Copper Exhaust Header Gasket for Honda GX390
Bullfrog Performance Products copper exhaust header gasket for Honda GX240, GX270, GX340, GX390, GX610, GX620 and GX690. Will also fit Predator 420cc engines and many other big block clone engines.
Crankshaft Oil Seal for Honda GX390
Crankshaft oil seal fits Honda GX340, GX390, 420cc and 460cc engines. Use this seal on both the PTO or Flywheel side. Engine requires two per engine so order a quantity of two per engine.
ARP Side Cover Bolt for Honda GX390, 460cc
ARP crankcase side cover bolt fits Honda GX340, GX390, 420cc, and 460cc big block clone engines. Order a total of 7 bolts for Honda GX340 and GX390. Order a total of 10 bolts for 460cc big block clone engines.
Head Gasket GX390 MLS
Multi Layer Steel head gasket that fits the Honda GX390 engine. Gasket has 89mm bore to fit the stock bore size on the Honda GX390.
Bronze Valve Guide Set, 6.5mm ID Sold as Pair
Bullfrog Performance Products bronze valve guide set will fit the Honda GX340, GX390 and many other big block clone engines with factory diameter valve stem size of 6.5mm. Our bronze valve guide will outperform in longevity and performance over the factory steel guide. Has closer to the same heat expansion rate as aluminum head for a more stabil valvetrain operation. These are sold as a pair of bronze guides.
Air Filter, 10 Degree Angled 4" Length x 2 3/4" ID
Small engine racing air filter for use in many applications including go karts, mini bikes and many other off road applications. Will fit our 38mm Super BN air filter adapter for the big block Honda GX390.
Starter Nut for Honda GX390
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.