{"id":8655,"date":"2015-12-24T14:10:44","date_gmt":"2015-12-24T18:10:44","guid":{"rendered":"https:\/\/engineswapdepot.com\/?p=8655"},"modified":"2020-10-14T13:55:24","modified_gmt":"2020-10-14T18:55:24","slug":"1981-firebird-trans-am-with-a-twin-turbo-ls9","status":"publish","type":"post","link":"https:\/\/engineswapdepot.com\/?p=8655","title":{"rendered":"1981 Firebird Trans Am with a Twin-Turbo LS9"},"content":{"rendered":"

\"1981<\/a><\/p>\n

When this 1981 Pontiac Firebird Trans Am rolled out of the factory it was sporting a 301 ci (4.9 L) turbocharged V8. Schwartz Performance<\/a> has since turned it into a pro-touring machine along with increasing the displacement and adding another turbo.<\/p>\n

\"1981<\/a><\/p>\n

Schwartz started by upgrading the foundation with one of their G-Machine bolt-in full length frame. This gave them the ability to easily upgrade just about every other component such as the Ridetech triple-adjustable coilovers and Baer Extreme-Plus six-piston brakes in both front and rear. <\/p>\n

\"1981<\/a><\/p>\n

Under the hood you will find a LS9 with Wiseco forged internals, ported heads, Eagle LS7 crank and LS7 dry sump system. Combine that with two 70 mm turbos and you get 1,041 horsepower and 858 lb-ft of torque to the rear wheels.<\/p>\n

\"1981<\/a><\/p>\n

\"1981<\/a><\/p>\n

Connected to the engine is a Bowler Performance 4L85E automatic transmission, custom length driveshaft, Winters 9″ aluminum housing with Moser 9″ aluminum center section. Capping this off is a Wavetrac differential with 3.70 gears and Moser full-floating hubs and axles.<\/p>\n

\"1981<\/a><\/p>\n

\"1981<\/a><\/p>\n

\"1981<\/a><\/p>\n

\"1981<\/a><\/p>\n