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We are still asking:
What did you
get done on
your Bolt today
????


The question, initially posted May 23, 2005, was:
"Whatcha do on your Bolt
this weekend?"

After 51,906,997 views, 7378 replies over 185 pages, this thread in General Truck Talk is a happening! And it's not just weekends anymore.


Now with pictures
and No BOTS.


So ...


What did you get done on your Bolt today????


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1959 GMC 6 cyl engine type
#1422639 Wed Sep 01 2021 10:20 PM
Joined: Aug 2021
Posts: 15
D
danP Offline OP
'Bolter
Hello, I have a 1959 GMC 100 truck with a 6 cylinder and a 3 speed. The number stamped on the engine boss near the distributor says 270976739. Doesn't seem to match up with the engine decoder for a 1959. MIght be a 270 cubic inch.

Anybody know what that number means? dan

Re: 1959 GMC 6 cyl engine type
danP #1422692 Thu Sep 02 2021 01:08 PM
Joined: Dec 2008
Posts: 1,707
P
'Bolter
Count the core plugs:
235 etc. 2
230, etc. 3
GMC 5

Re: 1959 GMC 6 cyl engine type
danP #1422694 Thu Sep 02 2021 01:24 PM
Joined: May 2016
Posts: 235
J
'Bolter
On the gmc engine the 1st 3 numbers stamped on the pad next to the distributor would indicate the size of the engine so it appears yours is a 270 c i


1949 gmc 1-ton
Re: 1959 GMC 6 cyl engine type
danP #1423095 Mon Sep 06 2021 03:09 AM
Joined: Jun 2011
Posts: 4,460
E
'Bolter
No GMC engines were ever 235, 230. All GMC engines used that displacement notation like Johnny said.

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.

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