72 k20 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

b5chevyben · 02-21-2011, 10:27 PM

Im new here; anybody ever put a 292 in a 72 K20 that had a 350 V8; any input appreciated; 4sd 4wd; thanks. b5chevyben

1969K10 · 02-21-2011, 11:02 PM

the cross member for them is different. there is currenty a thread about this, and that the 4X4 x-member is different yet. however, if you're a good welder, you can get around this.

mrein3 · 02-22-2011, 09:26 AM

I never bought the truck so I don't know how they did it but in my old neighborhood there was a little old man with a factory 1969 K20, 4-speed. It had a 292 in it with "8-350" badges on the fenders. I asked him about that. He said the 350 was a dog so at around 18,000 miles he brought it back to the dealer and had them install a 292.
The truck had 41,xxx on it when I saw it last in 2002.

Long story short it is possible. I would find a donor 71 or 72 that came from the factory with a 292. That way you'd have everything correct which in my experience makes it much easier to get parts when you need them.

**special-K** · 02-22-2011, 10:49 AM

The deal with the 292 is it's the only motor with the mounts are staggered. That is what you need to deal with.

02-21-2011, 10:27 PM	#1
b5chevyben Registered User Join Date: Feb 2011 Location: Bayfield, Colorado Posts: 3	72 k20 Im new here; anybody ever put a 292 in a 72 K20 that had a 350 V8; any input appreciated; 4sd 4wd; thanks. b5chevyben

02-21-2011, 11:02 PM	#2
1969K10 Senior Member Join Date: Jul 2004 Location: Clarks Hill, Indiana Posts: 733	Re: 72 k20 the cross member for them is different. there is currenty a thread about this, and that the 4X4 x-member is different yet. however, if you're a good welder, you can get around this. __________________ 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)

02-22-2011, 09:26 AM	#3
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,254	Re: 72 k20 I never bought the truck so I don't know how they did it but in my old neighborhood there was a little old man with a factory 1969 K20, 4-speed. It had a 292 in it with "8-350" badges on the fenders. I asked him about that. He said the 350 was a dog so at around 18,000 miles he brought it back to the dealer and had them install a 292. The truck had 41,xxx on it when I saw it last in 2002. Long story short it is possible. I would find a donor 71 or 72 that came from the factory with a 292. That way you'd have everything correct which in my experience makes it much easier to get parts when you need them. __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

02-22-2011, 10:49 AM	#4
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 72 k20 The deal with the 292 is it's the only motor with the mounts are staggered. That is what you need to deal with. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~



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