JE forged piston set for the BMW S54 engine. Please select compression ratio and bore when ordering. Original specifications are 11.5:1 and 87mm.

These pistons are made from JE’s 2618 T6 high tensile forged aluminium and designed with their new asymmetrical skirt technology for a more rigid and durable platform. Also featuring JE’s new Smooth Finished Crown process for excellent flame travel. All piston sets include straight wall carbon steel gudgeon pins, clips and piston rings.

12.5:1 compression ratio recommended for race fuel only – 9.0:1 ideal for turbocharged or supercharged applications. Compression ratios based on .040″ head gasket (OE specification). Piston weight from 306-342g dependant on specification.

6-8 week lead time – priced per engine set.