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| | | Forums66 Topics128,060 Posts1,055,837 Members48,427 | | Most Online14,466 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!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | Can anyone help me out on this one. I have two #'s 8701887 GM12 (off the intake manifold).
The other behind the distributor on the block B19 887 966 570. The first "8" might be a "3" it's difficult to tell. I was told it was a Canadian 235 engine but don't know what year. The valve cover has the two acorn nuts and it is a 3 speed. Dan | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | The head and block casting numbers may be of some help here. The Canadian casting numbers used to be online on the Hemmings site but that is gone now. Also, someone posted a link to the same information online, just recently. I have a copy of the PDF that has the Canadian casting numbers, somewhere on my computer. | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | | | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | Thanks,I've gone down the list and nothing matches. The Canadian list ends in 52. I suspect my engine is 53,54 or 55. All I was told when I bought the truck that it came out of a GMC. The block and intake are painted orange don't know if that makes a difference or not. There's no pressed identification on the oil pan. | | | | | Joined: Jan 2002 Posts: 2,254 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 2,254 | Eh is somewhere in the casting code
Dennis -there is nothing stronger than the heart of a volunteer-
| | | | | Joined: Oct 2004 Posts: 1,780 Master Gabster | | Master Gabster Joined: Oct 2004 Posts: 1,780 | You need to find the "Block" or "Head" casting numbers and post it here. The numbers you have listed does not help me in my search. Find the number and put it in HERE I will update THIS INFORMATION if you find information that needs to be in here. | | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | ok Stovebolter's let see if you can solve this one for me.. I can't identify my engine #, when I purchached the truck it was not the original engine in the truck and the seller told me the engine came out of a 1953 GMC truck located in Montreal, Canada.
Here's all the info that I can find under the hood.
Valve cover: Two acorn nuts
Located on block left side of distributor: LAQ459I83
On the block just above distributor: B19 857 966 570 not certain about first #5 and #9 very fuzzy
On the head casting carburator side: 3701887
On the block behind starter: H193
On the block behind fuel pump: 2 GM
Last edited by DJRoy; 06/18/2013 12:06 AM.
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | In a USA Chevrolet,
LAQ = 235 Powerglide-equipped car engine
H193 H = August 19 = 19th 3 = 1953
| | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | After searching on the web I found that "LAQ" stand for a 1953, 235 engine with powerglide. That makes sense because I recently fixed my transmission from dropping out of third by discovering there was no pilot bushing at the end of the crank which means the engine must of came out of a car that had an automatic | | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | thanks Tim I'm finally getting somewhere, now if someone could tell me the engine has a Horsepower of 108 or HP115 Dan
Last edited by DJRoy; 06/18/2013 12:27 AM.
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
Last edited by tclederman; 06/18/2013 6:22 AM. Reason: added comment about data from wrong year, 1954
| | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | I guess if a 235 engine comes with an automatic its HP is 115 if the 235 is equiped with a manual transmission its HP is 108
Am I correct to assume this? | | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | Wow, this is getting a bit confusing. Not certain why they call it the Blue Flame, the engine block is orange if that means anything and with the LAQ stamp on the engine it's a 53 not a 54.
I may be wrong but in 1953 HP was either 108 or 115 unless you had a Vet engine which I think came with 150 HP. I'm new at this and that's why I'm trying to confirm my findings. Dan | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Sorry about my posting the wrong year. 1953 Powerglide Blue Flame 235 - 115hp (gross hp) The USA color of the Blue Flame engine was a shade of blue. Orange was a common rebuild/repaint color (it was commonly available/on-hand). Yes, it looks like the 1953 Corvette Blue Flame 235 had a 150hp rating. | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | That is a very interesting comment about your transmission dropping out of gear. So a badly worn pilot bushing would probably cause the problem too. | | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | Yeah, problem was that there was no pilot bushing at all. That also answers why there was such a rattling noise when the engine ran. I guess they took this engine out of a GMC truck that had an automatic tranny and put it in my truck and hook up the manual tranny to it without any pilot bushing in place. When I opened up the tranny the needle bearings were all chewed up and the end brass piece of the synchro was coming apart. | | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | | | | | | Joined: Jul 2012 Posts: 93 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2012 Posts: 93 | you said the crank had no pilot bushing and it should be a powerglide motor and if its a '53 model then you got a 115 hosser, with full pressure oiling- it should run 30# oil pressure or more. If it is a passenger car motor truck motors had less | | | | | Joined: Oct 2012 Posts: 85 Shop Shark | | Shop Shark Joined: Oct 2012 Posts: 85 | when driving oil pressure is max on my gauge which is 30 when idling it's around 15 | | | | | Joined: Jul 2012 Posts: 93 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2012 Posts: 93 | "truck motors had less"
Meant to be "truck engines had less horsepower"
It sounds like it is a 115 hp PG 235.
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | I thought you were referring to the fact that 1953 truck 235s had less oil pressure compare to the 1953 Powerglide 235.
| | | | | Joined: Jul 2012 Posts: 93 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2012 Posts: 93 | naw, they pretty much had less than 30#, or more than 30# "the clatter and splash" systems were the less than 30# bunch. but it did seem that all the truck motors for many years had less hosses than their passenger car conterparts-maybe lesser cams for more bottom end luggin'. | | |
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