIN the engine was originally installed in
K02 11 CMJ
K = Mckinnon engine plant
02 = 2nd Month - February
11 = 11th day
CMJ = 1975 350 CID, TH350/400, 145 HP, Used in Federal vehicles
Note: CMJ was also used in 1974 for police, but your numbers indicate it's a 1975 block. This can be confirmed by checking the casting date code on the bellhousing mounting area on the pass side.
Also the casting # you gave (3870010) should be 3970010 which is a common casting # for 350's. To check if it's a 4 bolt main or not you'd have to pull the oil pan and physically look. Also check the balancer on the front behind the crankshaft pulley. If it is a large balancer, chances are pretty good it's a 4 bolt main.
Feb 21st, 99, 03:14 AM
Scotter has everthing covered! I can add the following about the VIN.
151165303 The 1 after the year 5 is the assembly plant, Oshawa, Canada. No Camaros were built there.
Also by federal vehicles I think he means used in all 49 states and Canada but not in California. In 1975 this was a Chevelle\El Camino\Monte Carlo engine application. My info says 74 was last year for full size at Oshawa plant
Info from Chevrolet parts catalog No. 11.