(quoted from post at 19:57:42 10/06/14)
(quoted from post at 18:50:00 10/06/14)
(quoted from post at 10:01:14 10/06/14) I started working at a large independent garage in the late 1950s.
To the best of my memory, back then and later, Chevy and GMC trucks were two completely different trucks, and you could buy a GMC truck with several different engines--but I never saw a Chevy engine in a GMC truck and was told GM didn't offer one so equipped.
Anyone know when GMC trucks became virtually the same truck as chevy?
would say that "completely different" is a stretch. Early days, perhaps B&S differences, etc. Then along in 50's a "different from Chevy V6" (GMC unique), and late 50's GMC trucks used Pontiac V8. Always close cousins. From the ~70's more or less, GM started using the so called "corporate" engine in just about everything from GMC trucks, to Cadillacs, and it was the basic small block Chevy engine. I didn't look up the dates, so interpret those with liberty.
1) Which domestic GM division never used a version of the small block engine in any of its vehicles.
2) In 1908 the newly formed GM brought the truck line we know today from what company.
BTW doing a parts search a V8 did not appear until 1967 until then by the parts look up all that was available till then was a V6...
oo 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.