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Coil bind is measured at 24.7mm and seat pressure was measured at 10.51lbs. per min.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eD-series VTEC (all)\u003c\/li\u003e\n\u003cli\u003eB-series VTEC (all)\u003c\/li\u003e\n\u003cli\u003eF20\/22C (S2000)\u003c\/li\u003e\n\u003cli\u003eH22Ax (all)\u003c\/li\u003e\n\u003cli\u003eK-series -\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e**\u003c\/span\u003eK20A\/K20A2\/K24A2 engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e16pc set.\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e\u003cbr\u003e**Important K-series Retainer Info**:\u003c\/span\u003e\u003cbr\u003eSupertech Titanium K-series retainers require the use of either OEM K-series dual-valve-spring keepers or Supertech brand keepers for proper fitment. 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Honda changed the OEM keeper groove angle on all 04+ K20-series engines (ie. single valve spring equipped) making them incompatible with all dual valve spring retainers.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFactory single valve spring equipped K-series engines:\u003cbr\u003e\u003c\/em\u003e- 02-05 Civic Si K20A3\u003cbr\u003e- 02-06 RSX Base K20A3\u003cbr\u003e- 04-06 RSX Type-S K20A2\/Z1\u003cbr\u003e- 06-11 Civic Si K20Z3\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFactory dual valve spring equipped K-series engines:\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e- 02-mid'03 RSX Type-S K20A2\u003cbr\u003e- 04-08 TSX K24A2\u003cbr\u003e- 00-09 S2000  F20C\/F22C\u003cbr\u003e- 01-10 JDM RSX Type-R \u0026amp; Civic Type-R K20A\u003cbr\u003e\u003cbr\u003eSupertech keepers (5.5mm 7-degree keeper) part number:  KPR-5.5\/7A x 32pcs\u003cbr\u003eOEM Honda\/Acura part number: 14781-PR7-A01 x 32pcs\u003cbr\u003e\u003cbr\u003eIf performing a full dual valve spring upgrade to a single valve spring equipped K-series engine, dual valve spring seats are required to complete the upgrade aside from dual valve springs, retainers, and keepers,.\u003c\/p\u003e\n\u003c!----\u003e","published_at":"2026-01-10T11:20:30-05:00","created_at":"2024-06-28T15:03:48-04:00","vendor":"Stocky AutoWorks","type":"","tags":["B-SERIES","D-SERIES","Engine","F-SERIES","H-SERIES","K-SERIES","Retainers","Supertech"],"price":19500,"price_min":19500,"price_max":19500,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":43302490538166,"title":"B-SERIES VTEC","option1":"B-SERIES VTEC","option2":null,"option3":null,"sku":"RET-K20A2\/T2","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Supertech Titanium Retainers - 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They can handle a maximum net lift of 15.10mm. Coil bind is measured at 24.7mm and seat pressure was measured at 10.51lbs. per min.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eD-series VTEC (all)\u003c\/li\u003e\n\u003cli\u003eB-series VTEC (all)\u003c\/li\u003e\n\u003cli\u003eF20\/22C (S2000)\u003c\/li\u003e\n\u003cli\u003eH22Ax (all)\u003c\/li\u003e\n\u003cli\u003eK-series -\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e**\u003c\/span\u003eK20A\/K20A2\/K24A2 engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e16pc set.\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e\u003cbr\u003e**Important K-series Retainer Info**:\u003c\/span\u003e\u003cbr\u003eSupertech Titanium K-series retainers require the use of either OEM K-series dual-valve-spring keepers or Supertech brand keepers for proper fitment. Keepers from a single valve spring equipped K-series engine are\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eincompatible\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003ewith Supertech titanium retainers. Honda changed the OEM keeper groove angle on all 04+ K20-series engines (ie. single valve spring equipped) making them incompatible with all dual valve spring retainers.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFactory single valve spring equipped K-series engines:\u003cbr\u003e\u003c\/em\u003e- 02-05 Civic Si K20A3\u003cbr\u003e- 02-06 RSX Base K20A3\u003cbr\u003e- 04-06 RSX Type-S K20A2\/Z1\u003cbr\u003e- 06-11 Civic Si K20Z3\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFactory dual valve spring equipped K-series engines:\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e- 02-mid'03 RSX Type-S K20A2\u003cbr\u003e- 04-08 TSX K24A2\u003cbr\u003e- 00-09 S2000  F20C\/F22C\u003cbr\u003e- 01-10 JDM RSX Type-R \u0026amp; Civic Type-R K20A\u003cbr\u003e\u003cbr\u003eSupertech keepers (5.5mm 7-degree keeper) part number:  KPR-5.5\/7A x 32pcs\u003cbr\u003eOEM Honda\/Acura part number: 14781-PR7-A01 x 32pcs\u003cbr\u003e\u003cbr\u003eIf performing a full dual valve spring upgrade to a single valve spring equipped K-series engine, dual valve spring seats are required to complete the upgrade aside from dual valve springs, retainers, and keepers,.\u003c\/p\u003e\n\u003c!----\u003e"}, onVariantSelected: selectCallback, enableHistoryState: true }); $('.selector-wrapper:eq(0)').prepend('Motor'); $('.single-option-selector:eq(0)').val("B-SERIES VTEC").trigger('change'); }); //get variant form url var getVariant = function () { var params; var parser = document.createElement('a'); parser.href = window.location.href; var query = parser.search.substring(1); var vars = query.split('&'); for (var i = 0; i < vars.length; i++) { var pair = vars[i].split('='); var params = decodeURIComponent(pair[1]); } return params; } var showAddtocart = jQuery(".product-options-bottom").offset().top; //check position to show form in bottom function checkPosition(){ var scrollTop = jQuery(window).scrollTop(); if (scrollTop > showAddtocart) { jQuery(".add-to-cart-fixed").addClass('active'); //sync variant : content form => bottom form var idVariant = getVariant(); $("#second-select").val(idVariant); } else { jQuery(".add-to-cart-fixed").removeClass('active'); } }; jQuery(window).scroll(function () { checkPosition() }); //send request in bottom form jQuery(".button-addtocard").click(function(){ jQuery(".product-options-bottom #AddToCart-product-template").click(); }); //sync variant : content form => bottom form jQuery('#second-select').change(function(){ data_variant1 = ($(this).find(':selected').data('variant1')); data_variant2 = ($(this).find(':selected').data('variant2')); data_variant3 = ($(this).find(':selected').data('variant3')); if (data_variant1 != "") { jQuery("#swatch-0-" + data_variant1).click(); } if (data_variant2 != "") { jQuery("#swatch-1-" + data_variant2).click(); } if (data_variant3 != "") { jQuery("#swatch-2-" + data_variant3).click(); } });