CHEV LS3 6.2L DR525 525HP GM PERFORMANCE CRATE ENGINE # 19434599Big Power LS 376ci, DR525 for the Drag Strip Normal LS3 Pan Chevrolet Performances DR525 sealed drag racing crate helps enable exciting heads up racing at a lower cost than custom built engines. Its an approach Chevrolet Performance implemented in a number of circle track racing series, providing racers with a high performance engine at a great value. The DR525 is designed as the spec engine for NMCAs LS Stock racing class in the LSX Showdown