Comprehensive kit includes the items needed to tune-up Pre Vortec Mercruiser Small Block V8 GM engines with Thunderbolt ignition system.

• Normal annual maintenance items including distributor cap, rotor, spark plugs, spark plug wires, oil filter, fuel filter and fuel treatment
• For Mercruiser Pre Vortec Small Block GM V8 engine models using Thunderbolt ignition and NGK BR6FS spark plugs
• Packaged conveniently in one easy part number to order
• Just add the recommended engine oil