ACL Race Series Rod Bearings for Porsche 991 3.8L Turbo
Upgrade or rebuild the MA1.71 engine in your Porsche 911 Turbo with the ACL 6B2484H connecting rod bearing set. Designed for the Porsche 991-generation 3.8L twin-turbo engine, these performance rod bearings are manufactured for demanding engine builds where consistent oil clearance, bearing stability, and durability are essential.
ACL Race Series engine bearings use performance-oriented materials and bearing construction intended to withstand the increased loads found in high-performance, motorsport, and modified-engine applications. The 6B2484H set uses ACL’s F781 bearing material and includes upper and lower bearing shells for the engine’s connecting rods.
Product Features
- ACL Race Series performance connecting rod bearings
- Designed for the Porsche MA1.71 3.8L turbo engine
- Tri-metal performance bearing construction
- F781 bearing material
- Includes upper and lower connecting rod bearing shells
- Complete set for the six-cylinder engine
- Engineered for performance, racing, and high-load engine builds
- Helps support consistent oil clearance and crankshaft journal protection
- Suitable for engine rebuilds and upgraded Porsche applications
- Manufacturer part number 6B2484H
ACL Race Series bearings are commonly selected for competition engines and other demanding builds because of their performance-oriented metallurgy and construction.
Vehicle and Engine Compatibility
- Porsche 911 Coupe, 991 generation
- Porsche 911 Cabriolet, 991 generation
- 3.8L turbocharged flat-six engine
- MA1.71 engine code
Product Specifications
- Manufacturer: ACL
- Product Line: Race Series
- ACL Part Number: 6B2484H
- Bearing Size: Standard / STD
- Product Type: Connecting rod bearing set
- Engine: Porsche MA1.71
- Displacement: 3800cc / 3.8L
- Engine Configuration: Flat-six
- Cylinder Head: DOHC, four valves per cylinder
- Induction: Twin turbocharged
- Grade Type: Performance
- Outside Diameter: 2.2047 inches
- Shaft Diameter: 2.0855 inches
- Bearing Width: 15.75 mm
-
Maximum Wall Thickness: 0.0589 inch
Proposition 65 Warnings.
Cancer and Reproductive Harm. See details below.
Items that are not CARB Legal will not be sold and ship to California or CARB states.
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