Product Information
Piston and Cylinder Set - 3.8ltr - 102mm - Slip Fit - 9.4:1
This Mahle 3.8-litre Piston and Cylinder Set is a
high-performance engine upgrade for Porsche 996 turbo, 997 turbo and GT2 RS
applications, combining 102mm forged alloy pistons with slip-fit ST52 steel
cylinders.
Fits:
- Porsche 996 TURBO 2000-05
-
Porsche 996 GT2 2001-05
-
Porsche 997 MK1 TURBO 2007-09
-
Porsche 997 MK1 GT2 2007-09
-
Porsche 997 MKII GT2 RS 2011-13
Designed for high-performance Mezger engine builds, the kit
features a 9.4:1 compression ratio, deeper mirrored valve reliefs, offset
piston pin bores and pre-installed piston rings.
What Does This Upgrade Do?
The 102mm bore allows the engine to be built to
approximately 3.8 litres, providing increased displacement and the potential
for greater horsepower and torque when combined with the correct engine
components, turbocharger specification and ECU calibration.
Forged Mahle Pistons
Mahle's forged alloy pistons provide greater and more
consistent strength than conventional cast pistons, making them well suited to
high-output turbocharged engines.
A proprietary anti-friction coating helps reduce friction
and wear while protecting the piston and pin bore surfaces.
The pistons also feature larger, deeper mirrored valve
reliefs and use 23mm wrist pins.
Offset Piston Pin Bore
The piston pin bore is offset, or de-axiert, to help reduce
piston noise and maintain quieter operation similar to the factory design.
ST52 Steel Cylinders
The cylinders are manufactured from ST52 steel, providing
high strength and thermal resistance for demanding turbocharged engine
applications.
The cylinders use a slip-fit design, simplifying
installation without requiring machining of the engine housing for the cylinder
fitment.
Pre-Installed Piston Rings
The sealing and oil-control rings are supplied pre-installed
on the pistons, helping simplify assembly and ensuring the correct piston and
ring combination is supplied as a complete matched kit.
Performance Potential
Increasing engine displacement can provide additional torque
and horsepower, but final output depends heavily on the complete engine
specification.
Turbochargers, camshafts, crankshaft configuration, intake
and exhaust components, fuelling and ECU calibration will all influence the
final result. Builds exceeding 700hp are possible with an appropriately
specified engine and software, but this figure should not be considered a
guaranteed output from the piston and cylinder set alone.
Key Features
- Mahle
3.8ltr piston and cylinder set
- Suitable
for Porsche 996 Turbo / 997 Turbo / GT2 RS applications
- 102mm
bore
- 9.4:1
compression ratio
- Forged
alloy pistons
- ST52
steel cylinders
- Slip-fit
cylinder design
- 23mm
wrist pins
- Larger
and deeper mirrored valve reliefs
- Offset
piston pin bore for quieter operation
- Anti-friction
piston coating
- Pre-installed
piston rings
- Designed
for high-performance turbo engine builds
- Complete
piston and cylinder kit
- Made
in Germany by Mahle GmbH
Mahle Porsche 996 / 997 turbo & GT2 RS Piston and
Cylinder Sets
Mahle performance piston and cylinder sets provide a premium
solution for Porsche Mezger engine rebuilds, displacement upgrades and
high-performance turbo applications.
The combination of 102mm forged pistons, 9.4:1 compression
and ST52 steel slip-fit cylinders makes this 3.8L kit particularly suited to
Porsche 996 Turbo, 997 Turbo and GT2 RS engine builds where increased
displacement, strength and performance potential are required.
Professional engine assembly, measurement and calibration
are recommended to ensure correct clearances and compatibility with the
complete engine specification.
Related reference numbersRelated, superseded, cross reference or alternative numbers for comparison.
100103038TU997 99610391574
99610391673
99610391579
99610391580
99610691678
99710691571
The product you are viewing cross references to these numbers