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55mm +.040 Stroker Crank for BSP "Clones" & GX200 style engines. 208cc. with stock bore or 212cc. with 2.756 Bore.
225cc with 2.835 bore (72mm) Uses the Honda/Clone connecting rods and flywheels. Note: Can be used as a stock replacement in Predators if flywheel and rod is changed to GX200 style. |
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Special Legal Racing Crank for BSP. Stroke is 2.130 - 2.133 to comply with BSP/AMRA rules (2.133 max) Note: Some stock cranks already meet these requirements.
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This crankshaft is .080" more stroke then a 196cc clone and .040" more stroke then a 212cc and a 225cc. More leverage on the rod and piston equals more power/torque! Because of the longer stroke of this crank, clearance for the connecting rod and camshaft may be required. PAY ATTENTION to clearances as you are installing this crank.
*56mm stroke (2.205")
*Rod journal: 1.180" (accepts clone/honda rods)
*Same flywheel taper as clone/honda/tillotson
*6619-ARC billet
*SK200-slipstream
*3/4" output shaft
*For reference
*196cc clones: 2.125" stroke
*212cc/225cc engines: 2.165" stroke
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OEM Crankshaft for 420 Predators and other 420/440cc engines with 66mm Stroke, 1" Shaft, Also works in GX390s but has 2mm (0.080") stroke producing 402cc. New Take Off.
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The EC 3rd Bearing Support with Heavy Duty Blower Housing is made to increase block rigidity and stabilize the flywheel and crankshaft. The 3rd bearing support prevents the crankshaft from flexing to help prevent distortion from damaging the crank. We intergraded the 3rd bearing support into the heavy-duty blower housing on the outside of the flywheel. the support on the outermost part of the flywheel is far more effective at reducing crankshaft flex caused by the block and the flywheel than one placed underneath the flywheel.
Kit Components:
- Heavy Duty Blower Housing ( Do not use 3rd bearing supports on other blower housings)
- Billet Aluminum Bearing Support
- Starter Shaft/Nut
- Ball Bearing
- Exclusive Aluminum Blower Housing Cover
- 3rd Bearing Support Mounting Hardware
Fits:
- Honda GX200
- Clone 196
- Predator 212
- Tillotson 196/212/225
- Ducar 196/212
- Wildcat 223
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.060 Stroker Crank OEM Crankshaft welded and ground producing .060 more stroke, When used with stock length rod, will put piston approx at zero deck height. Some applications may need to customize piston or use thick head gasket (.020" clearance between piston and head required)
Crank requires balancing (approx. 60 grams total , 30 per counterweight)
Approx. 218cc with stock bore
For experienced engine builders! - Some clearancing may be required!
NOTE: Requires Flywheel, Billet, 6626 - 212 HEMI Predator (New Style), Kohler 212 or Flywheel, Billet, Super Light , 212 Predator (Hemi New Style) flywheels.
Uses Honda Rod Journal (use 6270 ARC Rod, Honda GX200 STD OHV 3.303 or 6234 ARC Billet Rod, GX160/200 &Clone 3.595" X .490" rod)
Allow up to 1 week to ship, esp if balancing is required
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.060 Stroker Crank OEM Crankshaft welded and ground producing .060 more stroke, When used with stock length rod, will put piston approx at zero deck height. Some applications may need to cust piston or use thick head gasket (.020" clearance between piston and head required)
Crank requires balancing (approx. 60 grams total , 30 per counterweight)
Approx. 218cc with stock bore
For experienced engine builders - Some clearancing may be required
Requires Flywheel, Billet, 6625 - 212 Predator (old Style) or Flywheel, Billet, Super Light - 212 Predator (Old Style) flywheels Uses Honda Rod Journal (use 6270 ARC Rod, Honda GX200 STD OHV 3.303 or 6234 ARC Billet Rod, GX160/200 &Clone 3.595" X .490" rod
Allow up to 1 week to ship, esp if balancing is required |
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414cc Stroker Crank, OEM Honda Crankshaft welded and ground producing +.160 more stroke for a total of 2.68" (68mm), Puts piston at -.010 to TDC on Honda Blocks (Chinese OHVs will Vary),
Use with stock length rod and OEM Piston (piston must be cut .040)
Crank requires balancing
- 414cc with GX390 Piston (88mm)
- 433cc with 420 Predator Piston (90mm)
- 452cc with 92mm bore
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This crankshaft is machined from a solid bar of 4140 steel and will give you .175" more stroke than the stock Honda/Clone 196cc crankshaft (.136" longer in a Predator 212) with far superior strength. This is the strongest material used for a small engine crank. These cranks use a 1" Journal and require connecting rod #6265 (drop-in) or #6765 and a Wiseco Piston. - Crank and required connecting rods are clearanced for most cam applications but some additional machining may be required with high lift/high duration cams.
- Crank is designed to be used with a Honda GX200/Clone 196cc flywheel taper. (Predator flywheels WILL NOT work)
- You must use flywheel key number included with the crank, or our offset key 8-KEY-STROKER. (Standard GX or Clone keys will not work)
- If using #6765 rod, Top of piston will need to be machined approx. .100”. Use only 2 ring pistons! NR Racing offers 2.756 and 2.815 Pistons already machined. (WARNING: Do Not machine the top of the 3 ring pistons).
- If #6265 rod, either 3 ring or 2 ring pistons can be used.
- Outer 3rd / 4th bearing supports highly recommended
- Pistons larger than 2.815 will require balancing
NO WARRENTY OR RETURNS ON BILLET CRANKSHAFTS
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Billet Steel GX200 Stroker Crank, +.175 Stroker, 1" Pin Requires special ARC Rod (3.625).
Note: Requires adjustable flywheel or special offset timing key
Allows 214 to 266 cc depending on Piston
Optional Timing 8 degree Key Available Key, Timing, Offset, 8 Degrees, Stroker Cranks
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GX390 +.200 Stroker Crankshaft. 2.720"(69mm) stroke with standard crank pin diameter. Machined in house from hardened 4340 Chromoly to the exact standard you have come to expect from ARC. Dual plane balanced to eliminate the need for the OEM counter balance system. Design for use with the ARC 6272 rod and the 27-3464 (88mm) piston. 1" PTO shaft. Some internal engine clearancing may be required. If using piston bigger than 90mm, re-balancing may be required.
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