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Older Chevy and GMC C/K Series (20+ years) General Discussion

29 messages,  Last post on Jun 09, 2009 at 8:02 AM

You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram

What is this discussion about? GMC Sierra 3500, Truck

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#18 of 29 Re: Modernizing 1978 Chevy Custom Deluxe [tireguy] by infoplease Jul 14, 2008 (7:22 pm)
Replying to: tireguy (May 03, 2007 11:19 am) Sorry to intrude was wondering if you or anyone knows were I can get info on swaping an 03 silverado 4.8 ltr into a 91 GMC 2500 series truck, or is this something that should not be attempted. I have both trucks 03 was in heavy collision drive line was not damaged although truck is beyond repair. Any info would be highly appreciated. Thanks. Replies to this message: kcram (Jul 17, 2008 5:20 am)
#19 of 29 Re: Modernizing 1978 Chevy Custom Deluxe [infoplease] by kcram HOST Jul 17, 2008 (5:20 am)
Replying to: infoplease (Jul 14, 2008 7:22 pm) I tend to recommend against putting "electronic" (especially OBD-II) engine into older vehicles simply because you also need all the electronics to come with it. All the 2003 computers, wiring, and sensors have to be there for the engine to run properly.   kcram - Pickups Host
#20 of 29 Fender emblem removal 85 GMC Sierra by toneygoins Aug 14, 2008 (7:42 am)
How are the front fender emblems attached to a 1985 GMC Sierra and what is the best way to remove them w/o breaking them? Thanks
#21 of 29 79' Sierra Classic New engine? by Tapunks Nov 26, 2008 (3:43 pm)
#22 of 29 79' Sierra Classic New engine? by Tapunks Nov 26, 2008 (3:30 pm)
I've got a 1979 GMC 1500 Sierra Classic with massive problems. It was converted into gas because the diesel engine broke down every other week before it was a year old. 1/2 the parts are still the original diesel parts. Currently it has a 350 v8 gas engine out of a 94' Chevy van. The main problem is, the engine is soon to go. I would like to know what would be a powerful engine to replace it. I'm not worried about gas mileage, I'm just tired of going 0-60 in 16sec. or 55mph up a 5% incline. I've been told Port&polished 202 heads are good, but that says nothing for the engine.
#23 of 29 79' GMC Sierra Classic Problems by Tapunks Nov 26, 2008 (3:43 pm)
Alrighty, My trucks got massive problems. The ignition doesn't work so my father installed a switch that grounds a wire to get the starter going, and when that fails I'm forced to ground the wire directly to a bolt under the hood, and when that fails I'm forced to stick a long screwdriver down past the engine to cross the starter directly. The switch fails because it wasn't designed for the volts needed, but does work at least 2 times a day before and after work . Now I have no idea why the ignition fails in the first place. I've recently replaced the ignition switch and cylinder, but that hasnt changed anything. My father said it's had this problem for a long time, even with a new starter, probably because 1/2 the parts are still the original diesel. I'm going to have to change the starter soon anyway. I'm having to smack it for it to work some days, and crossing the wires isn't exactly a good thing for it. Any ideas? I've currently got a 350 v8 gas engine out of a 94' chevy van, but it's about to go. Refer to "79' Sierra Classic New engine?" about what engine might be in my truck.
#24 of 29 '89 Chevy/GMC by sonofasailor Jan 10, 2009 (9:09 am)
#25 of 29 '89 Chevy/GMC by sonofasailor Jan 10, 2009 (9:09 am)
I everyone, I'm new to the forum and I have a question: I'm looking at a 1989 GMC 4x4, short box, V8 with 106,000 original miles (or so the owner says) on it. The body has been repainted and the interior looks good. I'm taking it for a test drive next week and I'm going to have my mechanic give it the squint eye. What should I be looking out for with this particular model? Thanks in advance!
#26 of 29 by cumminsdiesel Jan 15, 2009 (12:48 pm)
Cindy:   If I were you, I would have bought the truck. The small things (rust, etc) can easily be fixed, and yes, it is correct - technically this truck already is a classic. I am personally considering a K5 Blazer.
#27 of 29 1990 Silverado Radiator Oil Cooler Hose Fittings by hotrudderedbum Mar 16, 2009 (5:22 pm)
The truck is a 5.7L 2WD with only 137K on it and I hope to keep it forever.   I recently disconnected and bypassed the oil cooler hoses from the radiator while troubleshooting a curious high oil pressure indication. When I went to reconnect the hoses I found the lower fitting on the radiator stripped (the rad was replaced several years ago, too late to raise a warranty issue).   The nut that threads into the radiator is fine.   My question is...Is the female thread in the radiator an insert, sort of like a helicoil, or is the thread milled into the radiator body?   I'd really prefer to not have to put in another new radiator.   Any ideas?   Thanks!

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