Texas Speed & Performance LS1 Cylinder Head Upgrade - Big Power Small Change

Texas Speed's Stage 2.5 Heads Pour On The Power For Our LS1 Part II: Installation And TestingIn "LS1 Power Plan" (HPP Aug.-Oct. '08), our subject '00 WS6 T/A registered 381.1 rwhp and 365.8 lb-ft of torque, having gained an impressive 62.1 hp and 36.5 lb-ft. That "cam-only" configuration was both powerful and well mannered on the streets, and it put down a 12.79 e.t. at 109.59 mph to back up the dyno numbers.


Photo Gallery: Texas Speed & Performance LS1 Cylinder Head Upgrade - Big Power Small Change - High Performance Pontiac


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