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Forged by Omega for maximum strength in RR58 Guage Aluminium. These give an approximate compression ratio of 10.5:1 when used in an Austin Healey with a Head of original 62CC volume.
They are supplied as a set of 4 with Piston Rings and plain Gudgeon Pins to suit fully floating con rods.
Gudgeon pins to suit original clamped con rods also available.
Please note: If used on a Jensen these give an approximate compression ratio of 9.5:1 if using a Head with the original 70CC volume.