Trans Am Engine
It was a very oversquare engine lightweight for it s displacement.
Trans am engine. It was rated at 185 horsepower and 320 foot pounds of torque. Pontiac offered three engines in the 1977 trans am special edition. Engine codes production figures. It was only available with an automatic.
First up was the l80 oldsmobile 403 v8. In 1970 with the move to the second generation f body platform the trans am had begun to build an identity for itself and the following year pontiac decided to counteract corporate rules on engine compression ratios by fitting the trans am with a massive 455 ci v8. 1971 trans am 455 h o. Find here some figures that i found over the years taken from different sources i found they are pretty accurate.
The ho engine also included ram air iv. By 1998 the ls1 was under the hood of every trans am and formula rated 305 hp at 5200 rpm and 335 lb ft of torque at 4400 rpm. Trans am specialties of florida llc phone. The ws6 package cranked that up to 320 hp and 345 lb ft and in 2001 both versions got a 5 hp and torque bump thanks to a new camshaft and the ls6 intake from the z06 corvette.
This engine was primarily used in california and other high altitude locations. The 455 engine was available in the l75 325 hp 242 kw version and the ls5 335 hp ho version which was the standard and only engine option for the trans am. Here in california just about all the trans am s and formula 400 s had olds 403 power from 77 on. In base configuration the 79 trans am came with an oldsmobile sourced 403 cu in.