having trouble identifying inline 6 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cell · 01-14-2006, 09:59 PM

Quoting from my "Catalog of Chevy Truck ID Numbers 1946-1972":

"The 6-cylinder engine unit number is located on the pad at the right hand side of the cylinder block at the rear of the distributor."

Hmm, mine doesn't seem to have a number there.

I do have the following numbers on my engine block:

passenger side, to rear of dipstick: CON 2
passender side, in front of dipstick: K156
passenger side, to rear of fuel pump: 3851659
below that: GM (in large letters)
below that: 7

driver side, in front of midline just below the head: 11
driver side, to rear of midline just below the head: 1659

My bore is definitely 3 7/8 inches, which is normal.

My stroke, however, appears to be 4 1/8 inches, which is neither the 250 nor the 292 (it would be something like 267). Perhaps I am measuring this wrong? I rotate the harmonic balancer, note the the pistons come up flush with the top of the block at top dead center, then rotate until one of them appears to be at bottom dead center, and measure from the top of the piston to the top of the block. Is this the correct way to measure this?

68haywagon · 01-14-2006, 10:08 PM

Numbers off of inliners.org

3851659 63-76 292

If it has something like 6" pushrod covers and the fuel pump is near the middle of the block its a 292.

Mike

shifty · 01-14-2006, 10:21 PM

68 got it right. basic breakdown:

292 has 6" covers on side and the motor mount sits between the fuel pump and oil filter. on the and 250 the fuel pump sits between the oil filter and the motor mount. the deck on the 292 is 1¾" taller than the 194, 215, 230 and 250.

cell · 01-14-2006, 10:30 PM

thanks guys!

68haywagon · 01-14-2006, 10:41 PM

Not a problem, thats what we are here for

01-14-2006, 09:59 PM	#1
cell Active Member Join Date: Nov 2005 Location: Austin Posts: 217	having trouble identifying inline 6 Quoting from my "Catalog of Chevy Truck ID Numbers 1946-1972": "The 6-cylinder engine unit number is located on the pad at the right hand side of the cylinder block at the rear of the distributor." Hmm, mine doesn't seem to have a number there. I do have the following numbers on my engine block: passenger side, to rear of dipstick: CON 2 passender side, in front of dipstick: K156 passenger side, to rear of fuel pump: 3851659 below that: GM (in large letters) below that: 7 driver side, in front of midline just below the head: 11 driver side, to rear of midline just below the head: 1659 My bore is definitely 3 7/8 inches, which is normal. My stroke, however, appears to be 4 1/8 inches, which is neither the 250 nor the 292 (it would be something like 267). Perhaps I am measuring this wrong? I rotate the harmonic balancer, note the the pistons come up flush with the top of the block at top dead center, then rotate until one of them appears to be at bottom dead center, and measure from the top of the piston to the top of the block. Is this the correct way to measure this?

01-14-2006, 10:08 PM	#2
68haywagon I'm watching you! Join Date: Feb 2005 Location: Levittown, PA Posts: 1,822	Re: having trouble identifying inline 6 Numbers off of inliners.org 3851659 63-76 292 If it has something like 6" pushrod covers and the fuel pump is near the middle of the block its a 292. Mike __________________ 2012 Chevrolet Silverado 1500 Z71 4WD 1993 Chevrolet C-1500 W/T - Blue - 4.3L V-6, 4 speed auto - Dad's (RIP) 1992 Chevrolet S10 - LS swap project 1968 Chevrolet C-10 longbed fleetside - sold

01-14-2006, 10:21 PM	#3
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,376	Re: having trouble identifying inline 6 68 got it right. basic breakdown: 292 has 6" covers on side and the motor mount sits between the fuel pump and oil filter. on the and 250 the fuel pump sits between the oil filter and the motor mount. the deck on the 292 is 1¾" taller than the 194, 215, 230 and 250. __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

01-14-2006, 10:30 PM	#4
cell Active Member Join Date: Nov 2005 Location: Austin Posts: 217	Re: having trouble identifying inline 6 thanks guys!

01-14-2006, 10:41 PM	#5
68haywagon I'm watching you! Join Date: Feb 2005 Location: Levittown, PA Posts: 1,822	Re: having trouble identifying inline 6 Not a problem, thats what we are here for __________________ 2012 Chevrolet Silverado 1500 Z71 4WD 1993 Chevrolet C-1500 W/T - Blue - 4.3L V-6, 4 speed auto - Dad's (RIP) 1992 Chevrolet S10 - LS swap project 1968 Chevrolet C-10 longbed fleetside - sold



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