A-Premium 16Pcs Stainless Steel Engine Roller Rocker Arms with Needle Bearings Compatible with Chevy BBC 454, 1.8 Ratio, 7/16" Studs

[Vehicle Fitment]: Compatible with Chevy BBC 454, 1.8 Ratio, 7/16" Studs [Important Note]: 17-4PH Stainless Steel Roller Rocker Arms, Needle Bearings [Specifications]: ①Reference Number: 0245404; ②Rocker Arm Material: 17-4PH Stainless Steel; ③Rocker Arm Style: Full roller; ④Rocker Arm Mounting Style: Stud;⑤Rocker Arm Body Style: Standard; ⑥Self-Aligning: No [Product Features]: Precision machined rocker arm contains needle bearings, which reduce friction, carry higher pressure, maintain the reliability of the rocker arm; Different rocker ratios to suit multiple cam profiles; Controls the basic engine cycle and maintains proper engine operation [Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted Rocker Arm Kits. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind