{"product_id":"comp-cams-17002-1-high-energy-die-cast-aluminum-roller-rocker-arm-1-6-ratio-3-8in-stud-sbc","title":"COMP Cams 17002-1 High Energy Die Cast Aluminum Roller Rocker Arm 1.6 Ratio 3\/8in Stud SBC","description":"\u003cp\u003eThe \u003cstrong\u003eCOMP Cams 17002-1\u003c\/strong\u003e is a \u003cstrong\u003eHigh Energy Die Cast Aluminum Full Roller Rocker Arm\u003c\/strong\u003e engineered for the \u003cstrong\u003eSmall Block Chevy (SBC)\u003c\/strong\u003e family. With a \u003cstrong\u003e1.6:1 ratio\u003c\/strong\u003e, needle bearing fulcrum, and precision roller tip, this \u003cstrong\u003erocker arm\u003c\/strong\u003e delivers reduced valvetrain friction, improved throttle response, and more consistent lift across the RPM range compared to factory stamped steel units. Designed for \u003cstrong\u003eCOMP Cams\u003c\/strong\u003e quality standards, the 17002-1 fits SBC engines displacing 262 through 400 cubic inches on 3\/8 in. stud cylinder heads.\u003c\/p\u003e\n\u003ch4\u003eWhy Upgrade From Stock Stamped Steel Rocker Arms\u003c\/h4\u003e\n\u003cp\u003eFactory stamped steel rocker arms use a sliding tip that drags across the valve stem throughout its arc. This sliding contact generates friction and heat, wastes power that would otherwise reach the wheels, accelerates valve stem and tip wear, and elevates oil temperatures over extended use.\u003c\/p\u003e\n\u003cp\u003eThe COMP Cams High Energy roller rocker replaces that sliding contact with a hardened \u003cstrong\u003eroller tip\u003c\/strong\u003e that rolls across the valve stem instead of scrubbing it. The result is measurably lower friction at the tip, reduced heat generation in the valvetrain oil, and a more precise valve event. The needle bearing fulcrum further eliminates the pivot friction present in stamped rocker trunnions, so the rocker moves freely at all engine speeds. Together, these improvements translate to more efficient valve actuation, better throttle response, and real-world horsepower gains without internal engine modification beyond the rocker swap itself.\u003c\/p\u003e\n\u003cp\u003eDie cast aluminum construction keeps unsprung valvetrain mass low relative to iron or heavy stamped units, which helps the valvetrain follow the cam profile faithfully at higher RPM and reduces stress on the valve springs over time.\u003c\/p\u003e\n\u003ch4\u003eSpecifications and Construction Detail\u003c\/h4\u003e\n\u003cp\u003eThe COMP Cams High Energy rocker arm body is \u003cstrong\u003edie cast aluminum\u003c\/strong\u003e, providing a favorable strength-to-weight ratio suited for street and mild performance applications. The fulcrum uses a \u003cstrong\u003eneedle bearing\u003c\/strong\u003e assembly retained by a snap ring, eliminating the need for staking or pressed trunnion replacement. The tip is a full roller, hardened to withstand repeated contact with the valve stem across extended service intervals.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e1.6:1 ratio\u003c\/strong\u003e increases valve lift by a factor of 1.6 relative to cam lobe lift, which is the standard ratio for most SBC cylinder heads. This rocker accepts valve springs up to \u003cstrong\u003e1.430 in. in outside diameter\u003c\/strong\u003e and handles \u003cstrong\u003eopen spring pressures up to 550 lbs.\u003c\/strong\u003e, making it compatible with a wide range of street performance camshaft and spring packages.\u003c\/p\u003e\n\u003cp\u003eThese rockers are \u003cstrong\u003enot self-aligning\u003c\/strong\u003e and require a \u003cstrong\u003eguide plate\u003c\/strong\u003e to maintain proper lateral positioning on the stud. This is consistent with standard SBC stud-mount valvetrain assembly.\u003c\/p\u003e\n\u003ch4\u003eApplication and Fitment\u003c\/h4\u003e\n\u003cp\u003eThis rocker arm is designed for \u003cstrong\u003eChevrolet and GMC Small Block V8\u003c\/strong\u003e engines in the following displacements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inches\u003c\/li\u003e\n\u003cli\u003eBroad fitment spanning 1955 through 1999 model years across hundreds of Chevy and GMC vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStud size requirement:\u003c\/strong\u003e This rocker arm is engineered for \u003cstrong\u003e3\/8 in. rocker arm studs only.\u003c\/strong\u003e It is \u003cstrong\u003enot compatible\u003c\/strong\u003e with cylinder heads using 7\/16 in. studs. Verify your head's stud size before ordering.\u003c\/p\u003e\n\u003cp\u003eA guide plate is required for proper lateral alignment. This rocker is not self-aligning.\u003c\/p\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x COMP Cams High Energy Die Cast Aluminum Full Roller Rocker Arm (single piece)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This part is sold \u003cstrong\u003eindividually (one rocker arm per order)\u003c\/strong\u003e. A complete Small Block Chevy V8 engine requires \u003cstrong\u003e16 rocker arms total\u003c\/strong\u003e. If you are equipping a full engine, see the sibling part \u003cstrong\u003e17002-16\u003c\/strong\u003e, which is sold as a set of 16.\u003c\/p\u003e\n\u003ch4\u003eFull Specifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100.098%; height: 372.282px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 36.8063%; height: 19.5938px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"width: 59.9521%; height: 19.5938px;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003e17002-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eUPC\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003e036584215936\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eCOMP Cams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eSeries\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eHigh Energy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eStyle\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eFull Roller Rocker Arm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eRatio\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003e1.6:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eStud Size\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003e3\/8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eDie Cast Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eFulcrum Type\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eNeedle Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eTrunnion Retention\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eSnap Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eRoller Tip\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eSelf-Aligning\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eNo (guide plate required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eMax Open Spring Pressure\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003e550 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eMax Spring Diameter\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003e1.430 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eSBC 262-400 c.i., 3\/8 in. stud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eSold As\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003eIndividually (1 piece)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003e1-Year Limited (void for racing applications)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.8063%; height: 19.5938px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 59.9521%; height: 19.5938px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eRelated and Sibling Parts\u003c\/h4\u003e\n\u003cp\u003eIf you are building or rebuilding a complete SBC engine, consider the following related options:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e17002-16\u003c\/strong\u003e Same COMP Cams High Energy Die Cast Aluminum 1.6:1 Roller Rocker Arm, sold as a \u003cstrong\u003eset of 16\u003c\/strong\u003e for a full engine kit. Purchasing the set typically offers better value than buying 16 individual pieces.\u003c\/li\u003e\n\u003cli\u003eA \u003cstrong\u003e1.5:1 ratio variant\u003c\/strong\u003e of the 17002-1 is also available for applications where the lower ratio is specified or preferred.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProposition 65 Warning\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit \u003cstrong\u003ewww.P65Warnings.ca.gov\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eHow many 17002-1 rocker arms do I need for a full SBC engine?\u003c\/strong\u003e\u003cbr\u003eA complete Small Block Chevy V8 engine has 16 valves and therefore requires 16 rocker arms. This listing is for one (1) rocker arm. If you are equipping a full engine, order 16 of this part or purchase the sibling part 17002-16, which is sold as a complete set of 16.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat stud size does the 17002-1 require?\u003c\/strong\u003e\u003cbr\u003eThis rocker arm is designed exclusively for \u003cstrong\u003e3\/8 in. rocker arm studs\u003c\/strong\u003e. It will not fit or function correctly on cylinder heads equipped with 7\/16 in. studs. Check your head specifications before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this rocker arm fit my year of small block Chevy?\u003c\/strong\u003e\u003cbr\u003eFitment covers SBC engines from approximately 1955 through 1999, spanning the full range of 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inch displacements. The key requirement is that your cylinder head uses 3\/8 in. rocker arm studs. If your heads have been upgraded to 7\/16 in. studs, this part is not compatible.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the 17002-1 work with stock valve springs?\u003c\/strong\u003e\u003cbr\u003eYes, in most cases. The maximum open spring pressure rating is 550 lbs., which exceeds the pressure of virtually all factory SBC valve springs. The maximum spring outside diameter supported is 1.430 in. Confirm your spring dimensions are within these limits before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 17002-1 sold individually or as a set?\u003c\/strong\u003e\u003cbr\u003eIt is sold \u003cstrong\u003eindividually\u003c\/strong\u003e one rocker arm per order. For a full 16-piece engine set, see part number 17002-16.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this rocker arm require a guide plate?\u003c\/strong\u003e\u003cbr\u003eYes. This rocker arm is not self-aligning. A guide plate is required to maintain proper lateral alignment on the stud. This is standard practice for stud-mount SBC valvetrain assemblies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the ratio of the 17002-1, and why does it matter?\u003c\/strong\u003e\u003cbr\u003eThis rocker arm has a \u003cstrong\u003e1.6:1 ratio\u003c\/strong\u003e, which is the stock ratio for most Small Block Chevy cylinder heads. The ratio multiplies cam lobe lift -- a cam with 0.300 in. of lobe lift will produce 0.480 in. of valve lift through a 1.6:1 rocker. Using the correct ratio ensures your camshaft's intended lift specification is accurately delivered to the valve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the warranty on the 17002-1?\u003c\/strong\u003e\u003cbr\u003eCOMP Cams provides a \u003cstrong\u003e1-Year Limited Warranty\u003c\/strong\u003e on this rocker arm. The warranty is void if the part is used in racing applications. This part is intended for street and mild performance use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat advantage does a roller tip rocker arm have over a stamped steel rocker?\u003c\/strong\u003e\u003cbr\u003eStock stamped steel rocker arms use a sliding tip that generates friction and heat as it drags across the valve stem. The COMP Cams High Energy roller rocker uses a hardened roller tip that rolls across the stem, reducing friction, lowering valvetrain operating temperatures, and delivering a more consistent valve event. The needle bearing fulcrum also reduces pivot friction compared to the plain-surface fulcrum in stamped rockers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat engines is the 17002-1 compatible with?\u003c\/strong\u003e\u003cbr\u003eThis rocker arm fits Chevrolet and GMC Small Block V8 engines displacing 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inches, produced from 1955 through 1999, provided the cylinder head uses 3\/8 in. rocker arm studs. Common applications include the Chevy 350 and 305 found in C\/K trucks, Camaros, Corvettes, Impalas, El Caminos, and a wide range of other GM vehicles from that era.\u003c\/p\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":45945065963599,"sku":"CCA17002-1","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/comp-cams-17002-1-sbc-1-6-roller-rocker-arm.png?v=1782221880","url":"https:\/\/www.blackopsautoworks.com\/products\/comp-cams-17002-1-high-energy-die-cast-aluminum-roller-rocker-arm-1-6-ratio-3-8in-stud-sbc","provider":"Black Ops Auto Works","version":"1.0","type":"link"}