• Engineered to meet or exceed OE designs and withstand the extreme operating temperatures experienced during a powersports engine's combustion
• Iridium-enhanced 0.6mm finewire design for improved ignitability, faster fuel combustion and a more focused ignition versus standard plugs
• Up to 26 percent quicker starts compared to that of standard plugs and as much as 21 percent less hydrocarbon emissions than standard plugs, which promotes better fuel efficiency and horsepower

Starter nut for Honda GX340, GX390 and many other big block clones including 420cc Predator, 440cc and 460cc clones.  Uses 3/4" socket drive on end to start engine.

Electric starter block off plate fits Honda GX340, GX390, and 460cc big block clone engines.

Bullfrog Performance Products Hot Coil is designed for the Honda GX340, GX390 and Big Block Clone racing engines that need that hotter spark for your racing engine.  Our coil and wire package has a built-in capacitor that boosts the spark at your plug for increased throttle response and power!

Bullfrog Performance Products Hot Coil is designed for the Honda GX340, GX390 and Big Block Clone racing engines that need that hotter spark for your racing engine.  Our coil and wire package has a built-in capacitor that boosts the spark at your plug for increased throttle response and power!

Bullfrog Performance Products Hot Coil is designed for the Honda GX340, GX390 and Big Block Clone racing engines that need that hotter spark for your racing engine.  Our coil and wire package has a built-in capacitor that boosts the spark at your plug for increased throttle response and power!