These RTS Black Premium Series Flexplate's are made for high performance street car drivetrains. RTS flexplate made specifically for our Holden Chevrolet LS and other popular performance cars. Each flexplate is dynamically balanced to eliminate potentially damaging vibrations and electro-coated black for protection from the elements. Fits most LS-series Gen III and Gen IV Chev Holden Commodore, 6.0, 6.2 and 7.0 litre V8 engines using a 6 bolt crankshaft flange. Drilled for 10.75" small GM converter bolt pattern and also 11.062" (281mm) LS style converter bolt pattern. Includes a converter pilot adapter that is needed if you are using a converter originally made to fit older small or big block Chevy (non-LS). Flexplate is .035" thicker than stock and the starter ring is welded to both sides of the flexplate for additional strength. Constructed from a high tensile strength material this flexplate resists elongation and cracking. Features: Internal Balanced Engine Dual Pattern 10.75'' & LS 11.06'' Inch Bolt Pattern Convertor Mount Crank Pilot To Converter Adaptor Included, To be used in non LS applications Black Plated Finish 168 Tooth Ring Gear Street/Strip Applications Black Plated RTS Quality Will not suit 8-bolt crank (LSA) Note: Must use ARP 244-2901 Flexplate Bolts to clear inner crank ring. Please check your bolt spacing before purchase. Includes a converter pilot adapter that is needed if you are using a converter originally made to fit older small or big block Chevy (non-LS).