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Registered User
Join Date: Mar 2012
Location: Milwaukie, Oregon
Posts: 59
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1966-81 Chevy H/J Series
What do you remember of the 1966 to 1981 Chevrolet H/J series 93" BBC conventional cabs?
(1966 Series HV70 with Detroit Diesel 6V-53N engine) (1978-81 Bruin Series HY80 with Cat 3208 engine) (1978-81 Bruin Series JJ90 with Detroit Diesel 6V-92TA engine - it's the light blue truck) HOW TO IDENTIFY AN H/J SERIES 1966-1968 = Red Chevy bow tie logo on hood, C-H-E-V-R-O-L-E-T lettering on grille just below. Tonnage series emblem (70 for diesel models and 80 for gas models) is on front fender right next to the cab door. 1969-1972 = Blue Chevy bow tie logo on hood, same lettering style for grille as '66-'68. With the 1970 addition of the Series 90 (and related engines, including the Detroit Diesel 6-71 and 8V71), some models with the tilt-open hood had a different grille. Tonnage series badge (70/80/90), with the same blue Chevy bow tie and red background where tonnage series number is, is slightly re-located. 1973-1981 (except Bruin) = Gold Chevy bow tie on hood, same lettering style for grille on models with butterfly hood as '66-'68, and same grille on models with tilt-open hood as '70-'72. Same tonnage series emblem placement as '69-'72. 1978-1981 Bruin = Newer gold Chevy bow tie on hood, and grille below (on tilt-open hood models) loses the C-H-E-V-R-O-L-E-T lettering. Bruin emblem is on front fenders, and the Chevrolet 80/90 Diesel emblem is on cab door. Starting in mid-1979, series designations were streamlined. All models in series 70/80 become J80s regardless of axle setup, and the same went for all series 90s that became J90s. So, how would one designate a tandem-axle series J90 internally in regards to the '79-'81 Bruins? ENGINES GMC 401 V-6 = used on gasoline Series 80 models with engine code "?" (1966-74) GMC 478 V-6 = used on gasoline Series 80 models with engine code "?" (1966-74) Chevy 427 V-8 = used on gasoline Series 80 models (incl. Bruin) with engine code "?" (1975-81) Detroit Diesel 6V-53N = used on diesel Series 70/80 models (incl. Bruin) with engine code "V" (1966-81) Detroit Diesel 6-71N = used on diesel Series 90 models (incl. Bruin) with engine code "I" (1970-81) Detroit Diesel 6V-92T/TA/TT/TTA = used on diesel Series 90 models (incl. Bruin) with engine code "J" (1976-81) Detroit Diesel 8V-71N = used on diesel Series 90 models (incl. Bruin) with engine code "H" (1970-81) Chevy Toro-Flow DH-478 = used on diesel Series 70 models with engine code "M" (1966-72) Chevy Toro-Flow D-637, DH-637 = used on diesel Series 70/90 models (the latter with 93" BBC only) with engine code "J" (1966-72) Cat 3208 = used on diesel Series 70/80 models (incl. Bruin) with engine code "Y" (1975-81) Cummins N series (NH-230, NTC-290, NTC-350, et al) = used on diesel Series 90 models (incl. Bruin) with engine code "N" (1970-81) Cummins V-903, VT-903 = used on diesel Series 90 models (116" BBC only) with engine code "?" (1970-76) Please feel free to reply with any additions or corrections. Thank you, Ben Edge Last edited by ClassicTVMan1981X; 03-14-2012 at 06:51 PM. |
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chevrolet bruin, chevy bruin, h-series, j-series |
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