YAMAHA YZ 250 2 STROKE PERFORMANCE
RK TEK IS 100% CONFIDENT IN THE PERFORMANCE OF THESE 250cc AND 300cc HEADS!
SKI-DOO 500SS and TNT Engine
This over-bore turns your 600cc engine into a 662cc engine. We use the same piston in this kit that is used in out...
Ski Doo 800R Dual Ring Replacement Pistons
Our pistons have a geometric design that is specifically for the rigorous use that a snowmobile engine subjects the...
Sherco Billet Heads
RK TEK IS 100% CONFIDENT IN THE PERFORMANCE OF THESE 250cc AND 300cc HEADS!
Series III - Rotax Twin Engine Heads
Heads for Series III (600,600 RS, and 800) and IV (800R) Ski-Doo Motors
POLARIS PRO and AXYS 858 CFI Big Bore
If you are looking for HUGE TORQUE and HP Gains.. then look no further.
Polaris Patriot 850/900 Billet Heads
Torqueline Series Polaris 850 / 900 Patriot Billet Heads
Polaris Patriot 850 and 900 Dual Ring Direct Replacement Pistons
2019-Newer 850 and 900 Patriot Engine Dual Ring Replacement Pistons
Polaris 800 Cheater Heads
Polaris 800 CFI Direct Replacement Piston Kit
POLARIS 800 (2008-2020)CFI and AXYS "Direct Replacement Piston Kit NO HEAD REQUIRED!
Polaris 800 CFI 12HP or 20HP Drop In Kit
2008-Present (AXYS ALSO) POLARIS 800 CFI 12HP or 20HP "Drop In" Piston/Head Kit 2 DIFFERENT KITS TO CHOOSE FROM. BOTH...
POLARIS 600 Twin Performance Kits
This kit will AMAZE you in how they transform the 600 power-plant from a slightly "LAZY" 600 to a "Torque-Monster"...
Polaris 600 Twin Drop In Kit
Polaris 600 Twin Drop In Kit
This kit will AMAZE you in how they transform the 600 power-plant from a slightly "LAZY" 600 to a "Torque-Monster"...
Polaris 600 Cheater Heads
PATRIOT 850 and 900 DROP IN KITS
RK TEK has developed an AWESOME Drop In Kit for the Patriot 850 and 900 Power-Plants
Oil Cap Replacements
Tired of the MESS associated with your Ski Doo, Polaris or Arctic Cat Oil Tank?
OEM Head Reshape
RK TEK IS 100% CONFIDENT IN THE PERFORMANCE OF THESE 250cc AND 300cc HEADS!
KTM & Husqvarna Cheater Heads
The Cheater Heads have been discontinued. We still offer the Full Billet and the Head Re-Shape
Honda CR 500 Heads
Make no mistake this head is the forerunner and most others just try and duplicate its stellar performance
Honda ATV Heads
Make no mistake this head is the forerunner and most others just try and duplicate its stellar performance
Gas Gas Cheater Heads
RK TEK IS 100% CONFIDENT IN THE PERFORMANCE OF THESE 250cc AND 300cc HEADS!
GAS GAS 250 & 300 2 STROKE PERFORMANCE
The Stock head is a VERY inefficient design and leaves A LOT of Performance on the table. We have spent many hours...
GAS -GAS /RIEJU 200cc,250cc ,& 300CC Custom Billet Heads
RK TEK IS 100% CONFIDENT IN THE PERFORMANCE OF THESE 250cc AND 300cc HEADS!
Direct Replacement Piston Kit
POLARIS 800 (2008-Present) CFI and AXYS "Direct Replacement Piston Kit NO HEAD REQUIRED!
Cylinder Porting
AS OF 2005.. RK Tek is porting cylinders using CNC Vertical Machining Centers (CNC porting). This assures EVEN porting...
Billet Heads
Our "Hemi" design utilizes tighter squish clearances and a narrow squish band which will increase combustion efficiency...
Big Bore Kit
RK Tek spent a better part of the 2008 Season developing a performance package for the new Rotax 800R(ETEC is the SAME...
BETA - Custom Billet Heads
RK TEK IS 100% CONFIDENT IN THE PERFORMANCE OF THESE 250cc AND 300cc HEADS!
Arctic Cat PRO,M-8 & F8 925cc Big Bore Kit
The RK Tek 925cc Big Bore kit is quite different from other Big Bore Kits on the market. This kit uses a VERY custom...
Arctic Cat Pro Climb 8000, M-8, and Fire-Cat 800 Lay-down
Our "QUAD"Head is nothing short of AMAZING! This head will completely change the way your engine performs! There is NO...
Arctic Cat M-8 & F8
The 800 Lay-down engine is the engine that requires the most attention. In fact, it is surprising that this engine even...
