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

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

Bullfrog Performance Products stainless steel intake valve fits 460cc big block engines when cylinder head is machined for this valve size. We offer cylinder head machining to install this larger valve into the 460cc cylinder head. The valve head diameter is 40mm, which is 5mm larger than the stock 460cc valve. We highly recommend this valve when using high lift aftermarket racing cams to prevent valvetrain failure.
Be sure to include our billet aluminum or titanium valve spring retainer kit with our valve.

Bullfrog Performance Products stainless steel exhaust valve for Honda GX390 engines when valve seat is machined to 33mm valve head diameter. We offer cylinder head machining services to install our 33mm exhaust valve in your cylinder head.
We highly recommend this valve when using high lift aftermarket racing cams to prevent valvetrain failure.
Head Diameter = 33mm
Valve Overall Length = 3.650"
Tip Length = .130"

Be sure to purchase our titanium retainer kit or billet aluminum retainer kit to work with this valve!

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.  Our new style head gaskets will not come with the oil hole located on the side of the gasket.  If you need an oil hole the gasket can be drilled to size if need be.

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.

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.

Our chrome moly pushrod kit consists of two chrome moly pushrods that fit the big block Honda GX390 style engines.  Our pushrods measure 6.5" in length and are 5/16" OD with 6mm ball ends (factory ball end size).  These pushrods come assembled ready to drop in your big block clone or Honda GX390 racing engine.

Titanium valve spring retainer kit that fits the big block Honda GX240, GX270, GX340, GX390, 420cc Predator (non-hemi), 460cc Vegas Carts engine (equipped with our stainless steel valves). This titanium valve spring retainer kit includes (2) titanium valve spring retainers and a set of our automotive bead lock style valve locks. Our retainers will fit the single or dual springs out on the market and we also carry them in stock at Bullfrog Performance Products warehouse.

Our big valve kit for the Honda GX340 / GX390 includes the following components:

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.

Engine refresh kit for 500cc big block Honda engines with our 95mm bore piston, billet connecting rod and 10 bolt side cover cylinder block. Includes the following parts to refresh your engine:

• Crankshaft oil seals
• 95mm piston ring set
• ARP rod bolt set
• Oil drain plugs
• Rod bearing set
• Side cover gasket (10 bolt)
• Victor Reinz head gasket
• Valve cover gasket
• Dipsticks
• Intake gasket
• Air filter adapter gasket
• Copper header gasket
• Fiber type header gasket
• Insulator gasket

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

Bullfrog Performance Products billet connecting rod fits Honda GX340, GX390, 420cc clone, 440cc clone and 460cc big block engines.  Our Torq-N-Rev billet connecting rod is CNC machined from 7075 T-6 billet aluminum and includes babbit rod bearing set and ARP rod bolts and washers. This billet rod is 4.450" center to center length.  Heavy duty rod cap and beam design for the most extreme engine setups.  Fits stock piston pin or aftermarket pistons with the standard piston pin diameter.

Bullfrog Performance Products Torq-N-Rev billet connecting rod is manufactured from billet 7075 T-6 aluminum.  Our billet connecting rod includes rod bearings and setup with ARP rod bolts. Our billet rod is +.200" longer than stock length of 4.650" center to center length.  Works with our forged big block piston kits with .900" compression height.

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.

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.