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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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with Ads!  Again, thanks!
| | | | Joined: Mar 2019 Posts: 1,003 'Bolter | | 'Bolter Joined: Mar 2019 Posts: 1,003 | I found a truck ive been watching on CL. I didn't call yet. I dont call unless im ready to pull da trigger. Dont like to waste the sellers time being a time waster. Anyhow. The application is a 1959 GMC 100. I know is has a 3 on the tree and a 6 cylinder is listed. My question is what 6 cylinder is stock for that truck? | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Probably a 270?What is the code pressed into the block at the rear of the distributor? | | | | | Joined: Mar 2019 Posts: 1,003 'Bolter | | 'Bolter Joined: Mar 2019 Posts: 1,003 | I have no idea. But will check if I move forward. Any other possibilities? Or just a 270 | | | | | Joined: Feb 2004 Posts: 29,749 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,749 | All GMC engines look similar- - - -228, 248, 270, and 302. There's also a 256, but they're extremely rare- - - -mostly Canadian military engines for that one. The only real way to tell the difference is to look at the stamped number by the distributor, or measure the bore and stroke.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Mar 2019 Posts: 1,003 'Bolter | | 'Bolter Joined: Mar 2019 Posts: 1,003 | Good to know. Thanks for the info. | | | | | Joined: Aug 2001 Posts: 3,588 Moderator | | Moderator Joined: Aug 2001 Posts: 3,588 | Jerry, When did the 292 six come out?
That's what's in Vicki's 65 one ton.
Don
1967 GMC 9500 Fire Ladder Truck"The Flag Pole"In the Stovebolt Gallery1946 2-Ton grain truck 1946 3/4-ton pickup, 1953 1-ton pickup 1957 1-ton flatbed dually, 1954 Pontiac Straight Eight Of all the things I've lost in my life, I miss my mind the most! | | | | | Joined: Feb 2004 Posts: 29,749 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,749 | I believe it showed up in the early 1960's- - - -63 or 64, maybe? It was an upsized version of the 194/230/250 engines that shared a lot of design features like the bellhousing bolt pattern and a few internal parts with small block V8's. The first of that generation of engines came out as a 194 in the 1962 Chevy II, along with a similar-design 4 cylinder. The 292 is a raised-block version of the 250 with a much longer stroke, a taller side cover, and an offset motor mount on one side of the block.
The 228 through 302 GMC's use the same bellhousing and a few other parts as the 216, 235 and 261 Chevy engines.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Aug 2001 Posts: 3,588 Moderator | | Moderator Joined: Aug 2001 Posts: 3,588 | Jerry, You really amaze me on your knowledge!
You answered that question in < ten minutes!
I know you didn't have time to look it up!
Thanks
Don
1967 GMC 9500 Fire Ladder Truck"The Flag Pole"In the Stovebolt Gallery1946 2-Ton grain truck 1946 3/4-ton pickup, 1953 1-ton pickup 1957 1-ton flatbed dually, 1954 Pontiac Straight Eight Of all the things I've lost in my life, I miss my mind the most! | | | | | Joined: Aug 2001 Posts: 3,588 Moderator | | Moderator Joined: Aug 2001 Posts: 3,588 |
1967 GMC 9500 Fire Ladder Truck"The Flag Pole"In the Stovebolt Gallery1946 2-Ton grain truck 1946 3/4-ton pickup, 1953 1-ton pickup 1957 1-ton flatbed dually, 1954 Pontiac Straight Eight Of all the things I've lost in my life, I miss my mind the most! | | | | | Joined: Mar 2019 Posts: 1,003 'Bolter | | 'Bolter Joined: Mar 2019 Posts: 1,003 | awesome, and thanks again. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | The later series engines are about 3 inches longer than earlier Chevy engines, about the same length as GMC 6's.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Mar 2004 Posts: 6,214 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,214 | 1963 was the first year for the 292 in Chevrolet big trucks... Mike B  | | | | | Joined: Mar 2019 Posts: 1,003 'Bolter | | 'Bolter Joined: Mar 2019 Posts: 1,003 | U snooze, U lose.. I guess we will never know. Its sold....grrrr | | | | | Joined: Apr 2012 Posts: 158 Shop Shark | | Shop Shark Joined: Apr 2012 Posts: 158 | Gotta be quick on the draw with 'old iron'..... Roll the dice & worry about it later.......like i just did !!! | | | | | Joined: Mar 2019 Posts: 1,003 'Bolter | | 'Bolter Joined: Mar 2019 Posts: 1,003 | IKR. Lesson well taught again... The next one wont get away.. HA | | | | | Joined: Oct 2018 Posts: 112 Shop Shark | | Shop Shark Joined: Oct 2018 Posts: 112 | Firstly, do not trust wikipedia. Secondly, Jerry's correct (as usual).  In all my original GM text, the 292 was first offered in 1963, weighing in at 165 hp @3800 and 262 ft-lbs @ 2000. Also that year, the 145, the 153, High Torque 230, 283, 327, 348, and 409. In the Diesel category, the 4-53, and 6V-53. All, in case anyone cares. Chris
'64 Chev C20 LWB stepside (Ol'Blue)
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