In, TRUE, RK TEK Fashion, we have developed a kit to take your 850 or 900 Patriot Engine to the next level, in terms of, Performance AND Reliability!    

 This kit requires NO DOWN-TIME!! We send you the parts and you install when you want!

RK TEK were the originators of the "DROP IN" Kit clear back in 2001!!

This, UNIQUE, approach to developing engine performance WITHOUT "Breaking the Bank" has led to thousands of VERY happy customers with GREAT perforing engines!!

OK, So what is a "DROP IN" Kit?   Simply stated--> It is kit that will alter your cylinder's porting arrangement via a custom piston!  This is, essentially, a FREE PORT JOB without having to send us your cylinder!

This is accomplished by using a VERY Custom Dual Ring (stock is Single Ring) piston that alters the port heights. We add our ,Patented, Combustion Chamber to the package and you have a kit that is  easy to install with not alterations!

This Patented Chamber design can be installed into your Stock Head (ie Cheater Head option) OR in our Custom FULL BILLET HEAD shell.

Either option yields the same performance gains. The Cheater Head option is less money and is"hidden" from any "nosey" viewers (ie race events etc.)

This kit will add SIGNIFICANT Torque and HP to your engine!

It will require NO ECU tuning--> BUT---> We do have ECU tunes available for even better performance!