K25 to K20 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**JIMs70GMC** · 12-02-2004, 08:49 PM

Started the change today, had been prepping the parts for the past 4 weeks. Pulled the "doghouse" off today. Going to get a leak in the radiator fixed tomorrow. Also need to replace the valve cover gaskets.

As you can see this motor has the long pump setup. The C30 I bought has the short pump power steering brackets but no pulleys. Going to install a 72 grill for now, but I'm getting a 70 grill from another board member and will use it, I like the parking lights in the grill not the bumper.

**Canadian694x4** · 12-03-2004, 01:23 AM

Sweet Progress Jim...can't wait to see the "New Look" !!

GMC71k20 · 12-03-2004, 01:42 AM

nice progress, its gonna look sweet. how are the hawgs? im jealous of your collection

1969 GMC · 12-03-2004, 02:02 AM

Jim, I get envious when I see all the work you get done on your trucks. I wish I had the time to do that to mine, but I can only spare to be on here while I am working on my homework, other than that I am at work, school, or asleep.

Did you hear anything about the center section? I still have the crate, its actually the holder for one of my center sections, as I couldnt find any more 5 gallon buckets...lol

Dean · 12-03-2004, 07:54 AM

Looking good!!! That thing looks strangely familiar also....lol

It seems that truck never could make up its mind whether it wanted to be a Chevy or a GMC.

The engine still running good?

1969K10 · 12-03-2004, 08:30 AM

Looks like a good time getting ready to be had

2 questions, what makes it a K25 vs K20?

And what are you going to do with the GMC radiator support you removed?

toddol1971 · 12-03-2004, 10:49 AM

gmc called em k25 & chevy called em k20.

**JIMs70GMC** · 12-03-2004, 08:04 PM

Thanks guys. Hawgs are doing good. For an extra $120 I could have gotten 38.5s. That would have been 720 vice 600 I paid. Dean the engine's running strong. Have not heard from him about the center section. Did get a set back today, the radiator could not be repaired. Oh well, I bought a new one. I'll have some pics tomorrow.
the GMC core support, for the most part is solid, though the headlight buckets are bolted on, I think it was a chevy at one time. Have not done anything with it for now.

**JIMs70GMC** · 12-05-2004, 12:00 PM

Just waiting for the battery tray I ordered from GMC Pauls. Got my new radiator.

Having a slight problem with the body lines but getting it worked out. The right fender needs to go back in relation to the hood, but the hood is square so it's as if I need to piviot the whole cab.

**JIMs70GMC** · 12-08-2004, 09:03 PM

Moved it today. Got my radiator in and battery. Had to buy a few parts-bought them from GMCPauls, a battery tray and radiator cushins. Dark but, on the road:

Mudder · 12-09-2004, 06:02 AM

Its lookin Good.........

*dtlilly* · 12-09-2004, 06:59 AM

Lookin good! Is that the truck your putting the long stepside bed on?

**JIMs70GMC** · 12-09-2004, 07:06 AM

Was but, I got a good deal on the bed, now I'm going to put the stepside bed on the GMC.

*dtlilly* · 12-09-2004, 09:41 AM

Ah, 10-4, either one would look good, don't see many 4X4's with an 8 foot step side bed.

12-02-2004, 08:49 PM	#1
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	K25 to K20 Started the change today, had been prepping the parts for the past 4 weeks. Pulled the "doghouse" off today. Going to get a leak in the radiator fixed tomorrow. Also need to replace the valve cover gaskets. As you can see this motor has the long pump setup. The C30 I bought has the short pump power steering brackets but no pulleys. Going to install a 72 grill for now, but I'm getting a 70 grill from another board member and will use it, I like the parking lights in the grill not the bumper. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm Last edited by JIMs70GMC; 12-02-2004 at 08:53 PM.

12-03-2004, 01:23 AM	#2
Canadian694x4 Born To Lose Club Join Date: Feb 2003 Location: Calgary, Alberta/Oxenden, Ontario, Great White North Posts: 13,307	Sweet Progress Jim...can't wait to see the "New Look" !! __________________ Brian Smith - "Born To Lose" 1969 Chevrolet K10 LWB Fleetside - Proud Owner For 22 Yrs - 1 of 208 Built & Sold In Canada!- 283 V8/350TH/NP208, 2" All Spring Lift, 32" Good Year MT/R's. 1972 GMC K2500 Custom LWB Fleetside - Proud Owner For 3 Yrs - 1 of 571 Built & Sold In Canada! - 350 V8/SM465/NP205, 4” Rough Country Lift, 33” Interco TSL Thornbirds 2007.5 GMC Sierra SLE 2500HD 4x4 - Proud Owner For 17 Yrs- 6.6L V8 Duramax Diesel/Allison 1000, 2" Lift, 33" Mickey Thompson MTZ's. 2008 Yamaha Raptor 700r - Proud Owner For 15 Yrs - ITP Mud Lites. 2015 John Deere 1025R - Proud Owner For 8 Yrs - 24HP Diesel/H120/54D/260B/SB1154.

12-03-2004, 02:02 AM	#4
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Jim, I get envious when I see all the work you get done on your trucks. I wish I had the time to do that to mine, but I can only spare to be on here while I am working on my homework, other than that I am at work, school, or asleep. Did you hear anything about the center section? I still have the crate, its actually the holder for one of my center sections, as I couldnt find any more 5 gallon buckets...lol __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

12-03-2004, 08:30 AM	#6
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	Looks like a good time getting ready to be had 2 questions, what makes it a K25 vs K20? And what are you going to do with the GMC radiator support you removed? __________________ 1969 K10 - V8, 465, 205, 12 bolt, D44 2002-current 1969 K20 - V8, 465, 221, Eaton, D44 2012-current Nothin' but drums on all 4 corners! past horses in the stable 72 C10-short step (97-02), 68 C10-long fleet (06-12)

12-03-2004, 10:49 AM	#7
toddol1971 Registered User Join Date: Nov 2003 Location: plainfield il Posts: 163	gmc called em k25 & chevy called em k20. __________________ All my trucks are gone now. I'll gladly take a free one

12-03-2004, 01:42 AM	#3
GMC71k20 Registered User Join Date: Aug 2002 Location: mass Posts: 1,277	nice progress, its gonna look sweet. how are the hawgs? im jealous of your collection

12-03-2004, 07:54 AM	#5
Dean Senior Member Join Date: Jan 2000 Location: Cincinnati, Ohio Posts: 1,492	Looking good!!! That thing looks strangely familiar also....lol It seems that truck never could make up its mind whether it wanted to be a Chevy or a GMC. The engine still running good?

12-03-2004, 08:04 PM	#8
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Thanks guys. Hawgs are doing good. For an extra $120 I could have gotten 38.5s. That would have been 720 vice 600 I paid. Dean the engine's running strong. Have not heard from him about the center section. Did get a set back today, the radiator could not be repaired. Oh well, I bought a new one. I'll have some pics tomorrow. the GMC core support, for the most part is solid, though the headlight buckets are bolted on, I think it was a chevy at one time. Have not done anything with it for now. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

12-05-2004, 12:00 PM	#9
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Just waiting for the battery tray I ordered from GMC Pauls. Got my new radiator. Having a slight problem with the body lines but getting it worked out. The right fender needs to go back in relation to the hood, but the hood is square so it's as if I need to piviot the whole cab. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

12-08-2004, 09:03 PM	#10
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Moved it today. Got my radiator in and battery. Had to buy a few parts-bought them from GMCPauls, a battery tray and radiator cushins. Dark but, on the road: __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

12-09-2004, 06:02 AM	#11
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Its lookin Good.........

12-09-2004, 06:59 AM	#12
dtlilly Account Suspended Join Date: Jan 2003 Location: Shadow of Lambeau Field Posts: 5,597	Lookin good! Is that the truck your putting the long stepside bed on?

12-09-2004, 07:06 AM	#13
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Was but, I got a good deal on the bed, now I'm going to put the stepside bed on the GMC. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

12-09-2004, 09:41 AM	#14
dtlilly Account Suspended Join Date: Jan 2003 Location: Shadow of Lambeau Field Posts: 5,597	Ah, 10-4, either one would look good, don't see many 4X4's with an 8 foot step side bed.



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