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Air Filter Adapter for Mikuni 38mm Super BN Carburetor Air Filter Adapter for Mikuni 38mm Super BN Carburetor

Bullfrog Performance Products air filter adapter for Mikuni 38mm Super BN carburetor.

List Price: $38.95
Your Price $27.50
Sale Price: $19.95
Savings: $19.00
Cylinder Deck Spacer 1/2" Thick Big Block Cylinder Deck Spacer 1/2" Thick Big Block

Bullfrog Performance Products cylinder deck spacer fits 460cc big blocks with 92mm bore x 1/2" thick and is used to increase the deck height of the cylinder block.  It is preferred to weld our spacer onto your block and re-sleeve the cylinder for best results.

List Price: $43.47
Our Price: $37.80
Sale Price: $34.02
Savings: $9.45
Cylinder Deck Spacer 1/4" Thick Big Block Cylinder Deck Spacer 1/4" Thick Big Block

Bullfrog Performance Products cylinder deck spacer fits 460cc big blocks with 92mm bore x 1/4" thick and is used to increase the deck height of the cylinder block.  It is preferred to weld our spacer onto your block and re-sleeve the cylinder for best results.

List Price: $43.47
Our Price: $37.80
Sale Price: $34.02
Savings: $9.45
Cylinder Deck Spacer 1/2" Thick Big Block Cylinder Deck Spacer 1/2" Thick Big Block

Bullfrog Performance Products cylinder deck spacer fits 460cc big blocks with 92mm bore x 1/2" thick and is used to increase the deck height of the cylinder block.  It is preferred to weld our spacer onto your block and re-sleeve the cylinder for best results.

List Price: $43.47
Our Price: $37.80
Sale Price: $34.02
Savings: $9.45
Cylinder Deck Spacer 1/4" Thick Big Block Cylinder Deck Spacer 1/4" Thick Big Block

Bullfrog Performance Products cylinder deck spacer fits 460cc big blocks with 92mm bore x 1/4" thick and is used to increase the deck height of the cylinder block.  It is preferred to weld our spacer onto your block and re-sleeve the cylinder for best results.

List Price: $43.47
Our Price: $37.80
Sale Price: $34.02
Savings: $9.45
Bullfrog Pro Velocity High Performance Air Filter Kit for Honda GX390 Bullfrog Pro Velocity High Performance Air Filter Kit for Honda GX390

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 Price: $44.95
10 Bolt Side Cover for 460cc Engines 10 Bolt Side Cover for 460cc Engines

10 bolt side cover for 460cc big block clone engines.

List Price: $57.44
Our Price: $49.95
Sale Price: $44.96
Savings: $12.48
10 Bolt Side Cover for 460cc Engines 10 Bolt Side Cover for 460cc Engines

10 bolt side cover for 460cc big block clone engines.

List Price: $57.44
Our Price: $49.95
Sale Price: $44.96
Savings: $12.48
Cylinder Block, 460cc 10 Bolt 92mm Bore Cylinder Block, 460cc 10 Bolt 92mm Bore

Bullfrog Performance Products 92mm 460cc cylinder block.  Our block features a 10 bolt side cover and a tall deck to allow for even more stroke without the piston popping up above the deck.  Our cylinder block accepts all Honda GX390 internals, including camshaft, lifters and cranks seals.

List Price: $120.69
Our Price: $104.95
Sale Price: $94.46
Savings: $26.23
Cylinder Block, 460cc 10 Bolt 92mm Bore Cylinder Block, 460cc 10 Bolt 92mm Bore

Bullfrog Performance Products 92mm 460cc cylinder block.  Our block features a 10 bolt side cover and a tall deck to allow for even more stroke without the piston popping up above the deck.  Our cylinder block accepts all Honda GX390 internals, including camshaft, lifters and cranks seals.

List Price: $120.69
Our Price: $104.95
Sale Price: $94.46
Savings: $26.23