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B16A / B18C C30A / C32B SR20DET 2JZ NON VVT-i 2JZ VVT-i EJ205 G6DA V6 4G63 CHEVY LS
B18A / B18B K20A / K20Z KA24DE 1JZ B58B30 EJ207 G4KF 4G63 EVO VIII DODGE SRT4
H22 / H22A K20A3 / K24A VQ35 / VQ37 7MGTE 2AZFE EJ257 / EJ255 VW / AUDI 4G63 EVO IX FORD COYOTE
F20C / F22C D16Y8 TB48 3SGTE 4AGE EJ257B DUAL 1.8T 4B11 EVO X DIESEL TRUCK
MISC RB26 / RB30 1GRFE 4UGSE FA20 MAZDA 6G72 JEEP
VR38DETT 3URFE 1FZFE BMW MZR
MISC MISC M50
POLARIS HONDA YAMAHA CAN-AM KAWASAKI
XP 1000 TALON YXZ X3 KRX
XP TURBO
CAMSVALVE TRAINRODSPISTONSSTROKER KITSCRANKSHEADS / CASES
POLARIS RZR XP 1000 / TURBO HEADS / CASES

There’s big horsepower gains to be made from proper cylinder porting and TPR Industry's CNC ported cylinder head for the Polaris XP1000 and XP Turbo applications deliver the best flow characteristics in terms of strength, direction, and condition of the air/fuel charge as it enters the cylinder through the intake valve. If you have exceptional charge motion, the cylinder will continue to fill even after the piston hits bottom dead center (BDC) and the air/fuel charge will evenly disperse in the chamber. All of this working cohesively makes horsepower.

TPR has spent weeks hand porting numerous heads, then hours on the flow bench analyzing all of the hand ported chamber and port designs and integrating only the best features into one CNC program to deliver the absolute best cylinder head money can buy. We have done extensive R&D, thousands of miles of testing, both on the dyno and out in the field, in order to determine the absolute best performing combination of parts that also delivers unprecedented durability. We don’t compromise on quality and these heads are basically works of art compared to other industry offerings, therefore these heads, with TPR’s full 5-axis CNC ported intake, exhaust and combustion chambers, are not sold as bare units.

All TPR heads come fully loaded with only the best Brian Crower valve train components, including valve springs wound by PAC in single beehive or dual designs, both featuring extra processing procedures to enhance performance. Your choice of titanium (beehive only) or tool steel retainers, +1mm stainless steel intake valves and Nimonic (Inconel) on the exhaust side in a massive +3.8mm oversize head diameter to greatly enhance the flow characteristics of a factory head that was intentionally dumbed down by Polaris for emissions purposes. The TPR/BC head package only features 4140 alloy, DLC coated buckets/cam followers...we’ve seen enough worn out/dished buckets to make this a mandatory feature on all TPR/BC head offerings. Also included - ARP cam cap/cam gear bolt kit, as well as BC custom bronze guides and valve seals.

The TPR/BC cylinder heads are offered in the following:

#TPR090 - Brand new Polaris #3023319 CNC ported cylinder head with BC valve train and ARP cam cap/cam gear bolt kit. Price based on customer supplying new head for exchange.
#TPR091 - Brand new Polaris #3023319 CNC ported cylinder head with BC valve train and ARP cam cap/cam gear bolt kit. Price based on customer supplying used head (upon inspection).
#TPR092 - Brand new Polaris #3023319 CNC ported cylinder head with BC valve train and ARP cam cap/cam gear bolt kit. Price is based on no core exchange.
#TPR093 - Used, fully refurbished Polaris cylinder head CNC ported cylinder head with BC valve train and ARP cam cap/cam gear bolt kit. Price based on customer supplying used head (upon inspection).
#TPR094 - Used, fully refurbished Polaris cylinder head CNC ported cylinder head with BC valve train and ARP cam cap/cam gear bolt kit. Price is based on no core exchange.

These head packages are also available with your choice of BC camshafts (or stock cams) fully installed, lashed and ready to bolt onto the jug. Please specify this option when ordering. ProXP cylinder head (#3023564) option also available.

Part # Description # Buy Kit Status
TPR090 CNC PORTED NEW POLARIS (#3023319) CYLINDER HEAD, FULLY LOADED w/NEW CORE EXCHANGE In-Stock
TPR091 CNC PORTED NEW POLARIS (#3023319) CYLINDER HEAD, FULLY LOADED w/USED CORE EXCHANGE (upon inspection) In-Stock
TPR092 CNC PORTED NEW POLARIS (#3023319) CYLINDER HEAD, FULLY LOADED w/NO CORE EXCHANGE In-Stock
TPR093 CNC PORTED USED CYLINDER HEAD (Subject to Availability), FULLY LOADED w/USED CORE EXCHANGE (upon inspection) In-Stock
TPR094 CNC PORTED USED CYLINDER HEAD (Subject to Availability), FULLY LOADED w/NO CORE EXCHANGE In-Stock
Note: The above cylinder head packages come without camshafts installed. If you want stock cams, BC regrinds or BC new cams (XP1000 only), please specify when ordering and pricing for the head package will be adjusted accordingly.

Note: ProXP cylinder head (#3023564) or RS1 cylinder head (#3023237) options also available. Please specify when ordering. Note: #3023319 and #3022716 are basically the same head.

INTAKE
VALVE LIFT/CFM
OEM/STOCK BC/TPR
.050 51 58
.100 95 107
.150 140 142
.200 178 179
.250 219 221
.300 250 258
.350 269 281
.400 277 298
.450 281 311
EXHAUST
VALVE LIFT/CFM
OEM/STOCK BC/TPR
.050 36 56
.100 78 96
.150 117 132
.200 141 158
.250 161 183
.300 167 195
.350 172 205
.400 175 212
.450 177 218
POLARIS RZR XP TURBO / XP1000 HEAD GASKETS
Cometic gaskets combine advanced materials with state-of-the-art manufacturing processes to provide custom-tailored solutions to meet the needs of each individual application. The MLX head gasket is comprised of a three layer setup - Viton coated embossed spring steel outer layers surround a steel inner layer that provides support and thickness to the gasket. Embossments on the gasket allow for a proper seal around oil and water passages.

Part # Description # Thickness Buy Now Status
BC8290-1 GASKETS - Cometic (Polaris RZR XP Turbo, XP1000) - 3 Layer, .028" Thickness, works with 93, 94 and 95mm Bore .028" In-Stock
BC8290-2 GASKETS - Cometic (Polaris RZR XP Turbo, XP1000) - 3 Layer, .052" Thickness, works with 93, 94 and 95mm Bore .052" In-Stock
BC8291 GASKETS - Cometic (Polaris RZR XP Turbo, XP1000) - 3 Layer, .030" Thickness, works with 98mm .030" In-Stock


POLARIS RZR XP TURBO / XP1000 BASE GASKETS
Cometic gaskets combine advanced materials with state-of-the-art manufacturing processes to provide custom-tailored solutions to meet the needs of each individual application. The base gasket is comprised of a rubber coated stainless steel in various thicknesses from .008" / .014" / .015" / .020" or aluminum base shim in various thicknesses from .032" / .040" / .050" / .080" / .125" / .250". Call for availability.

Part # Description # Bore Buy Now Status
BC8280 RUBBER BASE GASKETS - Cometic (Polaris RZR XP Turbo, XP1000, XP900) - Rubber Coated Stainless Specify In-Stock
BC8281 ALUMINUM BASE GASKETS - Cometic (Polaris RZR XP Turbo, XP1000, XP900) - Aluminum Base Shim Specify In-Stock
619.749.9018 ph
619.749.9128 fx
Some products listed are not legal for sale or use on emission controlled motor vehicles, RPM ranges vary on application.Warranty Information Copyright © Brian Crower Inc. All rights reserved..
WARNING: This product can expose you to chemicals, including Chromium (hexavalent compounds), lead and lead compounds, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov