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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 |
$119.00 |
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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 Aftermarket core depending on application. Cams 274, 280, 285, 294, and 320 series
may require
grinding of block to install. All GX120 Racing Cams are special
order. Allow 1 week to ship. |
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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 |
$139.00
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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 |
$119.00
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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 |
$119.00
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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 |
$119.00
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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 |
$119.00
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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 |
$119.00
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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 |
$119.00
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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 |
$119.00
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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 274-0607, 800 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. |
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NRC-F200 -0607 |
$119.00
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Camshaft GX120 274-1007, 9500+ 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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$119.00
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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 |
SPECIAL
$149.00 |
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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 |
SPECIAL
$179.00 |
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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, 24 mm, Stock Length, Lightweight, High Flow,
Hardend tips (Lash caps not required) - can use existing seat, but must be
cut |
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VAL24-120 |
$16.00 |
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Valve, Exhaust, Stainless, 16mm ( Stock Size), 16mm, Lightweight, High Flow, Hardend
tips (Lash caps not required) |
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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. |
