{"title":"Dragcartel","description":null,"products":[{"product_id":"supertech-h1021d-super-combo-set-k20-k24","title":"Supertech K20\/K24 Dual Valve Spring \u0026 Valve Kit Combo – SPRK-H1021D","description":"\u003ch1\u003eSupertech K20\/K24 Dual Valve Spring \u0026amp; Valve Kit Combo – SPRK-H1021D\u003c\/h1\u003e\n\u003ch3\u003eSUPERTECH DUAL VALVE SPRING \u0026amp; (16) VALVE KIT COMBO SPRK-H1021D\u003c\/h3\u003e\n\u003cp\u003eSupertech racing valves are One Piece Forged for strength and reliability, followed by several steps of heat treatments, shot peened, CNC finished and hand polished to strict tolerances by Supertech making these valves the choice for the most demanding applications\u003c\/p\u003e\n\u003cp\u003e.\u003cbr\u003eSupertech Spring \/ Retainer Kits - - ACURA RSX S K20A2 L4 ; - HONDA S BASE F20C1 L4 ; - SPRK-H1021D Supertech Spring \/ Retainer kits are precision matched sets for a complete valve train overhaul. Developed for the performance enthusiast that wants the best the industry has to offer, Supertech Spring \/ Retainer kits are second to none in terms of performance, quality and value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSold as a 16pc set (8 intake \/ 8 exhaust valves)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"dark-red\"\u003eSpecs:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDual Valve Spring 92 psi @ 40.4mm lift\u003cbr\u003eComes with the standard Supertech Titanium retainers\u003cbr\u003eIncludes valve seats for upgrade to dual valve springs\u003cbr\u003eK-Series Engine \u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"dark-red\"\u003eApplication:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eK-series Engines: \u003cbr\u003ek20a2, k24a2\u003c\/p\u003e\n\u003cp\u003eCars:\u003cbr\u003e2001-2005 Acura RSX Type-R, 2002-2006 Acura RSX Type-S, 2004-2006 Acura TSX, 2006-2010 Honda Civic Si\u003c\/p\u003e\n\u003cp\u003eBrand: Supertech\u003cbr\u003eSKU: SPRK-H1021D\u003cbr\u003eCondition: New\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e*Levertijd voor dit product is 5 werkdagen\u003c\/em\u003e\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":59006941888837,"sku":"SPRK-H1021D","price":1350.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1084\/5752\/5573\/files\/supertechk20k24superset.webp?v=1787818419"},{"product_id":"k-series-special-modified-crank-timing-gear-chain-guide-and-tensioner","title":"K-Series Special - Modified Crank Timing Gear, Chain, Guide, and Tensioner","description":"\u003ch3\u003e\u003cstrong\u003eK-Series Special - Modified Crank Timing Gear, Chain, Guide, and Tensioner\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eK-Series Modified Crank Timing Gear\u003c\/strong\u003e\u003cbr\u003eFactory K-Series Timing Chain Gears on higher HP turbocharged or all-motor applications have a higher risk of the timing chain gear to break its positioning dowel pin causing your engine to lose timing and potentially do major damage to the engine in this occurrence.\u003cbr\u003eThe Modified Crank Timing gear solves this problem by modifying the factory gear to be locked in place using a crank key-way.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDRAG CARTEL Lower Timing Chain Guide\u003c\/strong\u003e\u003cbr\u003e Prevents timing chain slippage off the crank pulley chain gear when performing a cam swap. If you're a K-Series head, you know about the keeping the timing chain held up when performing a cam swap and how much of a pain it is when it does slip!\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eK-SERIES K20 and K24 Performance Heavy Duty Timing Chain\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eWith\u003c\/span\u003e\u003cspan\u003ein the growing K Series Market and\u003c\/span\u003e\u003cspan\u003e extra demand of hi-performance driving even with the standard road engine and\/or components such as camshafts that place extra stress on the valve train system, improved chain strength is important. The highly precise side plates reduce friction and improve the revolution fatigue strength by increasing the area of the plates, a reduction in the burrs, and the finish to each individual plate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eMoreover, due to the higher precision of manufacture, the hole size, and shape in the plate have enabled the use of a larger diameter pin, this also contributes to reducing the stretching of the chain under constant high-velocity revolutions by as much as 35%. (From Manufactures data)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eK-Series Race Timing Chain Tensioner\u003c\/strong\u003e\u003cbr\u003eThe Inline Pro K20\/K24 Timing Chain Tensioner is now available to everyone, After years of use and abuse. Tested by some of the fastest K series engines one the planet this is the solution to your faulty timing chain tensioner-related issues. Big Cams, Small Cams, Street Engine's, Race Engines, Turbo or All Motor our tensioner will keep your engine safe. \u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003eEngine codes: \u003c\/div\u003e\n\u003cdiv\u003eK20A2 • K20A3 • K20Z3 • K20Z1 \u003cbr\u003eK24A1 • K24A2 • K24A4 • K24A8 • K24A\u003cbr clear=\"none\"\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr clear=\"none\"\u003e\u003c\/div\u003e\n\u003cdiv\u003eK20 Vehicles: \u003c\/div\u003e\n\u003cdiv\u003eRSX Type S 02-06 DC5\u003cbr clear=\"none\"\u003eRSX Base 02-06 DC5\u003cbr clear=\"none\"\u003eCivic Si 02-05 EP3\u003cbr clear=\"none\"\u003eCivic Si 06-11 FA5 (Sedan)\u003cbr clear=\"none\"\u003eCivic Si 06-11 FG2 (Coupe)\u003cbr clear=\"none\"\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eK24 Vehicle:\u003c\/div\u003e\n\u003cdiv\u003eAccord 06-07 CM4-CM8\u003cbr clear=\"none\"\u003eAccord 08-13 CP2\/CS1\u003cbr clear=\"none\"\u003eCR-V 02-06 RD4-RD9\u003cbr clear=\"none\"\u003eTSX 04-08 CL9\u003cbr clear=\"none\"\u003eAccord 03-05\u003cbr clear=\"none\"\u003eElement 03-06\u003c\/div\u003e","brand":"H-workz performance","offers":[{"title":"k20","offer_id":59006977048901,"sku":null,"price":799.0,"currency_code":"EUR","in_stock":true},{"title":"k24","offer_id":59006977081669,"sku":null,"price":799.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1084\/5752\/5573\/files\/K-SeriesSpecial-ModifiedCrankTimingGear_Chain_Guide_andTensioner.webp?v=1787819638"},{"product_id":"k-series-combo-kit-drag-cartel-cams-and-supertech-spring-kit","title":"K-Series combo kit - DRAG CARTEL Cams and Supertech Spring kit","description":"\u003ch1\u003e\u003cb\u003eK-Series Camshaft \u0026amp; Supertech Valve Spring Combo\u003c\/b\u003e\u003c\/h1\u003e\n\u003cp\u003eAre you ready to safely unlock the \u003cb\u003efull potential\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eof your Honda K-series engine with a matched top-end performance package?\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-69\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-69\"\u003eDrag Cartel Cams and Supertech Spring Kit Special\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-69 citation-end-69\"\u003e\u003cspan\u003e \u003c\/span\u003eprovides the high-lift, high-duration power of professional racing cams combined with the necessary valvetrain stability to handle extreme RPMs.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eDrag Cartel Camshaft Options\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eAll cams are made from \u003cb\u003eALL NEW 8620 Billet Material\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003efor superior strength and are available in four stages to match your build goals:\u003c\/p\u003e\n\u003cdiv class=\"horizontal-scroll-wrapper\"\u003e\n\u003cdiv class=\"table-block-component\"\u003e\n\u003cdiv class=\"table-block has-export-button\"\u003e\n\u003cdiv class=\"table-content not-end-of-paragraph\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003eCam Stage\u003c\/td\u003e\n\u003ctd\u003eIntake Lift \/ Duration @ 0.050\"\u003c\/td\u003e\n\u003ctd\u003eExhaust Lift \/ Duration @ 0.050\"\u003c\/td\u003e\n\u003ctd\u003eIdeal Use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e2.2 ENDURANCE\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 mm \/ 0.250\"\u003c\/td\u003e\n\u003ctd\u003e12.2 mm \/ 0.246\"\u003c\/td\u003e\n\u003ctd\u003eSustained Track\/Endurance Racing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e003.2\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e13.8 mm \/ 0.254\"\u003c\/td\u003e\n\u003ctd\u003e13.2 mm \/ 0.250\"\u003c\/td\u003e\n\u003ctd\u003eUltimate Street\/Mild Racing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e004\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e14.5 mm \/ 0.275\"\u003c\/td\u003e\n\u003ctd\u003e13.2 mm \/ 0.272\"\u003c\/td\u003e\n\u003ctd\u003eDedicated NA Racing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e004.5\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e14.5 mm \/ 0.276\"\u003c\/td\u003e\n\u003ctd\u003e13.7 mm \/ 0.274\"\u003c\/td\u003e\n\u003ctd\u003eExtreme NA Racing \/ Maximum Airflow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eWhat is included in this K-Series Combo?\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eThis package is a comprehensive solution designed to replace your factory camshafts and valvetrain components for high-performance use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDrag Cartel Camshafts (Choice of Stage):\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eHigh-performance 8620 billet steel cams.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSupertech Dual Valve Spring Kit (SPRK-H1021D):\u003c\/b\u003e\u003cspan class=\"citation-68\"\u003e\u003cspan\u003e \u003c\/span\u003eDual springs rated at\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-68\"\u003e92 psi @ 40.4mm lift\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\u003cspan class=\"citation-68\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-68 citation-end-68\"\u003e\u003c\/span\u003e\u003cb\u003eSupertech Titanium Retainers:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eStandard inclusion for maximum strength and weight reduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eValve Seals \u0026amp; Keepers:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eNecessary components for upgrading to the dual valve spring system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eEngine Compatibility and Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eThis combo is designed for popular high-performance K-Series engines commonly found in Honda and Acura vehicles.\u003c\/p\u003e\n\u003cdiv class=\"horizontal-scroll-wrapper\"\u003e\n\u003cdiv class=\"table-block-component\"\u003e\n\u003cdiv class=\"table-block has-export-button\"\u003e\n\u003cdiv class=\"table-content not-end-of-paragraph\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003eMake\u003c\/td\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eEngine Code\u003c\/td\u003e\n\u003ctd\u003eYears\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eRSX Type S 2.0\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eK20A2\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2002–2004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eRSX Type S 2.0\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eK20Z1\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2005–2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eTSX 2.4\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eK24A2\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2004–2008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si 2.0\u003c\/td\u003e\n\u003ctd\u003e\u003cb\u003eK20Z3\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2006–2011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eFits Both K20 \u0026amp; K24 Engines up to 8th Generation Honda Civics\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eIncompatibility Warning:\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eThis combo is NOT compatible with the following engines:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eK24Z7 Block \/ Engines\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eK24W1 Block \/ Engines\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReady to select your stage and build your engine with confidence? Choose your Drag Cartel Cams and upgrade your K-series today!\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Drag Cartel","offers":[{"title":"2.2","offer_id":59007045435717,"sku":null,"price":1687.9,"currency_code":"EUR","in_stock":true},{"title":"3.2","offer_id":59007045468485,"sku":null,"price":1687.9,"currency_code":"EUR","in_stock":false},{"title":"4","offer_id":59007045501253,"sku":null,"price":1687.9,"currency_code":"EUR","in_stock":false},{"title":"4.5","offer_id":59007045534021,"sku":null,"price":1687.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1084\/5752\/5573\/files\/K-SeriesCamsSpecial-DRAGCARTELCamsandSupertechSpringkit.webp?v=1787820332"},{"product_id":"ati-k-series-racing-damper-k20-k24","title":"ATI K-Series Racing Damper  K20 K24","description":"\u003ch1\u003eATI K-Series Racing Damper - Race 918478\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eATI Performance Products, Inc. is proud to introduce its renowned Super Damper for the Honda K-series engine racing applications. Unlike unbalanced underdrive pulleys, which offer no protection to high performance engines, the ATI Super Damper provides balanced dampening of torsional crankshaft vibrations.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eRace dampers allow for the mounting of a dry sump oiling drive gear to the front of the pulley. All K-series Super Dampers exceed SFI 18.1 Safety Certification and are approved for NHRA \u0026amp; IHRA competition. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003e\u003cspan class=\"Products1\"\u003eRace Damper\u003c\/span\u003e - No P\/S or A\/C\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDiameter: 7.074\" • 180mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 7.1 lbs. • 3.22 kg\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H-workz performance","offers":[{"title":"Default Title","offer_id":59008864092485,"sku":"918478","price":539.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1084\/5752\/5573\/files\/ATIK-SeriesRacingDamper-Race918478.webp?v=1787827353"},{"product_id":"ati-super-damper-k-series","title":"ATI Super Damper K-series","description":"\u003ch1\u003eATI Super Damper K-series\u003c\/h1\u003e\n\u003cp\u003eATI Performance Products, Inc. is proud to introduce its renowned Super Damper for the Honda K-series engine for ‘02 Honda Civic Si \u0026amp; Acura RSX for both street and racing applications. Unlike unbalanced underdrive pulleys, which offer no protection to high performance engines, the ATI Super Damper provides balanced dampening of torsional crankshaft vibrations.\u003cbr\u003e\u003cbr\u003eThe street version (Part # 918477) comes with 360° laser-etched timing marks and features a single serpentine belt drive on the outershell to utilize the factory serpentine belt set-up. Race dampers allow for the mounting of a dry sump oiling drive gear to the front of the pulley. All K-series Super Dampers exceed SFI 18.1 Safety Certification and are approved for NHRA \u0026amp; IHRA competition.\u003c\/p\u003e","brand":"H-workz performance","offers":[{"title":"Default Title","offer_id":59009135018309,"sku":"918477","price":520.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1084\/5752\/5573\/files\/ATISuperDamperK-series.webp?v=1787827936"},{"product_id":"arp-head-stud-kit-honda-k-series-k20-k24","title":"ARP Head Stud Kit - Honda K-Series K20 K24","description":"\u003ch1\u003eARP Head Stud Kit - Honda\/Acura K-Series K20 K24 - 208-4701\u003c\/h1\u003e\n\u003cp\u003eExact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. ARP Head Studs include hex nuts and are manufactured by ARP from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat-treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included. \u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eFitment:\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cb\u003eAcura\u003cbr\u003e\u003c\/b\u003e02-06 Acura RSX Base 2.0 K20A3\u003cbr\u003e02-04 Acura RSX Type S 2.0 K20A2\u003cbr\u003e05-06 Acura RSX Type S 2.0 K20Z1\u003cbr\u003e04-08 Acura TSX 2.4 K24A2\u003cbr\u003e\u003cb\u003eHonda\u003cbr\u003e\u003c\/b\u003e03-05 Honda Accord 2.4 K24A4\u003cbr\u003e06-07 Honda Accord 2.4 K24A8\u003cbr\u003e02-05 Honda Civic Si 2.0 K20A3\u003cbr\u003e06-11 Honda Civic Si 2.0 K20Z3\u003cbr\u003e02-06 Honda CRV 2.4 K24A1\u003cbr\u003e03-06 Honda Element 2.4 K24A4\u003cbr\u003e07-11 Honda Element 2.4 K24A8\u003c\/p\u003e","brand":"H-workz performance","offers":[{"title":"Default Title","offer_id":59009482719557,"sku":"208-4701","price":260.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1084\/5752\/5573\/files\/k-series-apr-studkserie.webp?v=1787828207"},{"product_id":"supertech-dual-valve-spring-retainer-combo-sprk-h1021d-k-serie","title":"SUPERTECH Dual Valve Spring \u0026 Retainer Combo – K-serie – SPRK-H1021D","description":"\u003ch1\u003eSUPERTECH DUAL VALVE SPRING \u0026amp; RETAINER COMBO SPRK-H1021D\u003c\/h1\u003e\n\u003cp\u003eSupertech Valve \/ Spring \/ Retainer kits are precision-matched sets for a complete valvetrain overhaul. 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