Hastings Piston Ring Set - 3.898 1.2 1.2 3.0mm 2010050 The Black Widow Series Is

The Black Widow Series Is FIA FT3 Approved And Is Recommended By ALL Sanctioning Bodies And Racing Series Including The WoO

Has provision for adding the PCV or breather flange at rear

The intake tube/housing was designed to maximize air velocity and was dyno and flow tested using the latest engineering tools for maximum performance and throttle response

Conical Seal

Hastings Piston Ring Set - 3.898 1.2 1.2 3.0mm 2010050 The Black Widow Series IsProduct Description: Piston Rings Premium Ductile and Steel Series 3. 898 in Bore Drop In 1. 2 x 1. 2 x 3. 0 mm Thick Standard Tension Stainless Steel Gas Nitride 8 Cylinder For nearly 100 years, Hastings has earned its reputation as a leader in piston ring technology.