Chevrolet Performance 19370171 - Big Block 58X Conversion Kit

Enables the use of the latest aftermarket electronic control systems to convert your BBC to a "Coil-on-Plug" system or use the LS computer to control your Big Block Chevrolet. The options for choosing an electronic control system when using this conversion kit are unlimited only by your technical ability imagination. 58X Reluctor Wheel - Installs in front of the crankshaft timing gear 4X Camshaft Timing Gear New Front Cover - With camshaft position and crankshaft position sensors Heavy Duty Double Roller Chain Coil Packs and ECM are NOT Included! NOTE: Timing cover bolt pattern is for MARK5 & 6 Big Blocks. Kit Components 19370158 - Timing Cover 12568787 - Timing Chain 19256787 - Cam Gear 12568790 - Crank Gear 12595966 - Crankshaft Position Sensor 12591720 - Cam Position Sensor 19256786 - Reluctor Ring 11519133 - Bolt M6X1 20MM UHL 11562458 - Timing Cover Bolts (4) This kit can be made to fit older MARK 4 Blocks but only after extensive fabrication work. It is not plug and play! The MARK 4 has more timing cover bolt locations and these will not be used with this cover and the oil pan design is different from the Mark 5 and 6 oil pans. Timing set interference is possible with some blocks (especially older blocks) you must check fitment and clearance prior to final installation. Depending upon your application and front pulley system, the harmonic balancer may require machining to the mounting hub to account for the added dimension of the reluctor wheel for proper front drive pulley alignment. Previous Part Number was 19260247.