my 48 GMC - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jeffspower · 04-17-2003, 12:35 AM

Bought this at an auction- I just could not pass it up for the price. It was on a farm sale. It was running & parked in a barn in 1987 (by the last plate registration.) They quit using it because it has a blown head gasket. The crank would not turn by hand so I sprayed PB blaster in the cylinders & it spins free now. I am going to see if it will run decent & then replace the gasket. Appears to be a later chevy 235. Anyone know how to tell what year it is? It has the long water pump.

The body is pretty nice with minor rust in the passenger side floor only. It has 20" rubber (nope, not the tread belt without a sidewall type) a 4spd with vac. 2spd. & a large cylinder "scissor" hoist.

Looking forward to some R&R tinkering with it! -Jeff

*Randy70C-10* · 04-17-2003, 12:54 PM

You talkin about the year of the engine? Do you have the casting #s from it?

jeffspower · 04-17-2003, 12:55 PM

I was referring to the engine year of manufacture.

jeffspower · 04-17-2003, 12:56 PM

I will get the numbers & post them tonight- Jeff

Fred T · 04-18-2003, 03:52 PM

Go to inliners.org to check the casting numbers.

jeffspower · 04-19-2003, 08:14 PM

Thanks, Fred. Their info says my casting #3769717 is a 59-62 261. I am going to see if it will run & if it runs decent i'm going to do the head gasket.

If this engine turns out to be a dud, does the later 60-70's v-8 pickup bellhousing bolt up to this trans? Crossmember & mount work would be no problem for me. The GMC radiator appears to be in good shape & bigger than the one in pickups. I would think it could cool a sb 400 as I have a good one to use. I have two pairs of ram horn manifolds, one set is straight dump & the other is angled back dump. Does one of these styles work well for this conversion?

Hmmn, then there's that 454 in the corner or my friends 366 & allison 545 auto with the pto already on it-

04-17-2003, 12:35 AM	#1
jeffspower Well, Whoop-dee-do! Join Date: Mar 2003 Location: Easton, Mo. pop.- me & scarcely a few others Posts: 2,302	my 48 GMC Bought this at an auction- I just could not pass it up for the price. It was on a farm sale. It was running & parked in a barn in 1987 (by the last plate registration.) They quit using it because it has a blown head gasket. The crank would not turn by hand so I sprayed PB blaster in the cylinders & it spins free now. I am going to see if it will run decent & then replace the gasket. Appears to be a later chevy 235. Anyone know how to tell what year it is? It has the long water pump. The body is pretty nice with minor rust in the passenger side floor only. It has 20" rubber (nope, not the tread belt without a sidewall type) a 4spd with vac. 2spd. & a large cylinder "scissor" hoist. Looking forward to some R&R tinkering with it! -Jeff

04-17-2003, 12:56 PM	#4
jeffspower Well, Whoop-dee-do! Join Date: Mar 2003 Location: Easton, Mo. pop.- me & scarcely a few others Posts: 2,302	I will get the numbers & post them tonight- Jeff __________________ '68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD '72 K20 500 Cad/TH400/NP205 SOLD '92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver '72 Monte Carlo... sweet low mile toy '11 Dodge Challenger IE 392 6spd... midlife car

04-18-2003, 03:52 PM	#5
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Go to inliners.org to check the casting numbers. __________________ Fred There is no such thing as too much cam...just not enough engine.

04-17-2003, 12:54 PM	#2
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	You talkin about the year of the engine? Do you have the casting #s from it?

04-17-2003, 12:55 PM	#3
jeffspower Well, Whoop-dee-do! Join Date: Mar 2003 Location: Easton, Mo. pop.- me & scarcely a few others Posts: 2,302	I was referring to the engine year of manufacture. __________________ '68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD '72 K20 500 Cad/TH400/NP205 SOLD '92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver '72 Monte Carlo... sweet low mile toy '11 Dodge Challenger IE 392 6spd... midlife car

04-19-2003, 08:14 PM	#6
jeffspower Well, Whoop-dee-do! Join Date: Mar 2003 Location: Easton, Mo. pop.- me & scarcely a few others Posts: 2,302	Thanks, Fred. Their info says my casting #3769717 is a 59-62 261. I am going to see if it will run & if it runs decent i'm going to do the head gasket. If this engine turns out to be a dud, does the later 60-70's v-8 pickup bellhousing bolt up to this trans? Crossmember & mount work would be no problem for me. The GMC radiator appears to be in good shape & bigger than the one in pickups. I would think it could cool a sb 400 as I have a good one to use. I have two pairs of ram horn manifolds, one set is straight dump & the other is angled back dump. Does one of these styles work well for this conversion? Hmmn, then there's that 454 in the corner or my friends 366 & allison 545 auto with the pto already on it-



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