Welcome.


Your Source For

CUSTOM PERFORMANCE ENGINES & ACCESSORIES

We also specialize in custom performance engine packages for many applications including go karts, mini bikes, lawnmowers, mud motors, golf carts or anything you need a performance engine for. Our brands include our Pro-Velocity induction and exhaust systems, Optimizer valvetrain systems and Torq-N-Rev cranks and rods

Shop Now



Featured




Retainer Kit, Billet Valve Spring Retainer Kit for Honda GX390 Retainer Kit, Billet Valve Spring Retainer Kit for Honda GX390
List Price: $29.21
Our Price: $25.40
Sale Price: $22.86
High Performance Air Filter Kit for Honda GX390 w/Outerwears High Performance Air Filter Kit for Honda GX390 w/Outerwears
List Price: $79.24
Our Price: $68.90
Sale Price: $62.01
Copper Head Gasket, Predator 670cc 80mm x .032" Thick Copper Head Gasket, Predator 670cc 80mm x .032" Thick
List Price: $23.71
Our Price: $20.62
Sale Price: $18.56
3 Stage Header for 420cc Big Block Engines 3 Stage Header for 420cc Big Block Engines
List Price: $58.95
Your Price $44.95
Billet Intake Manifold, 38mm Super BN Carburetor to Honda GX390 Billet Intake Manifold, 38mm Super BN Carburetor to Honda GX390
List Price: $67.79
Our Price: $58.95
Sale Price: $53.06
Magnetic Oil Drain Plug, Honda GX390 Magnetic Oil Drain Plug, Honda GX390
List Price: $13.74
Our Price: $11.95
Sale Price: $10.76
GX390 Big Block Bored Carburetor 23.5mm Venturi GX390 Big Block Bored Carburetor 23.5mm Venturi
List Price: $171.35
Our Price: $149.00
Billet Intake Manifold 38mm Super BN Carburetor to Honda GX390 Billet Intake Manifold 38mm Super BN Carburetor to Honda GX390
List Price: $66.70
Our Price: $58.00
Sale Price: $52.20
Air Filter Adapter for Mikuni 38mm Super BN Carburetor Air Filter Adapter for Mikuni 38mm Super BN Carburetor
List Price: $38.95
Your Price $27.50
Sale Price: $19.95
Copper Exhaust Header Gasket for Honda GX390 Copper Exhaust Header Gasket for Honda GX390
List Price: $5.69
Our Price: $4.95
Sale Price: $4.46



New Products

Crankcase Cover Gasket and ARP Bolt Kit Honda GX340, GX390
Our Price: $59.50
Keychain, Remove Before Flight
Our Price: $2.99
Forged Piston Kit, 99mm Bore 1.100" Compression Height Big Block GX390
Our Price: $279.00
Oil Filter for Vegas Carts 625cc Engine
Our Price: $12.95
Crankcase Cover Gasket and ARP Bolt Kit 460cc 10 Bolt
Our Price: $59.50