Quick view DynoCams DynoCams 356 Grind, Tool Steel Billet Cam, Fits GX390 Predator 420 13-16HP Clone The DynoCams 356 is a high lift modified grind that is very capable of extreme RPMs. This cam has very aggressive ramps and requires an upgraded spring package, billet rod, and billet flywheel. For... $215.00 $214.95 Add to Cart
SPECIAL ORDER: 10+ Quick view DynoCams DynoCams MOD1, Welded Lobe 13 HP Cam, Fits GX390, Predator 420, 13-16HP Clone This cam makes slightly more top end power than the 308 grind. This cam requires an upgraded spring package, billet rod, and billet flywheel.Engine: 13HP Fits Honda GX390 SpecsEngine: 390cc OHV Clone... $149.25 $148.95 Add to Cart
SPECIAL ORDER: 10+ Quick view Rotary Corp Fits Honda 30500-zf6-w02 Ignition Coil Also Fits Honda 30500-ZE2-023.Also Fits Honda 30500-ZE2-023. Fits Honda 30500-ZE2-023 Fits Honda 30500-ZF6-W02 Fits 440-101 $44.54 $19.59 Add to Cart
Quick view Rotary Corp FITS DENSO SPARK PLUG W20EX-U AUTOLITE 63, CHAMPION N9YC, FITS DENSO W20EX-U, Fits NGK BP6ESAUTOLITE 63 CHAMPION N9YC FITS DENSO W20EX-U NGK BP6ES $6.49 Add to Cart
Quick view Gage Black Venom 1.3 Ratio Roller Rockers Fits Honda GX390 Predator 420 Non-Hemi The Gage Black Venom Roller Rocker Arms are a high-quality component designed to enhance the performance of your engine.Fits Honda GX390, Predator 420 non-Hemi, and most 13-16 HP Clone engines with... $265.00 $249.00 Add to Cart
Quick view OMB Warehouse Governor Removal Kit Fits Predator 420 Honda GX390 13HP Clones Removing the governor on your stock engine can be done safely and easily with the matched components in this kit! We have included a billet flywheel, billet connecting rod, and all the gaskets needed... $369.95 $359.99 Add to Cart
Sold out Quick view 38 mm Mikuni Flat Slide Carb Kit, Gas, GX390, Predator 420 Genuine 38 mm Mikuni Flat Slide Carb Kit, Gas, GX390, Predator 420, 13HP Clones Kit includes Carb Intake Manifold/adapter Hose Clamps Gaskets Cable Jet kit Bolts Air Filter (no adapter, filter... $305.00 $304.95 Out of stock
Quick view Valve Cover, Billet Aluminum - GX270 & GX390. Light Weight - BLACK High-Quality Lightweight Billet Valve Cover for Big Block Fits Honda 's and 13/15hp Chinese OHVExtra tall to clear roller rockers - Includes pulse fitting and boltsBEST COVER ONย THE MARKETAvailable... $79.95 $74.99 Add to Cart
Quick view OMB Piston Pin and Clips for 390 and 420cc Clone Engines Piston Pin with (2) circlips .788" diameter pin at approx 2.436" length Fits most 13-16 HP Clone engines. $8.95 Add to Cart
Quick view NR RACING Stainless Valve 31.5 mm x 6.5 mm 31.5mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390 Oversize Exhaust Valves and many 13/15 HP... $89.95 Add to Cart
SPECIAL ORDER: 10+ Quick view NR RACING Stainless Valve 35 mm x 6.5 mm 35mm face x 6.5mm stem x 3.465" Long. Stainless Steel. Requires Aluminum or Titanium retainers and split keepers. +.100 Longer than stock Used for GX390/Predator 420 Intake valve. Measure the... $89.95 Add to Cart
Quick view 33 mm Mikuni Pumper Carb Kit, Gas, GX270 GX390, Predator 420 33mm Mikuni Pumper Carb Kit. Kit includes Carb Manifold/adapter Air Filter/velocity stack Air Filter Mounting Hose and Clamps Throttle Cable is not included This a PUMPER Square Slide carb which is... $474.00 $473.95 Add to Cart
Quick view NR RACING Rebuild Kit, Carb, GX240 to GX390: Genuine Honda Genuine OEM Honda Carb Rebuild Kit for GX240-GX390 $17.30 $15.45 Add to Cart
SPECIAL ORDER: 10+ Quick view Hose (Manifold Adapter), 33/34mm Mikuni Straight Adapter for mounting 33/34mm Mikunis on NR Racing tube style manifolds, straight mount (Carb not included) $29.24 $28.99 Add to Cart
SPECIAL ORDER: 10+ Quick view OMB 54# Valve Springs Pair GX240/270/390 Predator 420 Severe Duty Valve Springs - Pair Fits Honda GX 240, 270, 340, and 390, Predator 301/420 (Hemi and non-Hemi heads), and most 13-16 HP Clone engines Made of high-quality alloyApproximately 54lb at 1... $29.14 $27.99 Add to Cart
SPECIAL ORDER: 10+ Quick view DynoCams DynoCams 275 Grind, Tool Steel Billet Cam Fits GX390 Predator 420 13-16HP Clone This cam is to be used in mild modified applications. It will require an upgraded spring package, billet rod, and billet flywheel. Engine: 13HP Fits Honda GX390INTAKELIFT: .276Dur @ .050": 239.5 Deg... $215.00 $214.95 Add to Cart
Quick view Honda Cylinder Head, GX390, UT1 (big port), Bare, Genuine Honda Head isย finished but does not include Valves, Studs, springs, guide plates, seals, etc. For Honda GX390 and Predator 420 NON-HEMI $80.80 $73.99 Add to Cart
SPECIAL ORDER: 10+ Quick view PREDATOR 420 DynoCams MOD 2 Grind, Welded Lobe Cam, Fits GX390, Predator 420 13-16HP Clone DescriptionRequires an upgraded spring package, billet rod, and flywheel. It's also a great cheater stock cam if there are no duration checks.The lobes are hardened for extra durability, extending... $149.25 $148.95 Add to Cart
SPECIAL ORDER: 10+ Quick view NR RACING Breather Hose (Tube), GX270 to GX390: Genuine Honda Genuine OEM Honda Breather Hose (Tube) for GX270 to GX390*Item #7 on diagram (pictured) $8.48 $7.57 Add to Cart
Quick view RLV EXF5041 Clone Pipe, Gx-390 Flange, .995 Id X 12 3/4" Short Side, W/ Mount Exf5043. $41.42 Add to Cart