Omega Piston Sets | Early Post-war models with the 6 Cylinder Engine

OMEGA PISTONS

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 1^st 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