HOP UP KITS FOR BIG BLOCK HONDAS

HOP UP KITS FOR BIG BLOCK HONDAS & CLONES
GX240 Kits GX270 Kits GX340 Kits GX390 Kits

HOP UP KITS FOR GX240 & GX270s and 8/9 hp CLONES All kits require Aftermarket Exhaust and/or Header to work properly.
STAGE 1 KIT (GX240/270s)
Basic kit for improving the performance of GX270, 390s, and Clones. Simple to install, you can expect significant performance increases. Stage 1 Kit $76 Stage 1 Kit includes Race/Open Air Filter & Adapter, Honda Jet for application, HD Valve Springs Offset Timing Key, Optional Header/Exhaust Optional Carbs (includes insulators)		STAGE 1 HOP KIT ORDER FORM Select Options below and click button to add to shopping cart GX240 $76 GX270 $76 Select Fuel Type Gas $0 Methanol +$13 E85 +$13 Select Misc Options Add Header $65 Add Muffler & Clamp $55 Add GX390 Carb, includes insulator & gaskets $65 Add Bored GX390 Carb $104 Total Cost
STAGE 2 KIT (GX240/270s)
As step up from the Stage 1, this kit is designed to further improve the power for the GX240s and GX270s by adding a larger crab and cam. Stage 2 Kit for GX240/270s $271 Includes Race/Open Air Filter & Adapter GX390 Carb GX390 Insulator HD Valve Springs Offset Timing Key 250 Lift Cam Carb and Side Cover Gaskets Optional Header/Exhaust		STAGE 2 HOP KIT ORDER FORM Select Options below and click button to add to shopping cart GX240 $271 GX270 $271 Select Fuel Type Gas $0 Methanol +$13 E85 +$13 Select Misc Options Add Header $65 Add Muffler & Clamp $55 Upgrade to Bored GX390 Carb $45.5 Add Connecting rod with bearing (crank must be ground) $130 Add Crankshaft cut for bearing $156 Total Cost
STAGE 3 KIT (GX240/270s)
The 3 kit starts with package similar to that of the stage 2 kit but adds a Ported and Milled Head with stainless, stainless valves, stud kit, & HD valve train components. Stage 3 Kit for 240s and 270s $629 Includes Race/Open Air Filter & Adapter, Choice of Carbs Choice of Cams Ported Head, Milled .100" Stainless valves Aluminum Retainers & Split Keepers Chrome Moly Pushrods Single or Dual Springs 8 degree Timing Key, Carb, Head, & Case gaskets Stud Kit Reinforced Rocker Arms Optional Roller Rockers Optional Header/Exhaust Note: Rod must have bearing installed for motor to survive.		STAGE 3 HOP KIT ORDER FORM Select Options below and click button to add to shopping cart Select Hop Up Kit: Honda GX240 $819 Honda GX270 $819 Select Carb GX390 Bored - gas $0 GX390 Bored - Methanol +$13 GX390 Bored - E85 +$13 32/34 Roundslide Mikuni - Gas +$104 34 Flatslide Mikuni - Gas +$169 33 Mikuni Pumper - Gas +$325 33 Mikuni Pumper - Alky +$377 Select Camshaft 250 Lift (OEM 390 cam) 280 0207 (Pulling cam) 280 0607 (Mild cam for larger tracks) 300 0407 (Small Tracks) 300 0807 (Med to large tracks) Select Springs Single (250 and 280 cams) Dual (320 and higher, Must cut head) Select Misc Options Add Header $65 Add Muffler & Clamp $55 Roller Rockers (includes spacer) $312 Add Connecting rod with bearing (crank must be ground) $130 Add Crankshaft cut for bearing $156 Total Cost
HOP UP KITS FOR GX340 & GX390s and 11/13 hp CLONES All kits require Aftermarket Exhaust and/or Header to work properly.
STAGE 1 KIT (GX340/390s)
Basic kit for improving the performance of GX270, 390s, and Clones. Simple to install, you can expect significant performance increases. Stage 1 Kit $76 Stage 1 Kit includes Race/Open Air Filter & Adapter, Honda Jet for application, HD Valve Springs Offset Timing Key, Optional Header/Exhaust Optional Carbs		STAGE 1 HOP KIT ORDER FORM Select Options below and click button to add to shopping cart GX340 $76 GX390 $76 Select Fuel Type Gas $0 Methanol +$13 E85 +$13 Select Misc Options Add Header $65 Add Muffler & Clamp $55 Add GX390 Carb (GX340s) $45.5 Add GX390 Bored Carb $91 Total Cost
STAGE 2 KIT (GX340/390s)
As step up from the Stage 1, this kit is designed to improve the power for the GX340s and GX390s along with improving the durability. Stage 2 Kit for GX340/390s $597 Includes Race/Open Air Filter & Adapter Choice of Carbs HD Valve Springs Offset Timing Key 280 Lift Cam Reinforced Rockers Billet Rod Carb and Side Cover Gaskets Optional Header/Exhaust Optional Aluminum Flywheel		STAGE 2 HOP KIT ORDER FORM Select Options below and click button to add to shopping cart Select Hop Up Kit: Honda GX340 $597 Honda GX390 $597 Select Carb GX390 Bored - gas $0 GX390 Bored - Methanol +$13 GX390 Bored - E85 +$13 32/34 Roundslide Mikuni - Gas +$104 34 Flatslide Mikuni - Gas +$169 33 Mikuni Pumper - Gas +$325 33 Mikuni Pumper - Alky +$377 Select Camshaft 280 0207 (Hi Torque, Small tracks) 280 0607 (Med to large tracks) Select Misc Options Add Header $65 Add Muffler & Clamp $55 Aluminum Flywheel $234 Total Cost
STAGE 3 KIT (GX340/390s)
The 3 kit starts with package similar to that of the stage 2 kit but adds a Ported and Milled Head with stainless, stainless valves, stud kit, & HD valve train components. Stage 3 Kit for 340s and 390s $987 Includes Race/Open Air Filter & Adapter, Choice of Carbs Choice of Cams Ported Head, Milled .100" Stainless valves Aluminum Retainers & Split Keepers Chrome Moly Pushrods Single or Dual Springs 8 degree Timing Key, Billet Rod Carb, Head, & Case gaskets Stud Kit Reinforced Rocker Arms Optional Roller Rockers Optional Header/Exhaust Optional Aluminum Flywheel Note: Rod must have bearing installed for motor to survive.		STAGE 3 HOP KIT ORDER FORM Select Options below and click button to add to shopping cart Select Hop Up Kit: Honda GX340 $987 Honda GX390 $987 Select Carb GX390 Bored - gas $0 GX390 Bored - Methanol +$13 GX390 Bored - E85 +$13 32/34 Roundslide Mikuni - Gas +$104 34 Flatslide Mikuni - Gas +$169 33 Mikuni Pumper - Gas +$325 33 Mikuni Pumper - Alky +$377 Select Camshaft 250 Lift (OEM 390 cam) 280 0207 (Pulling cam) 280 0607 (Mild cam for larger tracks) 300 0407 (Small Tracks) 300 0807 (Med to large tracks) 320 0607 Select Springs Single (250 and 280 cams) Dual (320 and higher, Must cut head) Select Misc Options Add Header $65 Add Muffler & Clamp $55 Roller Rockers (includes spacer) $312 Aluminum Flywheel $234 Total Cost

Pictures are for reference only.