By the numbers for 1972. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**special-K** · 05-05-2022, 07:12 AM

Someone is creating info for the sake of conversation. As Jocko and I have said, no stats on RPO numbers were kept by GM. Look at all the internal information that SS Tim was able to dig up that no one else seemed to be able to. The RPO stats we discussed as non-existent.

As far as the 396 bored to 402 goes, I always figured it was for the same reason the 283 went to 307 the 327 went to 350, and the 427 went to 454. All manufacturers bumped up displacement once emissions standards were put in place and compression was reduced.

I know the 400 SBC was offered in trucks later in the '70s.

05-05-2022, 07:12 AM	#16
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,859	Re: By the numbers for 1972. Someone is creating info for the sake of conversation. As Jocko and I have said, no stats on RPO numbers were kept by GM. Look at all the internal information that SS Tim was able to dig up that no one else seemed to be able to. The RPO stats we discussed as non-existent. As far as the 396 bored to 402 goes, I always figured it was for the same reason the 283 went to 307 the 327 went to 350, and the 427 went to 454. All manufacturers bumped up displacement once emissions standards were put in place and compression was reduced. I know the 400 SBC was offered in trucks later in the '70s. __________________ "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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