{"product_id":"comp-cams-evolution-retro-fit-hydraulic-roller-lifters-for-holden-engines-85331-16","title":"Comp Cams Evolution Retro-Fit Hydraulic Roller Lifters For Holden Engines - 85331-16","description":"Comp Cams Evolution Retro-Fit Hydraulic Roller Lifters For Holden Engines - 85331-16\u003cbr\u003e\u003cbr\u003eEvolution Hydraulic Roller Lifters with Hydraulic Cartridge Technology (HCT) are a revolutionary patented tappet. Not just an Original Equipment replacement   they are an all-new bespoke design started from a blank canvas developed specifically by COMP Cams to meet the demanding performance and durability our customers desire for their modern and performance street engines. The HCT and proprietary manufacturing processes of these lifters ensure precision and longevity that exceed any lifter on the market.A combination of a self-contained  drop-in hydraulic cartridge within a thick-wall lifter body and accompanying reduced oil volume less affected by aeration delivers the most consistent bleed rates between each lifter. The smaller volume within the hydraulic cartridge creates one of the most responsive and quietest lifters on the market today. Startup noise is greatly reduced  and a precision-controlled bleed-down rate ensures excellent performance at high RPM. The cartridge design also allows for an incredibly stiff lifter body  greatly reducing body distortion and further ensuring consistent hydraulic performance. Other features include increased duration and lift to the camshaft and two oiling features. Another industry first  the hydraulic element of this patented lifter is serviceable  allowing anyone to rebuild lifters in their garage.This set of Evolution hydraulic roller lifters for Holden engines features a seat height of 2.63 inches and 0.125 inches of travel with needle-bearing wheels.\u003cbr\u003e\u003cbr\u003eA combination of self-contained hydraulic cartridge and accompanying reduced oil volume that is less effected by oil aeration delivers the most consistent bleed rates between each lifter.\u003cbr\u003e Edelbrock products offer improved performance and aesthetics for a broad array of vehicles and engines. 'Proven performance' is the philosophy by which Edelbrock was founded and it continues to this day with the highest standards for performance and quality. Edelbrock core products are engineered  manufactured  and tested in the USA to ensure the best quality possible. This is further backed by some of the best warranties in the industry and a highly qualified technical support staff.\u003cbr\u003e The smaller volume within the hydraulic cartridge creates one of the most responsive and quietest lifters on the market.\u003cbr\u003e The patented cartridge lifter provides most consistent performance of any set of lifters in the aftermarket.\u003cbr\u003e Startup noise is greatly reduced and a precision controlled bleed down rate ensure excellent performance at high RPM.\u003cbr\u003e The patented cartridge design also allows for an incredibly stiff lifter body\u003cbr\u003e greatly reducing body distortion and further ensuring consistent hydraulic performance.\u003cbr\u003e\u003cbr\u003eWhen you design and sell the best-engineered performance products in the world\u003cbr\u003e you have to have a rigorous testing program. Why? Without adequate testing\u003cbr\u003e there's no way to stand behind your product with confidence. That's why every product we design and sell at Edelbrock is tested and approved by Edelbrock engineers in a real world environment on state-of-the-art equipment. Our three Super Flow computerized engine dynos are capable of measuring 11 separate engine variables up to speeds of 12\u003cbr\u003e000 rpm. For 2007\u003cbr\u003e we added a new Super Flow SF902 engine dyno. It's fully automated and programmable to simulate various driving situations\u003cbr\u003e and is equipped with WinDyn software for the very latest in testing equipment. For real-world tuning\u003cbr\u003e there's our Super Flow model SF-840 eddy-current chassis dyno that can handle up to 1\u003cbr\u003e000 hp at the wheels and speeds of 200 mph. When all testing is completed\u003cbr\u003e the results evaluated\u003cbr\u003e and the part has passed all performance criteria\u003cbr\u003e then\u003cbr\u003e and only then\u003cbr\u003e is the product deemed ready for production. These precise testing procedures are applied to the entire Edelbrock line for performance that's guaranteed. Edelbrock test vehicles are driven by Edelbrock engineers and employees to get a \"real world\" feeling for the performance improvements. Our products are also tested and used by professional race car teams and drivers. Working with these talented individuals is just another extension of our research and development process so when we say \"proven performance\" we really mean it! Top racing teams in all forms of motorsports rely on Edelbrock to produce parts that they can count on to win races and championships. Further underscoring our commitment to the racing community\u003cbr\u003e Edelbrock is the only aftermarket intake manifold manufacturer licensed by NASCAR.\u003cbr\u003e\u003cbr\u003e","brand":"Comp Cams","offers":[{"title":"Default Title","offer_id":48149987393794,"sku":"CCA-85331-16","price":884.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/0618\/0354\/files\/COMP_85331-16_LIFTERS_Evolution-HCT-Holden-Roller_V2.jpg?v=1785024445","url":"https:\/\/www.lethalperformance.com\/products\/comp-cams-evolution-retro-fit-hydraulic-roller-lifters-for-holden-engines-85331-16","provider":"Lethal Performance","version":"1.0","type":"link"}