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The Supertech piston set for VW 1.8T 20V engines fits an 81mm bore with a 32.7mm crown height and a -4cc dish to yield a 9.3:1 compression ratio; the set of four pistons excludes rings. This kit suits 1.8T 20-valve rebuilds where the specified dish and compression ratio are required to maintain correct combustion chamber volume.
Supertech VW 1.8T 20V 81mm 32.7mm CH -4cc Dish 9.3:1 CR Piston - Set of 4 (Excl Rings)
