TSP - GM Chevrolet Performance DR525 Engine Controller (28-19354340)
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The all-new Chevrolet Performance DR525 drag racing crate engine, designed as the spec engine for National Muscle Car Association's new LS Stock racing class in the LSX Showdown Challenge Series. This 6.2L (376 cubic inches) naturally aspirated engine is rated at 525 horsepower and features several tamper-proof bolts to ensure class compliance. Chevrolet Performance's custom-calibrated E67-type engine control system (p/n 809-19329003, sold separately) must be used with the DR525 in the LS Stock class. It features a tamper-proof engine control unit.
On the inside, the DR525 crate engine is built with components designed to meet the high standards of competitive racing. The 376 cubic inch aluminum block is packed with a sturdy reciprocating assembly that combines with LS3-type rectangular-port heads to deliver a 10.7:1 compression ratio. A high-lift, hydraulic roller camshaft delivers a whopping 0.525-inch of lift on the 2.16-inch intake valves and 0.525-inch lift on the 1.59-inch exhaust valves, enhancing the LS3's tremendous airflow and broad torque curve.