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Re: '71 Chevy Medium Duty Video
Very true, lots of CS/CE 40 and 50 ex-farm trucks still around.
Funny thing, the 427 was indeed an excellent heavy truck gas engine, and Ford really didn't have a competitor for it. Ford had the FT 391 which could not match the 427's horsepower or torque. The larger 'Super Duty' V-8's available in Ford heavy trucks were more expensive, very heavy, and had poor fuel economy. In the mid-70's Ford came out with a '475' version of the Super Duty V-8 for the F series medium duty trucks which still produced less horsepower than the 427 (200 vs. 220). In 1979 Ford introduced the Lima 429 truck engine which finally was competitive with the 427.
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1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.
Last edited by Bob B.; 06-08-2025 at 05:10 PM.
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06-08-2025, 04:56 PM
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