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 GX390 engines. Our crankshaft oil seal is made from Viton material to withstand higher operating temperatures. Use this seal on both the PTO or Flywheel side of the engine. Engine requires two per engine so order a quantity of two per engine.
ARP Side Cover Bolt for Honda GX390, GX440
ARP crankcase side cover bolt fits Honda GX340, GX390, 420cc, GX440 and 460cc big block clone engines. Order a total of 7 bolts for Honda GX340 and GX390. Order a total of 10 bolts for GX440 and 460cc big block clone engines.
List Price: $7.98
Your Price $5.45
Header Flange, Honda GX390 Big Block Clone
Our exhaust header flange is 1/4" thick and CNC machined for the DIY person who needs to custom make an exhaust system.
List Price: $11.49
Our Price: $9.99
Sale Price: $8.99
Header Flange for Honda GX390
Bullfrog Performance Products header flange fits the Honda GX390 engines. Great item for the DIY person who wants that custom header design.
Klotz Nitro Power Additive
Works with either gasoline or methanol fuels to increase horsepower and torque of modified engines.
List Price: $14.94
Our Price: $12.99
Sale Price: $11.69