McLeod - RST Street Twin (LT1/LT4/LSA)RST Twin Disc Clutch Kit. 9 11 16 x 1 1 8 x 26 Spline. Steel Flywheel 8 Bolt Crank 168T LS X 2014 2015 C7 Chevrolet Corvette LT1 LT4 2009 2012 Cadillac CTS V LSA 2012 2015 Chevrolet Camaro ZL1 LSA Intended for the high horsepower street fan, the McLeod RST twin disc clutch kit is an economically priced twin disc clutch kit. Able to handle 1000hp, this clutch can handle almost any horse power you can throw at it and still remain street able. Organic