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Intake Gasket for Honda GX390 Big Block Clone Insulator with Pulse Fitting for Honda GX390 Air Filter Adapter, Fits Honda GX340, GX390
Intake gasket for Honda GX340, GX390 and big block clone engines. Insulator with pulse fitting for Honda GX390 engines. Our air filter adapter fits factory carburetor for Honda GX340 and GX390 engines. Also fits 420cc and 460cc engines with stock carburetor.
Be sure to order your air filter and pre-filter along with your air filter oil and cleaner.
Bullfrog Pro Velocity High Performance Air Filter Kit for Honda GX390 Header, Fits LCT 414cc and Duromax big block engines with Angled Exhaust Flange AFTERMARKET 38mm 40mm SQUARE PUMP SUPER BN REBUILD KIT
Our Pro Velocity high performance air filter kit fits Honda GX340, GX390, Predator 420cc and 460cc big block clone engines. Upgrade your go kart, mini bike or drift trike with our high performance air filter kit. Our kit includes the following items:

  • High flow racing style air filter 4" filter length
  • Foam Pre-Filter
  • Radiused air filter adapter
  • Choke hold bracket
Our karting header will fit LCT 414cc and some DuroMax big block angled exhaust port big block heads. Kit includes all necessary diaphragms, gaskets, and hardware required to disassemble and rebuild Mikuni BN34, BN38, BN44 and BN46 square pump and round pump carburetors
Needle and seats sold separately
Kits sold per carburetor
High Performance Air Filter Kit for Honda GX390 w/Outerwears High Performance Air Filter Kit for Honda GX390 w/Outerwears
High performance air filter kit that fits Honda GX340, GX390, Predator 420cc and 460cc big block clone engines. Upgrade your go kart, mini bike or drift trike with our high performance air filter kit. Our kit includes the following items:

  • High flow racing style air filter 4" filter length
  • Outerwears Pre-Filter
  • Radiused air filter adapter
  • Choke hold bracket
High performance air filter kit that fits Honda GX340, GX390, Predator 420cc and 460cc big block clone engines. Upgrade your go kart, mini bike or drift trike with our high performance air filter kit. Our kit includes the following items:

  • High flow racing style air filter 6" filter length
  • Outerwears Pre-Filter
  • Radiused air filter adapter
  • Choke hold bracket