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Pistons & Liners

Listed below are the engines sizes and the model and chassis range they were originally fitted to. Please be aware that many earlier 4.25 litre engines have been replaced by later 4.5 engines and that a lot of 4.5 litre engines have been machined out to 4.9 litres. Prior to ordering replacement pistons, we strongly recommend that you confirm the bore size and piston part numbers in your engine.

4.25 litre engine 4.5 litre engine 4.9 litre engine
Silver Dawn SBA-SD SFC- onwards
Silver Wraith WTA1 – WME96 WOF1 – ELW63 ELW64 – onwards
MkVI B2AK – B401LH B2MD – onwards
R Type B2MD – onwards
R Type Continental A, B & C series D & E Series

4.25 litre engine 4.5 litre engine 4.9 litre engine
Bore 3.500" (88.9mm) 3.625" (92mm) 3.750” (95.25mm)
Cubic Capacity 260 cu.ins (4257cc) 279 cu.ins (4566cc) 298 cu ins (4887cc)