Air Conditioning & Heater Part. Chevy SBC 350 305 400 1.50 Ratio 3/8 Stainless Steel Roller Rocker Arm Set Kit. They have more needle bearings which increases strength while reducing friction. Built to clear 1.55 valve springs. Designed for higher open valve spring pressures Strong 15-5PH stainless steel Specially cast and machined for larger valve springs and retainers Light weight with integral pushrod seat Oversize trunions and full roller precision needle and cage bearings More needle bearings for increased performance and rocker life CNC machined pushrod cups and heat-treated Cr40 roller tips Internal oiling system for long lasting performance H.International Buyers please Note: a. These charges are the buyers responsibility. We are committed to achieving 5 star ratings. We will try our best to resolve any kind of issue. The item "Small Block Chevy SBC 350 400 1.5 Ratio 3/8 Stainless Steel Roller Rocker Arms" is in sale since Wednesday, October 30, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Rocker Arms & Parts". The seller is "bestautoparts-a" and is located in Phoenix, Arizona. This item can be shipped to United States, Canada.