Quick view ARC Racing (2) Pack of GX240/GX390/Predator 420 Heavy Duty 50# Valve Springs 2 Pack of Heavy Duty Valve Springs for Honda GX240, GX270, GX340, & GX390.Approx 50 lbs at 1.125 installed height, 42lbs at 1.2, with 110 lb open pressure (.375 lift). $12.99 Add to Cart
Quick view Valve Grinding Compound 120 and 220 Grit High temperature grease for lapping, grinding, sharpening and polishing metal surfacesContains sharp, graded and extremely hard grains of silicone carbide. Two .75 ounce tubes included Helps in... $12.79 Add to Cart
Quick view Feeler Gauge - .0015" to .015" Use for setting valve clearance.Has 9 leaves, 0.0015, 0.002, 0.003, 0.004, 0.006, 0.008, 0.010, 0.012, 0.015 Sets consist of 1/2" wide leaves nested in a steel frame. Each leaf is clearly marked with... $9.99 Add to Cart
Quick view Predator Champion Shaft Mounted 1.1:1 Rocker Arms GX390 Predator 420 Shaft Mounted 1.1:1 Ratio Rocker Arms for GX390, 420 OHV, and 460cc These are the famous "Champion" HD shaft rockers for GX390 and 420 OHV engines. They are arguably the best bang for your buck when... $28.99 Add to Cart
Quick view ARC Racing GX390 Dual Valve Spring Set GX390 Dual Valve Spring SetGX390 Dual Valve Spring Set65lbs at 1.125" installed height. 60lbs at 1.2" installed height. $16.99 Add to Cart
Quick view NR RACING Split Keepers for Stainless Valves with 6.5mm Stems Split Lock Keepers for Aluminum Retainers for 6.5mm Stainless Valves (GX270, GX390, and 13/15 hp Clones) Sold as a pair (2 keepers) to do 1 Valve $7.99 Add to Cart
Quick view Billet valve Cover GX390 Predator 420 Non-Hemi High Quality Lightweight Billet Valve cover for Big Block Fits Honda s and 13/15 Hp Chinese OHV Extra Tall to clear Roller Rockers.ย Includes Pulse fitting and boltsBEST COVER ON THE MARKET $74.99 Add to Cart
Quick view Cut to Length Chrome Moly Pushrod, 1/4" Fits Predator 420 and GX390 *Depending on availability, pushrods may be black anodized or uncoated. Heavy Duty Chrome Moly Pushrods. Considerably stiffer than stock. Use with all HD springs. Capable of 10,000 RPM +. Pushrod,... $16.95 Add to Cart
Quick view NR RACING Lash caps, 6.5 mm, Hardened for Stainless Valves (GX270 & GX390), Pair Lash cap for Racing Valves for 6.5 mm (GX390 and 13 hp) stems. Used to correct Valve Train Geometry (Required with Roller Rockers), Pair $9.99 Add to Cart
Quick view Pushrod Length Checker - Big Block Adjustable Push Rod tool for checking for proper pushrod length. Adjust from approx 1.2". Must be used with stock springs. perfect for determining proper pushrod length and valve geometry. DO NOT RUN... $29.99 Add to Cart
Quick view NR RACING Aluminum Retainer for 6.5 mm Valves Aluminum Retainer for use with split keepers. Use with HD/Dual Springs & SS Valves. 6.5mm Valve Stem RETAINERS ARE SOLD INDIVIDUALLY - 2 REQUIRED PER MOTOR KEEPERS ARE NOT INCLUDED - ORDER... $6.99 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 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 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
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
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
