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Nova Engines 16x22.5mm .21 Copper Head Gasket Shim Set. This shim set is designed to fine tune your nitro engines performance based on conditions. Made from copper, these shims come in a variety of thicknesses to accurately adjust the gap between the piston and head button to adjust compression.
Note: Inventory may include either (3) 0.15mm Shims or (1) 0.15mm Shim and (1) 0.30mm Shim.
Includes:
- (1) 0.10mm Shim
- (3) 0.15mm Shim
- (1) 0.20mm Shim
