The ACL Race Series 6B2433H-.25 connecting rod bushes are designed for Porsche GT3 4.0 and 4.2 engines. This 0.25 mm repair-spec version is intended for engine rebuilds requiring a customized clearance after inspection and machining of the crankshaft.
The ACL Race Series range is designed for engines subjected to high stress, particularly in engine tuning and competition. Its design combines metallurgy, dimensional precision, and control of operating clearances to meet the demands of high-performance engines.
A 0.25 mm dimension intended for crankshaft rebuilding
Part number 6B2433H-.25 should not be confused with the STD version, which is intended for a standard dimension, nor with the HX version, which is designed to achieve a different oil clearance on a crankshaft with a standard dimension.
The 0.25 mm dimension is intended for a configuration requiring a corresponding repair dimension. The selection of bearings must therefore be made after precisely measuring the crankpins and checking the oil clearance. This dimension should not be selected based solely on the engine’s power or intended use.
ACL Race Series for Porsche GT3 engines
ACL Race Series bearings are designed to withstand the thermal and mechanical stresses encountered in high-performance internal combustion engines. Their design aims to ensure reliable operation of the connecting rod bush and to maintain adequate oiling when the engine is under heavy load.
This part number thus allows Race Series bearings to be installed during the overhaul or rebuild of a Porsche GT3 engine when the crankshaft dimensions specifically require the use of the 0.25 mm size.
Technical Specifications for ACL Race Series 6B2433H-.25 Bearings
Brand: ACL
Range: Race Series
Manufacturer Part Number: 6B2433H-.25
Type: connecting rod bush
Dimension: 0.25 mm replacement
Application: Porsche GT3
Engine sizes: 4.0 and 4.2
Mounting: 6-cylinder engine
Use: high-performance and racing engines
Selection: based on crankshaft measurement and required oil clearance
