


Make piston installation quicker, easier, and safer with the PROFORM 3.780" Tapered Piston Ring Compressor. Precision-machined from high-quality aluminum, this tapered compressor creates a gradual, even squeeze on the piston rings, allowing the piston to smoothly enter the cylinder bore without damaging ring lands or rings. The tapered design eliminates the frustration of adjustable band-style compressors and helps ensure proper ring alignment during engine assembly. Designed for use with engine blocks equipped with head studs, each compressor features a durable red anodized finish and clearly marked bore size for easy identification in the shop.
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