Ease of Fitment Guide
Included in the RCM Stroker kit are the following components:
RCM / Arrow Crankshaft
• 79mm Stroke.
• Billet Machined.
RCM / Arrow Conrod Set
• Big End Diameter: 55.008.
• G/Pin Diameter: 23.000.
• Between Centres: 130.450.
• Big End Width: 21.400.
• Small End Width: 21.400.
• Bolt Size: 3/8 UNF.
• Quantity in Set: 4.
RCM / Omega Forged Pistons
• Forged from 2618A aerospace alloy.
• CNC machined at a constant 20.5°C.
• Weighed and batched to within 0.5 grams.
• Piston sets are supplied with piston rings, gudgeon pins and circlips.
ACL Race Bearing Set
• Rear Thrust Configuaration.
• X1 Big End Bearing Set.
• X1 Main Bearing Set.
• High Performance Trimetal Construction.
Engine Case Seal Kit & Engine Sealer
• X3 Subaru Small Black O-rings for engine block case halves.
• X1 Subaru Orange Block Engine Case O-ring.
• X1 Subaru Front Crank Oil Seal.
• X1 Subaru Rear Crank Oil Seal.
• X6 Dowety Block Bolt Engine Seals.
• X3 Piston Pin Hole Aluminium Seal Washers.
• X1 250gram Tube "Threebond" Grey Engine Sealer.
• Increased power.
• Increased torque.
• Improved Reliability.
• Provides a stable and strong platform for further power increases.
• All EJ20 engine blocks including open deck, semi closed deck and closed deck variants.
• Available in three piston sizes (STD, 0.25 and 0.50 oversize), please ensure you select the correct size when ordering.
• Rear Thrust Conversion will be required for early closed deck blocks.
• Cylinder re-bore and hone will be required for piston fitment.
Please contact us for further information if you are unsure on any of the above.