Aftermarket Blower Housing for Honda GX340, GX390, 460cc Big Block Engines

Copper Head Gasket, 95mm Bore .021" Thick

Copper head gasket that fits our 95mm Big Block Honda Clone blocks and is .021" thick.

Copper Head Gasket 95mm Bore .032" Thick

Copper head gasket fits our 95mm Big Block Honda Clone blocks and is .032" thick.

95mm Head Gasket for Big Block Engines

Victor Reinz performance head gasket specifically designed for Bullfrog Performance Products.  Our head gasket fits our 95mm bore big blocks and is Made In USA!.  Our head gasket has a 95mm bore and is .043" thick.

96mm Head Gasket for Big Block Engine (No Oil Feed Hole)

Victor Reinz performance head gasket specifically designed for Bullfrog Performance Products.  Our head gasket fits 96mm bore big blocks and is Made In USA!.  Our head gasket has a 96mm bore and is .043" thick and does not have the oil feed hole made into gasket.

Shaft Mounted Stamped Steel Rocker Arm Set Big Block

A Shaft-Rocker eliminates the need for a guideplate and prevents the rocker arms from walking side-side. Furthermore, they have considerably more ridgidity than stud rockers.
These have a 1.1:1 Ratio and includes the studs and nuts to install the rockers in your engine.

Mud Motor Exhaust Header for Honda GX390, Predator 420cc Big Blocks

Long tube loop exhaust header for the Honda GX340, GX390, 420cc Predator, 460cc big block clone engine for mud motor boat application. Header pipe give your engine more low to mid range torque specifically for mud motor boats.

Billet Valve Cover, Honda GX390 Big Block w/Cooling Fins

Our billet valve cover for the big block engine features our unique integral cooling fins for additional valve spring chamber cooling. Our billet valve cover is the lightest cover on the market and includes a reed valve system built into the cover design. You can throw away your stock valve cover gasket as our cover comes with an o-ring seal that promotes better clamping force and eliminates oil leaks. The other billet valve covers on the market do not have the machining time put into their valve cover to make them work as a bolt on piece. Our cover is taller than the factory valve cover so it will clear any roller rocker arm on the market. You will also receive our custom machined aluminum crankcase breather fittings.

Bullfrog Performance Products billet valve cover fits big block engines listed below:

• Honda GX240
• Honda GX270
• Honda GX340
• Honda GX390
• Powerhorse 414cc
• Vegas Carts 460cc
• LCT 414cc

Our big block billet valve cover will only fit the wedge style head and it will not fit the hemi heads on Predator 420cc.

Forged Piston Kit, 95mm Bore 1.100" Compression Height Big Block GX390

Our 95mm bore big block forged piston kit is designed for our 95mm big bore blocks.  Our piston has a 1.100" compression height and fits ARC Racing 4.410" or 4.450" billet connecting rods.

Forged Piston Kit, 99mm Bore 1.100" Compression Height Big Block GX390

Our 99mm bore big block forged piston kit is designed for our 99mm big bore blocks.  Our piston has a 1.100" compression height and fits ARC Racing 4.410" or 4.450" billet connecting rods.