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Intake Gasket for Honda GX390 Big Block Clone Intake Gasket for Honda GX390 Big Block Clone

Intake gasket for Honda GX340, GX390 and big block clone engines.

Our Price: $1.95
Keychain, Remove Before Flight Keychain, Remove Before Flight

Keychain, Remove Before Flight

Our Price: $2.99
Insulator Gasket for Honda GX390 Insulator Gasket for Honda GX390

Insulator gasket for Honda GX390 engines.

Our Price: $3.25
Custom Aluminum Intake Manifold Pulse Fitting for 1/4"id Hose Custom Aluminum Intake Manifold Pulse Fitting for 1/4"id Hose

Bullfrog Performance Products custom aluminum intake manifold pulse fitting.  Our fitting fits a 1/4"id fuel line hose and has 1/8"npt male thread on the opposite end.

List Price: $5.69
Our Price: $4.95
Sale Price: $4.46
Savings: $1.23
Copper Exhaust Header Gasket for Honda GX390 Copper Exhaust Header Gasket for Honda GX390

Bullfrog Performance Products copper exhaust header gasket for Honda GX240, GX270, GX340, GX390, GX610, GX620 and GX690.  Will also fit Predator 420cc engines and many other big block clone engines.

Our Price: $5.00
Crankshaft Oil Seal for Honda GX390 Crankshaft Oil Seal for Honda GX390

Crankshaft oil seal fits Honda GX340, GX390, 420cc and 460cc engines.  Use this seal on both the PTO or Flywheel side.  Engine requires two per engine so order a quantity of two per engine.

Our Price: $5.00
ARP Side Cover Bolt for Honda GX390, 460cc ARP Side Cover Bolt for Honda GX390, 460cc

ARP crankcase side cover bolt fits Honda GX340, GX390, 420cc, and 460cc big block clone engines.  Order a total of 7 bolts for Honda GX340 and GX390.  Order a total of 10 bolts for 460cc big block clone engines.

Your Price $5.45
Dipstick for Honda GX390, 460cc Big Block Dipstick for Honda GX390, 460cc Big Block

Dipstick fits Honda GX240, GX270, GX340, GX390, GX440 and 460cc big block engines.

Our Price: $6.00
Oil Fill Plug for Honda GX390, 460cc Big Block Oil Fill Plug for Honda GX390, 460cc Big Block

Oil fill plug fits Honda GX240, GX270, GX340, GX390, 440cc and 460cc big block engine.

Our Price: $6.00
Fuel Filter, 90 Degree 1/4" OD Barbs Fuel Filter, 90 Degree 1/4" OD Barbs

Fuel Filter, 90 Degree 1/4" OD Barbs. Fits 1/4" ID fuel line

Our Price: $6.10
Foam Air Pre-Filter 3.5" ID x 5" Length Foam Air Pre-Filter 3.5" ID x 5" Length

Foam pre-filter that fits our 500-1100 performance air filter.

Our Price: $6.58
Solid Side Cover Dowel Pin Kit for Honda GX390 (Includes 2 dowels) Solid Side Cover Dowel Pin Kit for Honda GX390 (Includes 2 dowels)

Solid side cover dowel pin fits Honda GX390 engines.  Order two per engine.

Our Price: $8.00
Foam Air Pre-Filter for Mikuni 38mm SBN Foam Air Pre-Filter for Mikuni 38mm SBN

Foam air pre-filter for our Mikuni 38mm Super BN air filter.

Our Price: $8.00
Main Jet Performance Upgrade Kit For GX390 and Predator 420cc Main Jet Performance Upgrade Kit For GX390 and Predator 420cc

Our main jet kit is a must for the Honda GX390, Predator 420cc engines that have had the performance K&N style air filter setup installed on the engine. Maximizes the engine for best performance and air fuel ratio.

Our Price: $8.14
Fuel Filter, Stainless Steel Element 1/4" Barbs Red Color Fuel Filter, Stainless Steel Element 1/4" Barbs Red Color

Fuel Filter that has a Stainless Steel Element with 1/4" Barbs to fit 1/4" ID fuel line. Red Color

Our Price: $8.30
Fuel Filter, Stainless Steel Element 1/4" Barbs Green Color Fuel Filter, Stainless Steel Element 1/4" Barbs Green Color

Fuel Filter that has a Stainless Steel Element with 1/4" Barbs to fit 1/4" ID fuel line. Green Color

Our Price: $8.30
Fuel Filter, Stainless Steel Element 1/4" Barbs Blue Color Fuel Filter, Stainless Steel Element 1/4" Barbs Blue Color

Fuel Filter that has a Stainless Steel Element with 1/4" Barbs to fit 1/4" ID fuel line. Blue Color

Our Price: $8.30
Insulator with Pulse Fitting for Honda GX390 Insulator with Pulse Fitting for Honda GX390

Insulator with pulse fitting for Honda GX390 engines.

Our Price: $8.95
Autolite Xtreme Performance Spark Plug Predator 212cc, Honda Autolite Xtreme Performance Spark Plug Predator 212cc, Honda

  • Engineered to meet or exceed OE designs and withstand the extreme operating temperatures experienced during a powersports engine's combustion
  • Iridium-enhanced 0.6mm finewire design for improved ignitability, faster fuel combustion and a more focused ignition versus standard plugs
  • Up to 26 percent quicker starts compared to that of standard plugs and as much as 21 percent less hydrocarbon emissions than standard plugs, which promotes better fuel efficiency and horsepower

Our Price: $8.95
Header Flange for Honda GX390 Header Flange for Honda GX390

Bullfrog Performance Products header flange fits the Honda GX390 engines.  Great item for the DIY person who wants that custom header design.

Our Price: $9.00
Side Cover Gasket, 7 Bolt Side Cover Honda GX390, 420cc Big Block Side Cover Gasket, 7 Bolt Side Cover Honda GX390, 420cc Big Block

Honda GX390 side cover gasket.  Fits all 7 bolt GX390 engines and 7 bolt 420cc big block engines.

Our Price: $10.00
Side Cover Gasket, 10 Bolt 460cc Big Block Side Cover Gasket, 10 Bolt 460cc Big Block

10 bolt side cover gasket for the 440cc and 460cc 10 bolt side cover

Our Price: $10.00
Air Pre-Filter Outerwears 3 1/2" ID Air Pre-Filter Outerwears 3 1/2" ID

Outerwears air pre-filter for our 500-1100 performance air filter.

Our Price: $11.95
Main Bearing for Honda GX390, 420cc, 460cc Main Bearing for Honda GX390, 420cc, 460cc

Main bearing for Honda GX340, GX390, 420cc and 460cc engines.   Requires two per engine.  (These are sold individually one bearing).

Our Price: $12.00
Copper Head Gasket, Honda GX390, 460cc, 500cc Big Block Copper Head Gasket, Honda GX390, 460cc, 500cc Big Block

Copper head gasket available in a variety of bore and thickness ranges for the big block Honda GX390, 460cc, 500cc engines.  Select the gasket below that fits your build:

Our Price: $18.00
Sale Price: $12.00
Savings: $6.00
Head Gasket fits Honda GX390 .010" Thick Head Gasket fits Honda GX390 .010" Thick

This head gasket fits Honda GX390 88mm bore and is .010" thick.

Our Price: $12.95
Fuel Filter, 90 Degree 1/4" OD Barbs (Pack of 3) Fuel Filter, 90 Degree 1/4" OD Barbs (Pack of 3)

Fuel Filter, 90 Degree 1/4" OD Barbs. Fits 1/4" ID fuel line. Pack of 3 filters!

Our Price: $12.95
Starter Nut for Honda GX390 Starter Nut for Honda GX390

Starter nut for Honda GX340, GX390 and many other big block clones including 420cc Predator, 440cc and 460cc clones.  Uses 3/4" socket drive on end to start engine.

Our Price: $17.95
Sale Price: $13.95
Savings: $4.00
Outerwears Air Pre-Filter for Mikuni 38mm SBN Outerwears Air Pre-Filter for Mikuni 38mm SBN

Outerwears air pre-filter for our Mikuni 38mm Super BN air filter.

Our Price: $14.00