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GX120 RACE PARTS
(Also see our GX200 Race Parts Page -
Most parts will also fit GX120s),
This page has only those parts exclusive to
GX120s |
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AIR FILTERS AND KITS |
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SEE GX200 RACE PARTS
-
CLICK HERE |
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BOLT, STUDS, & HARDWARE |
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Bolt Kit, High Strength Grade 10.9, Includes new high strength bolts and
washers for head and side cover. Use only if studs not
allowed. |
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120BOLTKIT |
$12.00 |
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GX120 Stud Kit, Includes Head Studs, Side Cover Studs,
Washers & Nuts, Solid case Dowl Pins, Mandatory for
all HP applications (Note. This kit use studs only, no bolts) |
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120HDSTUDKT |
$40.00 |
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Stud Kit for Valve Cover |
VCSTUDKT |
$10.00 |
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SEE GX200 RACE PARTS FOR ADDITIONAL HARDWARE -
CLICK HERE |
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BEARINGS AND CRANKS |
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Bearing, Crankshaft (Block & Side Cover), Ceramic Ball & Cage
(Special Order)* |
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7866 |
$249.00 |
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Bearing, Crankshaft (Block & Side Cover), Ceramic Ball, Chrome Steel Cage,
ABEC 7 (Special Order)* |
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8248 |
$129.00 |
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Bearing, Crankshaft (Block & Side Cover), Ceramic Ball, SS Cage
(Special Order)* |
7549 |
$59.00 |
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Bearing, Crankshaft (Block & Side Cover), Self Aligning (Special Order)* |
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120SABEAR |
$30.00 |
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Bearing, Case, GX120, Special Race - loose Free Spinning, These are OEM
bearings that have had the Balls and race ground for an extra .001" to .002"
clearance. This helps to free up the crank, eliminate any bind, and spin
free. |
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120FREEBEARING |
$40.00 |
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Camshaft GX120S
Our
cams are specially developed for Honda GX engines using flow bench and dyno
testing. They are not copies of Briggs (or other) like many of the other cams on
the market. All cams can be custom ground for ICL and LS to tailor performance
to your specification.
Cams use either Genuine Honda
Cores or a Clone core depending on application. Cams 274, 280, 285, 294, and 320 series
may require
grinding of block to install. |
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228 SERIES (Cheater Grind).
Cam ground for for classes with lift only
rules. Factory lift of .228/.230 with approx 10 degrees more duration. Factory
Center Lines. Near
Stock idle. Cam will pass visual inspection but may not pass technical (i.e.
profile measurement). 18lb Springs Required.
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Camshaft GX120, 228-120 Cam is ground on
genuine Honda 120 core ( |
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NRC-228-120 |
$149.00
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230 SERIES
Welded and ground for classes with lift only rules. Approx .230 lift
with 30 degree more duration than stock. Significant power increase over
stock while maintaining factory lift. Cam may have noticeable idle . Cam will not pass
visual inspection. 18lb Springs Required, 26 recommended. Cam is BOLT IN and
does not require block modifications yet keeps stock base circle to maintain
correct valve train geometry. |
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Camshaft GX120, 230-0207 SPECIAL HIGH TORQUE GRIND FOR SMALL TRACKS,
5500 rpm, 18 lb Springs Required, 26 recommended. 10 to 1 Compression or
higher* |
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NRC-230-0207-120 |
$149.00
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Camshaft GX120, 230-0607 All around grind for medium
to large tracks. 6500 rpm, 26 lb Springs required recommended. 10 to 1
Compression or higher* |
NRC-230-0607-120 |
$149.00
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Camshaft GX120, 230-1007 High RPM Grind for Large
tracks. 7500+ rpm, 26 lb Springs required 11 to 1 Compression or
higher* |
NRC-230-1007-120 |
$149.00
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Camshaft GX120, 230-0211 SPECIAL HIGH TORQUE GRIND FOR
SMALL TRACKS, 5500 rpm, 18 lb Springs Required, 26 recommended.. 9.5 to 1
Compression or lower* |
NRC-230-0211-120 |
$149.00
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Camshaft GX120, 230-0611 All around grind for medium
to large tracks. 26 lb, 6000+ RPM S18 lb Springs Required, 26 recommended. 10 to 1
Compression or lower* |
NRC-230-0611-120 |
$149.00
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252 SERIES
Approx .252 lift and 230 degrees duration (at .050). Welded and ground
cam provides significant power improvements over stock cam. Works best with
mild motors using bored OEM or aftermarket carbs. Cam is BOLT IN and does
not require block modifications yet keeps stock base circle to maintain
correct valve train geometry. 26lb springs should be used. Great with 1.3
rockers. Our number one
seller. |
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Camshaft GX120, 252-0207 SPECIAL HIGH TORQUE GRIND FOR SMALL TRACKS,
6000 rpm, 18 lb Springs Required, 26 recommended. 10 to 1 Compression or
higher This is one of the best choices for low end power, esp on small
dirt tracks with heavy drivers. |
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NRC-252-0207-120 |
$149.00
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Camshaft GX120, 252-0607 All around grind for medium
to large tracks. 6500 rpm, 26 lb Springs required recommended. 10 to 1
Compression or higher* |
NRC-252-0607-120 |
$149.00
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Camshaft GX120, 252-1007 High RPM Grind for Large
tracks. 7500+ rpm, 26 lb Springs required 11 to 1 Compression or
higher* |
NRC-252-1007-120 |
$149.00
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Camshaft GX120, 252-0211 SPECIAL HIGH TORQUE GRIND FOR
SMALL TRACKS, 5500 rpm, 26 lb Springs required recommended. 9.5 to 1
Compression or lower* |
NRC-252-0211-120 |
$149.00
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Camshaft GX120, 252-0611 All around grind for medium
to large tracks. 26 lb, 6000+ RPM Springs required recommended. 10 to 1
Compression or lower* |
NRC-252-0611-120 |
$149.00
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NEW Camshaft GX120, 252-MARINE Special
grind for Marine and Winch Boarding applications. Extreme torque.
Designed for 5000 RPM operation. 18 lb springs will work but 26 lb recommended. 11 to 1
Compression or lower* |
NRC-252-9911-120-120 |
$149.00
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280 SERIES
The original NR Camshaft GX120. Approx .280 lift and 220 duration (at
.050). This is a nice cam that works well on both stock and modified motors.
This cam produces lots of low end torque. One of
the best all around cams we offer. Block must be clearanced to install.
Stock base Circle. 26 lb springs required. Bored or Aftermarket carb needed. |
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Camshaft GX120 280-0207
Serious Torque for Small Tracks 6000 max RPM. 10.5 to 1 compression
or more, 26 lb Springs Required |
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NRC-280-0207
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$149.00
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Camshaft GX120 280-0211 THE ULTIMATE
TORQUE CAM, 5500 max RPM. 10.5 to 1 compression
or less, 26 lb Springs Required |
NRC-280-0211
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$149.00
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Camshaft GX120, 280-0607, Great all around cam for 200s. 6500 RPM. 10.5 to
1 compression or more, 26 lb Springs Required |
NRC-280-0607
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$149.00
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Camshaft GX120, 280-0611, Approx .280
lift, 222 Duration, Great all around cam for 200s. 6500 RPM. Wider power
range than 280-0607 with slightly less peak power. Great for Road Racing. Use
with stock valve sizes.
10.5 to 1 compression or less. 26 lb Springs
Required. |
NRC-280-0611 |
$149.00
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285 SERIES Serious Camshaft GX120 for serious motors. Lobe designed esp. for Honda GX
series Motors (and clones). Approx .285 lift and 250 duration
(at .050). Cam allows use of stock valves with 1.2 rocker arms when using
our springs. This cam likes big carbs and big ports. This is the cam we use in our top
motors. Best with 24 mm Mikuni, big valves, and high compression. Block must
be clearanced to install. Stock base Circle |
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Camshaft GX120, 285-0607,
7000 RPM. 11.0 to 1 compression or more.
26 lb Springs Required, Recommended for most serious
GX200s needing good mid range torque. |
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NRC-285-0607 |
$149.00
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Camshaft GX120, 285-1007, 7500+ RPM. 11.0 to 1 compression or more.
26 lb spring required,
30 lb suggested, Recommended for most serious
GX200s needing top end power.
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NRC-285-1007 |
$149.00
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274 SERIES
Radical cam grind . Approx .274 lift and 260 duration. Square lobe design to maximize
valve opening time. While meant to use with larger carbs, it actually works
very good with smaller carbs by holding open the valve as long as possible
with reduced lift to maximize velocity. Block must be clearanced to install.
Stock base Circle. |
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Camshaft GX120 274-0207,
Super High Torque, Use for small tracks or very heavy driver/karts. Designed for 6500+ RPM, 11 to 1 or
higher
compression ratio & 26 lb Springs required. DESIGNED TO GET YOU OFF THE
CORNERS |
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NRC-F200-0207
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$149.00
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Camshaft GX120 274-0607, 7500 RPM, 12 to 1 or higher compression ratio
required, Small to medium tracks and all road courses, 26 lb Springs
Required. Warning - May cause traction problems. |
NRC-F200 -0607 |
$149.00
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Camshaft GX120 274-1007, 8500+ RPM, 12 to 1 or
higher compression ratio required, Recommended for serious competition.
Use for large ovals or where traction is a problem, 26 lb Springs Required |
NRC-F200-1007
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$149.00
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Camshaft GX120 274-1407, 9500+ RPM, 12 to 1 or
higher compression ratio required, Recommended for serious competition.
This cam is designed for motors running in the 9,000 to 10,000+ RPM range.
Dual Springs Required |
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NRC-F200-1407
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$149.00
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NEW Camshaft GX120 274-MARINE,
Special grind for Marine and Winch Boarding
applications. Extreme torque. Designed for 6500+ RPM, 11 to 1 or Lower
compression ratio required, 26 lb Springs required |
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NRC-F200-0211 |
$149.00
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320
SERIES
The biggest wildest cam for GX200s. Approx .320
lift and 260 at .050 duration. Requires dual springs and special attention
to the valve train. Block and rod must be clearanced to install. Stock base
Circle |
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Camshaft GX120 320-0807
7500+ RPM, Hottest cam available for
GX160/200s. Big Valve and Big Carbs required. Dual Springs Required,
heads will need spring pocket cut. 12 to 1 or higher
compression ration required, * |
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NRC-320-0807
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$149.00
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NEW Camshaft GX120 320-1207
9000+ RPM, The biggest wildest cam of all. Big Valves and Big Carbs required. Dual Springs
Required, 13 to 1 or higher compression ration required, |
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NRC-320-1207
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$149.00
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CARBURETORS, CARB KITS, AND FUEL PARTS |
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Carburetor, GX120 Bored Out and circuitry reworked* (~15.5 mm). Adds over 1
hp on GX160s. Adjustable jet recommended. (Bored GX200 carbs are preferred
when possible) |
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NR120OSCARB |
$135.00 |
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SEE GX200 RACE PARTS FOR ADDITIONAL CARBS -
CLICK HERE |
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FLYWHEELS & FANS |
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Flywheel, Billet Aluminum and Adjustable Timing* |
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RMALFY |
$250.00 |
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Flywheel, charging (includes flywheel with magnets and lighting coil) |
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TO120LCFLY |
$99.00 |
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GASKETS (See Stock Parts for
Additional Gaskets) |
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Gasket, Head .041 ~ .042 (QMA Legal |
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120HG .041 |
$18.00 |
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Gasket, Head .038 ~ .040 (not QMA Legal |
120HG .038 |
$18.00 |
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Gasket, Head GX120 1.0 mm (UK Spec) |
120HG 1.0 |
$18.00 |
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Gasket, Head .045 ~ .046 |
120039 |
$8.00 |
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HEADS, CYLINDER HONDA - All
heads use Genuine Honda cores
(after
ordering, send an e-mail to
nrracing@comcast.net with amount to be
milled and any special request) |
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Race Head, Level 1 Cylinder head, Ported and Milled (Choice of
.050 or .080), Stock valves (3 angle), 18 or 26 LB Springs, OEM Retainers (REV
Kit), New |
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NRCH120L1 |
$229.00 |
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Race Head, Level 4 Cylinder head, Oversize SS valves, 26 lb Springs,
Ported and Milled to choice of compression ratio, New |
NRCH120L4 |
$249.00 |
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IGNITION AND TIMING |
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SEE GX200 RACE PARTS FOR TIMING AND IGNITION
COMPONENTS -
CLICK HERE |
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PISTON AND RINGS |
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PUSHRODS |
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GX120
Pushrods, Chrome Moly, Best Pushrods available, Pair |
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CMPR120 |
$30.00 |
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GX120
Pushrods, Chrome Moly, .100" Shorter for Roller Rockers, Also
recommended for Billet rockers and/or when heads are milled more than .060", Pair |
CMPR120-100 |
$30.00 |
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SEE GX200 RACE PARTS FOR ADDITIONAL
PUSHRODS/KITS -
CLICK HERE |
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ROCKER ARMS |
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Rocker Arm, Low Friction with Pivot. These are OEM Rocker Arms and Pivots
that have been lapped and treated to reduce friction. Undetectable, each |
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NRRCKPVT |
$20.00 |
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SEE GX200 RACE PARTS FOR ROCKER ARMS -
CLICK HERE |
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RODS, CONNECTING |
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Rod Connecting, GX120 OEM Honda Race Prepped (Not QMA
Legal) |
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120NRRODPR |
$60.00 |
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Rod Connecting, Billet GX120, 2.874" Long |
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120ARCROD |
$79.00 |
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VALVE SPRINGS AND COMPONENTS
(including, Retainer Lash Caps and Shims)
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SEE GX200 RACE PARTS FOR VALVE
SPRINGS AND COMPONENTS -
CLICK HERE |
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VALVES AND COMPONENTS
See Valve Packages
for Additional Selections |
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Valve, Intake, Stainless, Stock Size & Length, Lightweight, High Flow, Hardend tips (Lash caps not required) |
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VAL120ISS |
$40.00 |
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Valve, Intake, Stainless, 24 mm, Stock Length, Lightweight, High Flow,
Hardend tips (Lash caps not required) - can use existing seat, but must be
cut |
VAL24-120 |
$16.00 |
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Valve, Exhaust, Stainless, Stock Size & Length, 24 mm, Lightweight, High Flow, Hardend
tips (Lash caps not required) |
VAL120ESS |
$40.00 |
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SEE GX200 RACE PARTS FOR OTHER VALVES -
CLICK HERE |
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Part/Model numbers are for reference only and are subject
to change. Actual part may have a different number, however it will be
latest available part and will match description. If you require an
exact part number (i.e. for class or rule requirements), please e-mail. |
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Parts Descriptions followed by an * are special order and may
take 1 to 2 weeks to get. |
