NOTE: Mahle Motorsports lists this kit as "964 NA 3.6L to 3.8L" but due to the HIGHER compression ratio of their kits offered we call it the 964 993 RSR Kit. Mahle Motorsports 3.6L To 3.8L RSR Conversion Piston And Cylinder Set For1989-1998 Porsche 964 Carrera and 993 Carrera Engines 12.6:1 Compression @ 1mm Deck Height 76.4mm Stroke and 127mm Rod 102mm Bore - 109mm Sleeve - Requires Machine-In Fitment to Engine CaseMahle Motorsports - Sold As A Set (6pcs) - 1 Set Per Engine Checkout projects featuring the productShow off your engine conversion with our badge This Set Includes: (Qty 6x) Pistons # PP102-011 (Qty 6x) Cylinders # PC102-001 (Qty 6x) Wrist Pins (Qty 12x) Wrist Pin Circlips (Qty 6x) Piston Ring Sets (Top 1.2 / Middle 1.2 / Bottom 3.0mm) Additional Notes: The Arrow Mark On The Piston Crown Must Point Towards The Flywheel During Engine Assembly. For Naturally Aspirated Engines (NOT-Turbo) Patrick Motorsports Is A Mahle Master Distributor - And We Install What We Sell! Please Contact Us For Your Particular Needs. (602) 244-0911 [email protected] Part Number: PS102-003Alternate Part Numbers: ENG PS102 018 / PS102-018 / PS102.018 / PS102018 / PS102 003 / PS102-003 / PS102.003 / PS102003 07/29/2026