BTR TITANIUM RETAINER SET FOR 11/32" VALVES - SR004-16 BTR built its reputation on the back of valvetrain design and innovation. Our retainers are available in steel or titanium for numerous applications. Whether you’re doing a stock replacement job or looking to make horsepower measured in the thousands, we have the correct retainer to get you on the road or in the winner’s circle. Retainer weight: 15.6 grams First step ID: .660" Second step ID: .880" OD of retainer: 1.20" Overall height: .374"