Projects


GM Transmission Development Underway at Lentech

After over 20 years of offering industry leading Ford overdrive transmissions, Lentech Automatics is currently evaluating a GM overdrive lineup. In response to the growing popularity of the LS engine platform on the performance scene, we purchased a Chevrolet SSR to serve as a testbed for the first product we plan to offer: a 6 speed 4L80E based overdrive. This will perfectly compliment the modified all-aluminum 5.3L (LM4) engine, and add better durability and performance over the original 4L60E. Come back to visit this page as we update with more photos, and add videos.

Latest Projects
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Project Specifications

Project: 2004 Chevrolet SSR
Stock Engine: 300 hp, 5.3L all-aluminum V8 (RPO LM4)
Original transmission: GM 4L60E
Stock dyno result: 268 rwhp
Best stock 1/4 mile: 15.38@88 mph
Engine upgrades: Total Engine Airflow CNC heads, LJMS cam (219/224 @ 0.050, 0.606/0.603 lift), Stainless Works 1 7/8 longtube headers and true dual exhaust, GM Vortec 8100 fuel injectors,
Upgraded transmission: Lentech 6 speed 4L80E (paddle shift coming soon)
Modified dyno result: 369 rwhp/339wtq
Best to date 1/4 mile: 14.46@97mph
Power adder: Nitrous Outlet 78mm GM truck plate kit
Nitrous dyno results: 412whp/400wtq (50 shot), 475whp/455wtq (100 shot)

We would like to thank the following sponsors / partners for their involvement in Project SSR

 

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