1968 non SS L79 with A/C??
Cam Info From the Chevrolet Parts Interchange Manual:
1965-1968 327 with special high-performance RPO L79 used camshaft interchange number 3
Part number(s): 3863151, ID Number(s): 3849347, 3863152.
Lift: 0.447 inch intake and exhaust.
Duration: 221 degree intake and exhaust.
TYPE: HYDRAULIC LIFTERS
Usage: 1965-68 327 with special high-performance.
Commonly called the L79 327ci/350hp cam.
RPO Option C60 Air Conditioning Info:
Books by Doug Marion, Paul A. Herd, Alan L. Colvin, Jerry MacNeish, John Gunnell, Tom Currao, Ron Sessions and Jason Scott all support the above said theory that any Chevrolet cars with the solid lifter small block 302ci and solid lifter big block 427ci motors COULD NOT be ordered with AC, BUT any Chevrolet car with the hydraulic lifter small blocks or big blocks COULD be ordered with air conditioning.