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(Currently Out of Stock) BSP New and Improved Crankshaft. (2.130-2.133 GUARANTEED)

$49.99 

BSP New and Improved Crankshaft. Balanced, Hardened, and heat treated. (2.130-2.133 GUARANTEED) Now with less flex. Best and strongest on the market!

( Temp Out Of Stock ) Aluminum Powder Coated Air Filter Adapter Kits (Many Colors)

Price varies based on options. 

BSP Clone Aluminum Powder Coated Air Filter Adapter Kit (Many Colors).

( Temp Out Of Stock ) Block (crankcase)

$48.99 

Block (crankcase)

( Temp Out Of Stock ) GUARANTEED Light Weight Lifter Set (18-18.3 grams)

$12.00 

GUARANTEED Light Weight Lifter Set (18-18.3 grams).

( Temp Out Of Stock) JT-223 (NEW) Cylinder Head

$22.99 

(NEW) Cylinder Head

(NEW) JRPW Attack Series AKRA or NKA Machined Head.

Price varies based on options. 

JRPW Attack Series AKRA or NKA Machined Head.

(TEMP OUT OF STOCK) (BLACK) Original Box Stock Project 6.5HP OHV (196cc) Engine

$145.99 

Original Box Stock Project 6.5HP OHV (196cc) Engine (Assembled) Now with the new BSP-4 Cam Installed NEW (Race Ready Ruixing Carburetor, Tuned and Jetted Main .038", Low Speed .022")

(Temp Out Of Stock) Air Filter (Angled)

$9.00 

Air Filter (Angled)

(Temp Out Of Stock) BSP Die Cast Aluminum Flywheel

$39.99 

OEM Die Cast Aluminum Flywheel for Box Stock Project engines. It's BALCO certified and spin tested to 10,000 RPM's. Weight is 3.18 pounds. Fits 196cc and 212cc clone motors!

(TEMP OUT OF STOCK) BUILT IN AMERICA WITH PRIDE BY THE BOX STOCK PROJECT INC.

Price varies based on options. 

BUILT IN AMERICA WITH PRIDE BY THE BOX STOCK PROJECT INC.

(Temp Out Of Stock) CL4 Low Duration NKA Racing Cam

$47.99 

The CL4 is specifically designed for the NKA rule package. With no minimum duration requirements, we were able to smooth the nose of the cam allowing it to rev well into the 7000 RPM range. The CL4 shows gains in the 6600 RPM range over our current CL3. T

(TEMP OUT OF STOCK) Original Box Stock Project (Black Out) Engine Kit with ARC Flywheel

$330.99 

Original Box Stock Project (Black Out) Engine Kit with ARC Flywheel NEW BSP-4 Race Cam