PISTON SETS FOR THE EARLY POST-WAR 6 CYLINDER ENGINE MODELS
A complete set of pistons, including rings and pins, have been manufactured exclusively for Flying Spares in the UK by Omega Pistons.
Omega has redesigned these using the latest materials and technology. The pistons are made from a forged alloy, as opposed to casting methods that were employed 70 years ago. They incorporate a solid skirt, with a modern three-ring pack and a lighter gudgeon pin.
Traditional less-precise piston manufacturing techniques, typical of the era when these engines were 1st commissioned, can lead to piston rock which contributes to piston ring and groove wear. This leads to higher oil consumption, increases in gas blow-by, and lower cylinder compressions often associated with poor starting. The Omega Pistons have been designed to overcome these issues.
Our extensive research has established that the majority of the B60 engines in existence have previously been worked on. Usually involving re-facing, decking & skimming of the cylinder block and, or the cylinder head on average by 0.010". The Omega pistons are 0.010" shorter than the original to account for this machining which helps maintain the correct compression ratio.
Design: Mass distribution and proportioning of the crown, improved gudgeon pin bosses, and braced skirts
Material: Aerospace-grade forging stock gives a lighter but stronger piston
Heat treatment: Optimised for strength and durability
Machining: CNC machines used at all stages allow greater control of tolerances. No need for balancing or matching up the individual pistons
Finishing: Honing (gudgeon pins and pin boss bores) and a proprietary coating
Gudgeon pin: Much higher specification material used than standard pins, improved CNC machining, and optimised heat treatment
Rings: Modern three-ring pack with a life expectancy of 100,000 miles
4.9 Litre Engine Pistons
Suitable for 1955 to 1959 models: Silver Cloud & Bentley S1 R Type Continental D & E Series & Silver Wraith
UE2965OM - Standard size
UE2969OM - 0.020" Over size
UE2973OM - 0.040" Over size
4.5 Litre Engine Pistons
Suitable for 1952 to 1955 models: Late MkVI & all R Type, R Type Continental A, B & C Series & Silver Dawn & Silver Wraith
RE14773OM - Standard size
RE15791OM - 0.015" Over size
RE15796OM - 0.040" Over size
4.25 Litre Engine Pistons
Suitable for 1946 to 1952 models: Early MkVI & Early Silver Dawn & Silver Wraith
Outstanding Customer Reviews 