{"product_id":"ultra-pro-magnum-roller-rocker-arms-for-chevy-3-8-stud-1-6-ratio-4","title":"Ultra Pro Magnum Roller Rocker Arms for Chevy; 3\/8\" Stud, 1.6 Ratio","description":"\u003cp\u003e\u003cspan\u003eThe Ultra Pro Magnum™ Roller Rocker Arms for Chevy V8 265-400 c.i.d. (SBC) Applications not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. These Rocker arms feature a 3\/8\" Stud diameter and 1.6 ratio. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring Oversized trunnions, precision-sorted needle bearings and hardened Roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050\" locks without clearance or fitment issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInvestment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia. Unique black oxide exterior finish helps prevent corrosion and increases durability.\u003c\/li\u003e\n\u003cli\u003eOptimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050\" locks without clearance or fitment issues.\u003c\/li\u003e\n\u003cli\u003eFeature Oversized trunnions, precision-sorted needle bearings and hardened Roller tips.\u003c\/li\u003e\n\u003cli\u003eLifetime Warranty - So strong that we guarantee the Rocker bodies against breakage for life. For use with up to 850 lbs of open spring pressure.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"comp cams","offers":[{"title":"1602-8","offer_id":47807143280862,"sku":null,"price":249.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/2141\/7694\/files\/1602-8_web.jpg?v=1767886771","url":"https:\/\/harringtonspeformanceparts.com\/products\/ultra-pro-magnum-roller-rocker-arms-for-chevy-3-8-stud-1-6-ratio-4","provider":"Harrington's Performace Parts","version":"1.0","type":"link"}