Product Details

Polaris 800cc cfi 2008-12' billit head with interchangable domes, with applications set up for pump gas, race or turbos.

Our new dome design creates  noticable arm pulling power and provides more efficient performance with less chance of detonation and better cooling.

12, 11.5-1T, 12.3T, 12.5, 13.5, 14 & 15.5-1race compression ratios

Uses stock head cover for the stealth look, your riding partners won't know you have extra hp under the hood.

The new Polaris updated heads are 12-1 compression, low for high altitude riders, install a Terra Alps Racing head and get the advantage over your competition. Add our porting package and take it to the next level.

 

2011-2012 800' for more power is our shim kit with our billit head, for the stock pistons. Go from the stock 12-1 compression to our 13-1 compression domes for high elevation riders. Add 10hp for $499.95

In testing a clients 2011 Pro rmk with the Terra Alps head and shim kit 13-1 compression outperformed the SLP kit by 5 lengths + in an up hill drag.

 

Billit head $449 cdn.

Cylinder Porting  $500 cdn.

Case Porting $200 cdn.

DynoJet PCV fuel controllers $439.95 and fuel maps for stock and piped sleds.

Dobeck Fuel controllers $439.95

 

MTN. RIDERS & TURBOS

* Our latest Polaris 800 cfi mods consist of a better set of cast reliable pistons, better designed with less chance of rocking in the cylinder and proper piston clearance. Our billit head and dome design to make max power with proper squish clearance. We change the port timing to better suite the mtn guys and turbo kits, or those riding low elevation. Kit comes with  cylinder shim, gaskets, pistons, rings, and wrist pin bearings. 

#TARP816-10 $879.95

 

Thermostat kit for 08-2012 Polaris 800 cfi sleds, billit housing $159.95, thermostat $69.95, bypass hose and tee $29

 

Call or email for your application

 

We have complete performance packages for your Polaris! Engine, clutching, exhaust, venting, chassis...