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ORDER ONLINE
Powroll
13840 Commercial Lp
Crooked River, OR
97760
Mail:
PO Box 920
Redmond OR 97756
Phone
541-923-1290
Fax
541-923-5637
Email

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STOCK SPECIFICATIONS: 100mm BORE X 84mm STROKE 9.2:1
COMPRESSION
FYI:
2001 model Tranny Problems? Click
here
for the fix.
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PERFORMANCE PACKAGES ARE TESTED TO ENSURE OPTIMUM POWER. |
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770cc PREMIUM KIT
105mm BORE, +5mm STROKE, 12:1 COMPRESSION
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BIG NOTE: This kit requires
EXTENSIVE machining and may significantly increase necessary
maintenance.
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The ultimate in horsepower!
You’ve seen it in the magazines, now get it for yourself! Absolutely the
most power possible for your Raptor!
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KIT INCLUDES:
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BORE & STROKE COMBO #00326-16088
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CAMSHAFT #12752
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HARDWELD
CAM GRIND #12758
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VALVE SPRINGS #24039
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STAINLESS STEEL VALVE SET - 3 +1MM O/S
INTAKE #24524A, 2 STOCK SIZE EXHAUST #24525
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POWROLL FCR CARB KIT #20533 |
REQUIRES:
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Cylinder re-sleeving
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Case machining
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Send in your crank for modification. Download our
Stroker Booklet for
details.
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Send in your good cam core for hardweld.
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Must run
race gas 112 octane or greater
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Gearing. Install 1 tooth
larger front sprocket and 3 teeth smaller rear sprocket
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Frequent rebuilds will most
likely be required with this kit |
RECOMMENDATIONS:
Kit does not include a new rod - we recommend a
Falicon rod for
better reliability (#CR-1Y-A66) you can purchase this from Falicon, and
send in with your crank.
Powroll recommends a tachometer or shift light set at 6800 rpm. The best
power is
produced below this point, and overrev will only cause premature engine
failure.
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So, why do we recommend a
Shift Light or Tach with the 770cc kit?
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Both of
these cranks came from engines run at redline for too long! |
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#KRAP660PREM RAPTOR PREMIUM KIT -- $2,614.00
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PISTON KIT - HIGH COMPRESSION
100mm Piston, 11:1 Compression.
This stock size kit installs
in your stock cylinder with no boring required.
INCLUDES: Piston, pin, rings,
circlips, headgasket, basegasket.
REQUIRES: Check clearances
before installation. Must run race fuel, 108 octane or greater.
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00323 Y PISTON KIT YAM 660 100MM -- $290.00
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.020” Oversize for our High Compression
Kit
100.5mm,
11:1 Compression
INCLUDES:
Piston, pin, rings, circlips, headgasket, basegasket.
REQUIRES:
Boring. Must run race fuel, 108 octane or greater.
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00323B Y PISTON KIT YAM 660 100.5MM -- $290.00
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770cc BORE & STROKE COMBINATION
105mm Bore, +5mm Stroke, 12:1 Compression
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BIG NOTE: This kit requires
EXTENSIVE machining and may significantly increase necessary
maintenance.
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This is the basis of our
Premium kit shown above. If you already have the carbs, cam, etc, you
can order the 770cc kit separately here.
Bore Kit and Stroke Work are
not sold separately and won’t work separately.
INCLUDES
● 105mm Piston Kit: Piston,
pin, rings, circlips, headgasket, basegasket, sleeve.
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5.0mm Stroke: Work done on
your crank.
REQUIRES
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Cylinder re-sleeving, bore,
case machining and windage tray modification. Installation instructions
are included.
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39mm FCR Carb Kit, Race Cam,
shown below. These are minimums to make this kit run. We
strongly recommend purchasing this as the Premium Kit!
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Race Gas 112 Octane or
greater.
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Kit does not
include a new rod - we recommend a
Falicon rod for
better reliability (#CR-1Y-A66) you can purchase this from Falicon, and
send in with your crank.
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Send you crank for
modification.
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00326-16088 Y BORE-STROKE 770CC -- $795.00
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Powroll 730cc Bore & Stroke Combination
102mm Bore, + 5mm Stroke, 11:1
Compression
Huge power increase of more than 50% over stock.
Bore Kit and Stroke Work are not sold separately and
won’t work separately.
INCLUDES
102mm Piston Kit: Piston, pin, rings, circlips,
headgasket, basegasket.
5.0mm Stroke: Work done on your crank.
REQUIRES
Cylinder boring.
Race Gas 105 Octane or greater.
Kit does not include a new rod - you can purchase a
Falicon rod for increased reliability (#CR-1Y-A66) you can purchase this
from Falicon, and send in with your crank.
Send in your crank for modification. Download our
Stroker Booklet for
details.
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00353-16088LR YAM RAP 660 730CC KIT -- $630.00
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CAMSHAFT - MIDRANGE GRIND
HARDWELD
CAM, DONE ON YOUR CORE
Lift .340”IN, .255” EX.
Duration 242° IN, 245° EX @.050”
Midrange with a high
compression piston. Torque with our 770cc kit. Uses stock springs and
rockers.
REQUIRES:
Send in your good cam core
for work.
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12752 Y CAM RAPTOR MID - ON YOUR CORE -- $180.00
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CAMSHAFT - RACE GRIND FOR 770 ENGINES
HARDWELD
CAM, DONE ON YOUR CORE
Designed specifically for use
with our 770cc kits Great overall power.
REQUIRES: Valve Springs
#24039. Hardfaced Rockers.
Send in your good cam core
for work.
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12758 Y CAM RAPTOR RACE - ON YOUR CORE -- $190.00
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CAMSHAFT - NOS/ALCOHOL GRIND FOR 770 ENGINES
HARDWELD
CAM, DONE ON YOUR CORE
Hardweld cam on stock core.
Best power for drag racing.
REQUIRES:
Valve Springs #24039. Hardfaced Rockers.
Send in your good cam core
for work.
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12759 Y CAM DRAG - ON YOUR CORE -- $200.00
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VALVE SPRINGS
Heavy duty spring kit with
titanium retainers. Recommended only with our 770cc kit and oversize
valves.
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24039 Y VALVE SPRINGS RAPTOR -- $175.00
Special Order -
allow 4 weeks
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STAINLESS STEEL VALVES
Increased longevity and
better airflow characteristics make these a much better deal than OEM
replacements.
Valves are sold each.
Purchase 3 Intake valves and 2 Exhaust valves for a complete set of 5.
Special Order, allow 4 weeks.
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INTAKE - 1mm
Oversize #24524A Y RAPTOR SS VALVE -- $55.00 ea.
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EXHAUST - Standard
Size #24525 Y RAPTOR SS VALVE -- $55.00 ea.
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39mm
FCR CARB KIT
The absolute best carburetion
available for your 770cc or larger Raptor! These twin 39mm Keihin’s have
instant throttle response, no flat spots, no stumble or hesitation! If
you’re building the ultimate Raptor, you need these carbs!
WHY PURCHASE YOUR FCR CARBS
FROM POWROLL?
The complex design of the FCR
makes setup very important. Every FCR carburetor that Powroll sells goes
through a 30-point inspection. Jetting is set for the application, the
pump stroke is calibrated; almost an hour of work goes into each of our
FCR carb kits. You also receive our FCR carb tuning booklet. All this
adds up to a carburetor that is truly a ‘bolt on and ride’ setup!
INCLUDES:
Two Keihin 39mm FCR Carburetors. Manifold, Airboot adaptors and
o-rings (to work with stock airbox). Cable adaptor to work with stock
throttle assembly. Pre-jetted for our 770cc kit, also includes
additional jets for different setups or air conditions. Complete
installation and tuning instruction booklet.
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20533 Y CARB KIT FCR 39MMX2 RAPTOR -- $999.00
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