Stainless Steel Intake Valve for 460cc, 40mm Head
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.
Stainless Steel Exhaust Valve 33mm Head Diameter GX390
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!
Pushrod Kit, Chrome Moly Big Block 6.5" Length x 5/16" OD x 6mm Ball Ends
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 Honda GX390 Big Block
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.
Stainless Steel Valve and Titanium Retainer Kit GX390
Our big valve kit for the Honda GX340 / GX390 includes the following components:
- 40mm head stainless steel intake valve 3.650" length
- 33mm head stainless steel exhaust valve 3.650" length
- Titanium valve spring retainers
- Automotive bead lock style valve locks
Our kit does require your head to be machined to fit these valve head sizes. We do offer cylinder head machining at our facility and can machine your cylinder head or purchase a fully machined cylinder head from us ready to go.
Hot Coil for Honda GX390 Big Block Clone
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!
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. 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.
Bullfrog Torq-N-Rev Big Block Billet Connecting Rod GX390 4.450" Length
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.
Our Price: $223.00
Sale Price: $179.95
Bullfrog Torq-N-Rev Billet Connecting Rod, Honda GX390 4.650" +.200" Longer Than Stock
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 Price: $223.00
Sale Price: $179.95
Clutch, Bully Turbo 1" (less drive gear)
Bully Turbo 1" clutch for GX390, 460cc and V-Twin big block engines with 1" diameter output shaft. This clutch sku doesn't include the drive gear as they are sold separately on our website.