{"product_id":"ultra-pro-magnum-rockers","title":"ULTRA PRO MAGNUM ROCKERS","description":"\u003cp\u003eUltra Pro Magnum Roller Rocker Arms 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. 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 trunions, 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\/p\u003e\u003cul\u003e\n\u003cli\u003eChevy V8 348-409 cid - 3\/8\" Stud - 1.7 Ratio\u003c\/li\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 trunions, precision-sorted needle bearings and hardened roller tips.\u003c\/li\u003e\n\u003cli\u003eFor use with up to 850 lbs of open spring pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":44538127319351,"sku":"CO1629-16","price":1037.75,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/60953.jpg?v=1780435044","url":"https:\/\/enginemaster.com.au\/products\/ultra-pro-magnum-rockers","provider":"Engine Master","version":"1.0","type":"link"}