400
SCRAMBLER/SPORT/TB -
|
|
| |
|
Reed
Spacer
Kit 400
|
THIS
ITEM IS ON SALE!
$25.00!!
For
Polaris 400 only. Increases horsepower and extends reed life.
A must for big bores, to correct primary compression.
|
|
|
|
Race
Porting

|
Designed
for the 400 Polaris engine. This porting makes this engine the
horsepower champ stock cylinder 400 Polaris ATV's. Tremendous power
from a wide, hard hitting power band, and it's still dependable.
Produces 73 to 75 horsepower at 7450 RPM with the proper additional
parts. 70 plus horsepower in under 2 seconds on a warmed up engine.
This baby lights fast!
Requirements: Race
modifications
|
|
|
|
Trail
Mod Porting
|
Designed
for the 400 Polaris ATV. The trail mod cylinder porting is worth
8 more peak horsepower. Excellent all around performance.
Requirements:An
HPD
trail
or
race
pipe,
clutch
kit
and
forged
piston.
92
Octane
fuel.
Billet
head
(BHPG12)
with
girdle
kit
are
recommended. |
PART
# TMC
LIST
$300.00
Fill
out this form to send with mods |
|
|
 |
Bore
Cylinder
Send
us your cylinder, and we will bore, hone and chamfer the ports.
Fill
out this form to send with mods |
Remove
.04" to .08" material
PART # BORE+
LIST $75.00
|
Remove
up to .04" material
PART # BORE
LIST $65.00
|
Big
Bore- Remove .1" or more
PART # BOREBB
LIST $85.00
|
|
| |
Trail
Head Mod
Head
machining designed for the 400 trail porting and 92 octance pump
gas. Improved all around power with
trail porting.
|
PART
# TMH
LIST $70.00
Fill
out this form to send with mods |
|
Billet
Head, Cover & O-Rings

A
must have for the Polaris racers
and performance riders.
Our
billet, 2 piece head, is a complete design, and not just a machined copy
of the original stocker. It provides concentric water flow, thus preventing
hot spots. Sealed to the cylinder with O-rings to create a metal to metal
contact, providing even engine temperatures. The improved combustion
chamber pocket and squish area, increases horsepower and torque. Additionally,
the head allows girdling through the cylinder to the crankcase, providing
a much stronger and durable package.
Girdle
kit is optional.
Not for use on 416 PowerMAXX.
|
Trail
Mod 400s
Designed for stock, piped or trail mod 400s on 92 octane fuel. Improved
torque and horsepower.
|
Trail
Mod 400s
Big bore head for 86.5mm to 87.5mm bore for use with trail mod engines
on 92 octane.
|
Trail
or Race Ported 400s
Big bore head for 108 octane race gas on trail or race ported engines.
Best horsepower.
|
|
|
|
Billet
Head Girdle Kit
For
Polaris 400 cyl. only (not for use on 416 POWER MAXX products). |
|
Drill
Cylinder
for Girdle Kit |
For
Polaris 400 cyl. only (not for use on 416 POWER MAXX products).
Send in Cylinder to HPD for modification. |
Fill
out this form to send with mods |
|
|
Replacement
Chambers for Billet Heads
Often
copied but never duplicated.
 |
ChamberType:
Pump Gas 400
Gas Type: 92 Octane/Pump
|
ChamberType:
Big Bore PG
Gas Type: 92 Octane/Pump
|
ChamberType:
Big Bore RG
Gas Type: 108 Octane/Race
|
|
|
|
|
|
| |
|
|
Flywheel
Lightening

Flywheel
not included ... send us your flywheel and HPD can dynamically
spin balance your flywheel to .5 grams. Prices are for the labor
to machine and balance your flywheel to race or trail specs. |
400
Trail Lightening
Removes 1 pound and keep the electric start. Responds noticeably faster
than stock.
PART
# LF
LIST: $105.00
Fill
out this form to send with mods |
400
Race Lightening
Removes electric start and lightens flywheel by 2.3 pound. Make engine
rev extremely fast.
PART
# LFR
LIST $115.00
Fill
out this form to send with mods |
|
400
Sports or Scramblers Trail
or Trail Mod Pipes
This
is an excellent all around pipe. Produces 7 to 9 more
peak horsepower. Good low end with excellent mid and
top. Also good for use on trail ported engines as used by GNCC
Champ Dave Heider and other top competitors such as Neil Belcher.
Runs 6750 to 6850 RPM. Supplied with mounting hardware and jets. NOTE: Clutch
kits required.
Click here for 400
Dyno Chart
|
 |
Fits 98-03 Scrambler & 99-03 Sport and Trail Blazer. Ceramic
finish.
PART
# ATVP8
LIST $225.00
NOTE: Clutch
kit required.
|
|

Fits
all 400s and 250s with HPD Pipe.
Scramblers, Sports, and Trailblazers. |
MSA
Spark Arrestor Muffler
Weighs
only 3 lbs. Muffler body is 3 inches in diameter and 12 inches
long. This muffler is forestry approved, repackable, and is 93
DB. Aluminum construction only. |
PART
# MSA
LIST $153.00
|
|

Fits
all 400s and 250s with HPD Pipe.
Scramblers, Sports, and Trailblazers. |
MTD
Muffler
Weighs
only 3lbs. Muffler body is 2.5 inches in diameter and 13 inches long,
with 2 silencing chambers. This muffler is repackable, and is 96 DB
Not forestry approved. Good power. Steel construction. |
Black
muffler
PART # MTD
LIST $70.00
|
|
HPD’s
Adjustable Clutch Weight Kits
|
We
have found, what we believe are the best Adjustable Weights available.
We are stocking 4 versions of these weight kits. Designed to get
the power to the ground. They have a very aggressive curve for
a faster up shift, and are adjustable in three areas, Low, Mid
and Top End. The Low End is adjustable without removing the weight
from the clutch. |
50-66 Grams
PART #AWHH 50-66
LIST $230.00
|
60-76 Grams
PART #AWHH 60-76
LIST $230.00
|
65-81 Grams
PART #AWHH 65-81
LIST $230.00
|
55-71 Grams
PART
#AWHH 55-71
LIST $230.00
|
|
Aggressive
Clutch Kits

Kit
includes: Helix, weights, 2 springs, installation guide, and
shims (if needed).
Aggressive
clutch kits are faster accelerating, plus more mid
range response. Back shift is improved at all speeds.
These kits also improve belt life. All have been tested
for accuracy on dynoed engines with on board computers.
This is the best performing trail set up. |
400
Sport/Scrambler
(Race)
Designed
to be used with race ported motor and ATVRP8 pipe.
PART
# CK4RM8
LIST $190.00
|
400
Sport/Scrambler
(Trail)
With
trail pipe and/or trail porting. Higher engagement than stock.
PART
# ATVCK4MA
LIST $190.00
|
400
Drag Race Mod
Designed
to be used with race ported motor and ATVRP8 pipe.
PART
# ATVCK4DR
LIST $190.00
|
|
CLICK
HERE FOR CLUTCH SPRINGS
CLICK
HERE FOR CLUTCH WEIGHTS |
|
Single
Throttle Cable for Polaris -
Metal
Throttle
Part # STC
 |
Single
Throttle Cable for Polaris -
Plastic Throttle
Part # STCP
 |
Single
Throttle Cable
(for metal throttle)
PART # STC
LIST $35.00
|
Single
Throttle Cable
(for
plastic throttle)
PART # STCP
LIST $35.00
|
|
|
WISECO
Forged Pistons

Due
to past experience with broken pistons on modified ATVs, we require
WISECO pistons be used on all modified engines, and recommend them
for all others. Includes:
Piston, rings, pin, and clips.
REQUIRES:
Cylinder honing or boring. |
|
|
| |
|
| |
|
|
New
Version TEAM Clutch
TAS-03X
Includes HPD's
exclusive
Externally Adjustable Belt Freeplay
TAS03X Includes spring and helix
|
These
adjustable
kits
are
industry
leaders
for
providing
smooth
and
precise
upshift
and
backshift,
which
improves
your
efficiency,
performance
and
durability.
Tunable
with
custom
cam
angles
and
springs.
Twin
roller
operating
in
enclosed
helix
track.
For
Scrambler 400 94-02 EBS and Trail Blazer 400 EBS 2003
MUST STATE MODEL OF MACHINE AND
MODIFICATIONS IN "COMMENTS" SECTION OF ORDER
FORM. |
PART
#TAS03X
LIST 369.00
|
|
Secondary
Clutch Assembly ONLY
Same
secondary clutch as above,
but just a secondary clutch assembly
.jpg) |
PART
#TAZ03X
LIST 339.95
|
|
|
Team
Secondary Clutch Springs
Secondary
springs control shift rate.
Fine-tune your secondary clutch with TEAM springs manufactured to the
most exacting specifications.
Spring
Height at 2.4" - 1.4" |
Black/Yellow
85-110 Wt
PART
# 210038
LIST $24.95
|
Black/Red
120-185 Wt
PART
# 210090
LIST $24.95
|
Black/White
105-165 Wt
PART
# 210110
LIST $24.95
|
Black/Orange
125-200 Wt
PART
# 210099
LIST $24.95
|
|
|
TAS03X
Team Secondary Clutch Springs
Chart 1
Load Heights at 2.05" + 1.05"
Secondary
springs control shift rate.
Fine-tune your secondary clutch with TEAM springs manufactured to the
most exacting specifications.
|
Red
105-165 Wt
PART
# 210314-004
LIST $24.95
|
Bright
Green/Purple
105-185 Wt
PART
#210314-001
LIST $24.95
|
Yellow
80-130 Wt
PART
# 210314-003
LIST $24.95
|
Bright
Green/ Silver
125-190 Wt
PART
# 210314-002
LIST $24.95
|
|
|
TAS03X
Team Secondary Clutch Springs
Chart 2
Load Height at 2.0" - 1.0"
Secondary
springs control shift rate.
Fine-tune your secondary clutch with TEAM springs manufactured to the
most exacting specifications.
|
Orange
105-165 Wt
PART
# 210169
LIST $24.95
|
Green
/ White
105-185 Wt
PART
# 210215
LIST $24.95
|
White
80-130 Wt PART
# 210140
LIST $24.95
|
|
|
Team
Helix's
EBS and NON-EBS Helix's
|
|
The
ATV helix produces a quick up-shift and improved back-shift for excellent
throttle response.
The helix offers fine-tuning for changing conditions.
These unique components are available in a variety of multi-angles for
almost any application.
(EBS) = Engine Braking System |
|
|
| |
| |
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
Kevlar
Performance Belt
High
strength Kevlar construction and soft compound for less belt slip.
Excellent
replacement belt for your 08 RZR, 400 & 500 Scrambler or 500 Ranger.

|
PART
#HPD113
LIST $63.00
|
|
|
ON
SALE! Limited Quantities Available
Kevlar
Cord ATV Belt
Kevlar construction for strength and a soft compound
for less belt slip. Original Sportsman
EBS belt. Fits all standard ATV and early EBS
Sportsmans.

|
PART
#HPD091
LIST $60.00
$45.00
|
|
400
Base Gasket
Special Aluminum core with
a nitril synthetic rubber coating on both sides.
Almost blow-out proof.

PART
# 416PMBG
LIST $27.00
|
400
Head Gasket

PART
# 3084731
LIST
$31.48
|
| |
|
|
|
Super
Duty Clutch Buttons
This
kit makes your secondary buttons almost indestructible. Used
on our super sport racers for 10 years without breakage. |
PART
# SSBK
LIST $65.00
|
|
|
|
Replacement
Buttons for
Super Duty Clutch Buttons |
PART
# SSB
LIST $3.00 each
|
|
|
 |
Starter
Eliminator Kits
Kits
includes: Cover plate, gasket, and 3 nylock nuts. |
400
Polaris Eliminator Kit
PART # SEK
LIST $27.00
|
|
|
 |
Oil
Injection
Eliminator Kits
Eliminates
the oil injection
Single throttle
cable recommended |
400
Oil Injection Eliminator
PART # OIEK
LIST $27.00
|
|
Performance
Reed Valves
 |
HPD 400 & 416
V-FORCE Delta II
The
dyno proves gains throughout the power band. Improved throttle
response and acceleration. These performance reed valves use
exclusive custom reed material and stops. |
Polaris
400
|
| |
|
|
Reed
Spacer
Kit 400
|
THIS
ITEM IS ON SALE!
$25.00!!
For
Polaris 400 only. Increases horsepower and extends reed life.
A must for big bores, to correct primary compression.
|
|
|
|
Steering
Post Bearing
 |
If
your steering is loose, this is the product for you. This lower
steering post bearing is made of 6061T6 aluminum, has a 660 high
impact cast bronze bearing with grease grooves, and is held in
place with 1/4 inch allen bolts with nylock nuts. Fits all models
with 7/8" steering post. |
PART
# SPB
LIST $35.00
|
|
|
Adjustable
Steering Damper

Hydraulic steering damper for Polaris ATV's helps save your arms and
thumbs on rough trails or tracks. The damper unit has a 7-position
clicker adjustment. Fits all concentric drive models and Sportsman
500s. Available for 7/8" and 1" steering posts. |
For
1" steering post
Part # ASD01
LIST $139.00
|
For
7/8" steering post
Part # ASD
LIST $139.00
|
|
|
Handle
Bar Clamps
FOR STOCK POSTS

Machined
from 6061T6 aluminum. 2 piece clamps rigidly mount super cross
or super bike bars. HPD logo engraved.
|
ON
SALE!
HPD
Super Bike:
Bar
Size:
7/8"
PART
# HBCSBS
LIST
$85.00
$45.00
|
ON
SALE!
HPD
Super Cross:
Bar
Size:
1
1/8"
PART
# HBCSCS
LIST
$85.00
$45.00
|
|
|
Clutch
Pullers
 |
PRIMARY
CLUTCH PULLER:
This
tool is used to remove the motor clutch from your Polaris
ATV.
PART
# 20-66
LIST
$35.00
|
|
|
.jpg) |
Heavy Duty
Engine Mounts
80
Durometer
For Performance or Race Engines
Heavy
Duty mounts should be used on performance machines to keep the
engine in correct alignment, making the clutches more efficient
and a faster ATV.
Mounts are sold each (not in sets) |
NOTE: Mounts
are sold each (not in sets). 250s and 400s require 3 mounts. (Not
for use on 500s.) |
|
| |
|
ATVCT
Chain Tensioner
An
absolute must if you are going to jump your Polaris ATV. Narrow,
strong, with improved spring. It also has a grease zirc for re-lubrication.
Includes:
drill, tap, mounting hardware and installation guide.
|
ATVCT

Disc brake
on transmission.
Mounts to frame. |
Non-Concentric
Chain Tensioner
PART # ATVCT
LIST $75.00
|
|
ATVCTC
Chain Tensioner
An
absolute must if you are going to jump your Polaris ATV. Narrow,
strong, with improved spring. It also has a grease zirc for re-lubrication.
Includes:
drill, tap, mounting hardware and installation guide.
|
ATVCTC

Disc brake
on rear axle.
Mounts to swingarm.
|
Concentric
Chain Tensioner
PART # ATVCTC
LIST $75.00
|
|
Tether
Switch
 |
Add
safety to your ATV with a tether switch. anyone racing or riding
aggressively should have one. Also a good safety idea for the
beginner. |
PART
# TS
LIST $30.00
|
|
|
|
| |