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Detroit Diesel Engine Numbering

The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel

The numbering is as follows:

  • first digit = number of cylinders
  • – or V = inline or vee
  • 2-digit series = 71
    • roughly corresponds to the nominal displacement per cylinder in cubic inches (i.e. 71 cu in)
  • Suffix = additional features
    • N = needle unit fuel injectors
    • T = turbocharger
    • TA = turbocharger with after-cooling
    • TT = Tailored Torque

Source: Wikipedia


So, an 8V-71 is a V-configuration 6-cylinder 71 cu in engine.

8-71 vs. 8V-71

So, an 8-71 is an inline 8-cylinder while an 8V-71 is a vee-configuration 8-cylinder engine.

Pages on this site about 8V-71

#8005 – Western Greyhound Lines
#8005 - Western Greyhound

This 1955 PD-4501 Scenicruiser was delivered, new, to Pacific Greyhound Lines in 1956.

In the mid-1960s Western Greyhound re-seated these “Travis” buses to 47 passengers to service route between San Francisco-Travis AFB in Fairfield, CA.

In Spring of 2003, the Pacific Bus Museum acquired this bus from the used equipment dealer.

4-Speed Manual, Detroit Diesel, Equipment Broker (Phil Monte), General Motors, General Motors, Greyhound, Marmon-Herrington, Melni Bus Service, Pacific Greyhound Lines, Parlor, Spicer, Western Greyhound Lines

PBM1 – Scenicruiser Party Bus
#PBM1 - Scenicruiser Party Bus

This 1955 PD-4501 Scenicruiser was delivered new to Southwestern Greyhound Lines in January 1956.

This Scenicruiser was customized for promotional use by the makers of Red Bull energy drink.

It was donated to the Pacific Bus Museum by Steven Hofmann in June 2023

4-Speed Manual, Allison, Automatic, Detroit Diesel, General Motors, General Motors, GM Truck & Coach Division, Greyhound, Parlor, Red Bull, Southwestern Greyhound Lines

#2623 – Yosemite Community College District
1964 Motor Coach Industries (MCI) model MC-5

This Motor Coach Industries (MCI) model MC-5 was delivered new to Western Greyhound Lines in March 1964.

#2623 was acquired by Yuba College in 1978. In 2000 it was acquired by the Yosemite Community College District in Modesto, CA

In 2011 it was acquired by Pacific Bus Museum member, Tom Harris, who donated #2623 to the Pacific Bus Museum in 2017.

4-Speed Manual, Detroit Diesel, Greyhound, Intercity Coach, Motor Coach Industries (MCI), Western Greyhound Lines, Yosemite Community College, Yuba College

#172 – Las Vegas-Tonopah-Reno Stage Lines

This General Motors PD-4106 was delivered new to Las Vegas-Tonopah-Reno (LTR) Stage Line in 1964.

The bus was donated to the PBM in 1996 along with the five other buses of Richard Twining’s historical bus collection.

4-Speed Manual, General Motors, General Motors, GM Truck & Coach Division, Intercity Coach, Las Vegas-Tonopah-Reno (LTR) Stage Line, Office of Defense Transportation, Oregon Coachways

Paddle Archives mentioning 8V-71


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