Look for the casting number. It should be on the drivers side of the bellhousing/transmission mount flange. Then run that number through one of the casting guides.
Larry
68 C20 327/465 daily driver 4:56 och!
63 C20 292/420 Camper truck Detroit Locker 4:10 posi
65 C10 ? /powerglide Custom Cab AC,PB,PS,4xflash


I don't own a vehicle that isn't old enough to drink.