Search results
Results From The WOW.Com Content Network
The 1974 models featured a redesigned "shovel-nose" front end and new wide "slotted" taillights. The 400, 455, and SD-455 engines were offered in the Trans Am and Formula models during 1974. A June 1974 test of a newly delivered, privately owned SD-455 Trans Am appeared in Super Stock and Drag Illustrated. With an unmodified car and a test ...
The 1971 455 HO was rated at 335 hp (250 kW) at 4,800 rpm and 480 lb⋅ft (651 N⋅m) of torque at 3,200 rpm . The 1971 455 HO was available in the Firebird (optional in Formula; standard in Trans Am), the GTO (standard with "The Judge" package), and the 2-door LeMans, LeMans T-37 (including GT-37), and LeMans Sport.
The 1974 models featured a redesigned "shovel-nose" front end and new wide "slotted" taillights. The 400, 455, and SD-455 engines were offered in the Trans Am and Formula models during 1974. A June 1974 test of a newly delivered, privately owned SD-455 Trans Am appeared in Super Stock and Drag Illustrated. With an unmodified car and a test ...
The SD 455 was available for one more year in the Trans Am. As emissions regulations were increasing, two of the three iterations of the 455 cu in (7.5 L) engine were discontinued after 1974, with the final version of the 455 remaining available through 1976. [29]
For premium support please call: 800-290-4726 more ways to reach us
For premium support please call: 800-290-4726 more ways to reach us
In mid-March 1971, a second design change for the GT-37 switched the striping to a reflective sword-style stripe sometimes referred to as the 1971 ½ GT-37. 1971 also afforded the customer the opportunity to choose any of Pontiac's optional V8s such as 350, 400, or 455 cubic inch models, including the 455 High Output (HO) engine. The 455 had ...
The Pontiac brochure indicated the same 455 installed in the Grand Prix model was rated at 370 hp (280 kW). The camshafts used in the "Ram Air" 400 and the GTO 455 HO were the same. For example, manual transmission 455 HOs used the same 288/302 duration cam as the "Ram Air" 400. The 455 was rated at 360 hp (270 kW) at 4,300 rpm.