Quoting Removed, click Modern View to seeToo much time Googling, Hobo!
1) Saturn
2) Rapid/Reliance
1955 - All new GMC Blue Chip light and medium duty models debuted mid-year, featuring many improvements in comfort and styling. V8 engines were offered for the first time, providing more power and smoother operation than the GMC inline 6s that were still available. The V8s used in light and medium models were built by Pontiac and the larger V8s in heavies came from Olds.
1960 - Most models were powered by a completely new family of GMC V6 and V12 gasoline engines.
1960 - V6s were 305, 351 and 401 cid
GMC Truck produced a unique 60° V6 engine from 1960 through 1978. The engine was available in 305, 351, 401 and 478-cubic-inch (5.0, 5.8, 6.6, and 7.8 respectively L) versions. In late production there was also a 432-cubic-inch (7.1 L) version with enlarged crankshaft journals. GMC also made a 637-cubic-inch (10.4 L) 60° V8 with single, not twin balance shafts using the same general layout(bore & stroke) as the 478. The 637 V8 was the largest production gas V8 ever made for highway trucks. Finally, there was a 702-cubic-inch (11.5 L) "Twin Six" V12, which was basically two 351s placed end-to-end with a common block and crank.
1963 - Chevrolet 230 cid inline 6 engines appeared as base equipment in GMC light trucks identified with an "I" prefix in the model designation.
1966 - Chevrolet 250 cid inline 6 cylinder engines replaced 230s in "I" models.
1968 - A full range of Chevrolet engines was available in GMC light trucks, from a 140 hp 230 cid L6 to a 310 hp 396 cid V8. Many models were cancelled that year due to low sales volumes.
1973 - Redesigned light duty conventional models debuted with all new cabs and sheet-metal. Improvements included much larger interior space and glass area. 6-passenger crew cabs were available on 3/4 and 1-ton models and dual rear wheels were offered on 1-tonners. Engines available ranged from 250 cid L6 to 454 cic V8, all from Chevrolet.
1974 - All remaining GMC V6 and V8 engines were cancelled. Gas engines were replaced by Chevrolet's.
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Today's Featured Article - Women and Tractors - More Views From the Farmer's Wife - by Teri Burkholder. The top ten reasons why the judges wouldn't let you participate in the stock antique tractor pull: Hey, this is stock! It came with that V8 in it! That "R" on my tires stands for "really old" not radial! Blue gas? We thought it was a pretty color! What wire hooked to my throttle?
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