Chevs of the 40s » Chevy Parts » Engine » Valve Covers & Related » Item #BIS21120BLK Valve Cover Breather - PCV. Smooth - Powder Coated Black Billet Item # BIS21120BLK Billet Specialties breathers are precision machined in the USA from 6061-T6 billet aluminum and feature a unique 2 pc. design with a positive O-ring seal. Fits 1-1/4" Valve Cover hole. This part fits most Cars and Trucks.; exceptions may apply. Please read the complete description to see if this part fits your specific vehicle and application. Price: $60.25 Each Qty: Add to Cart This product can expose you to a chemical, which is known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov CA Prop 65 Warning This product can expose you to a chemical, which is known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov !='']Breathers are easily maintained with a washable filter element, while the PCV breather features a common replaceable PCV valve with a barbed fitting for 3/8" hose. Available for 1" or 1-1/4" diameter valve cover holes. Valve covers should be run with one breather and one PCV valve or PCV breather for proper air circulation. Reviews There are no reviews at this time Login to Write A Review Fits Vehicle Models Product Fits Vehicle Models There are no specific vehicles models specified for this part.