{"product_id":"hamilton-cams-07-s-001-performance-cummins-12-valve-springs-1989-1998-cummins","title":"Hamilton Cams 07-s-001 Performance Cummins 12 Valve springs (1989-1998 5.9L Cummins)","description":"\u003ch2 data-start=\"0\" data-end=\"439\"\u003e\u003cstrong data-start=\"0\" data-end=\"86\"\u003eConical Beehive Valve Springs (155 lbs Seat Pressure) – Retainers \u0026amp; Locks Included\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"0\" data-end=\"439\"\u003eUpgrade your 12-valve Cummins valvetrain with our\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"139\" data-end=\"172\"\u003eConical Beehive Valve Springs\u003c\/strong\u003e, delivering\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"185\" data-end=\"213\"\u003e155 lbs of seat pressure\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto keep valves firmly under control up to 4,500rpm\u003cstrong data-start=\"260\" data-end=\"273\"\u003e RPM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"277\" data-end=\"288\"\u003e65lbs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof boost\/drive pressure. This conical design offers enhanced stability for\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"364\" data-end=\"381\"\u003emoderate cams\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"386\" data-end=\"405\"\u003eOEM-size valves\u003c\/strong\u003e, all the way up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"425\" data-end=\"438\"\u003e4,500 RPM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-start=\"441\" data-end=\"444\"\u003e\n\u003ch3 data-start=\"446\" data-end=\"478\"\u003eWhy Conical Beehive Springs?\u003c\/h3\u003e\n\u003cul data-start=\"479\" data-end=\"1079\"\u003e\n\u003cli data-start=\"479\" data-end=\"597\"\u003e\n\u003cstrong data-start=\"481\" data-end=\"512\"\u003eImproved Valvetrain Control\u003c\/strong\u003e: Reduce valve float and reversion, critical issues when boost and RPM levels rise.\u003c\/li\u003e\n\u003cli data-start=\"598\" data-end=\"780\"\u003e\n\u003cstrong data-start=\"600\" data-end=\"628\"\u003ePower-Boosting Potential\u003c\/strong\u003e: Customers have reported\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"654\" data-end=\"672\"\u003e10–12 HP gains\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhen switching from 60 lb springs to our beehives, thanks to consistent valve seal and reduced reversion.\u003c\/li\u003e\n\u003cli data-start=\"781\" data-end=\"932\"\u003e\n\u003cstrong data-start=\"783\" data-end=\"817\"\u003eHigher Seat Pressure (155 lbs @ 1.880″)\u003c\/strong\u003e: Ensures valves won’t be forced open by intake or exhaust pressures, safeguarding against damage and power loss.\u003c\/li\u003e\n\u003cli data-start=\"933\" data-end=\"1079\"\u003e\n\u003cstrong data-start=\"935\" data-end=\"966\"\u003eConical Shape for Stability\u003c\/strong\u003e: The latest spring design improves harmonic damping, leading to smoother, more reliable operation at higher RPM.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1081\" data-end=\"1084\"\u003e\n\u003ch3 data-start=\"1086\" data-end=\"1105\"\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul data-start=\"1106\" data-end=\"1300\"\u003e\n\u003cli data-start=\"1106\" data-end=\"1191\"\u003e\n\u003cstrong data-start=\"1108\" data-end=\"1129\"\u003eRetainers \u0026amp; Locks\u003c\/strong\u003e: Ready to install for most 12-valve Cummins configurations.\u003c\/li\u003e\n\u003cli data-start=\"1192\" data-end=\"1300\"\u003e\n\u003cstrong data-start=\"1194\" data-end=\"1212\"\u003eOptional Locks\u003c\/strong\u003e: Increase your\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1228\" data-end=\"1257\"\u003einstalled height by .075″\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eif needed for specific build requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1302\" data-end=\"1305\"\u003e\n\u003ch3 data-start=\"1307\" data-end=\"1340\"\u003eInstallation \u0026amp; Considerations\u003c\/h3\u003e\n\u003cul data-start=\"1341\" data-end=\"1790\"\u003e\n\u003cli data-start=\"1341\" data-end=\"1456\"\u003e\n\u003cstrong data-start=\"1343\" data-end=\"1356\"\u003eRPM Range\u003c\/strong\u003e: Perfect for builds up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1383\" data-end=\"1396\"\u003e4,500 RPM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith mild-to-moderate cam profiles and stock-size valves.\u003c\/li\u003e\n\u003cli data-start=\"1457\" data-end=\"1647\"\u003e\n\u003cstrong data-start=\"1459\" data-end=\"1478\"\u003eWhen to Upgrade\u003c\/strong\u003e: If you exceed\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1494\" data-end=\"1507\"\u003e4,500 RPM or .360″ lift\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eaftermarket cams, or use\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1549\" data-end=\"1566\"\u003elarger valves\u003c\/strong\u003e, consider stepping up to our\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1596\" data-end=\"1611\"\u003eDual Spring\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ekit for added safety and control.\u003c\/li\u003e\n\u003cli data-start=\"1648\" data-end=\"1790\"\u003e\n\u003cstrong data-start=\"1650\" data-end=\"1684\"\u003eCombat Valve Float \u0026amp; Reversion\u003c\/strong\u003e: Keep harmful exhaust gases out of the intake stroke, preserving combustion quality and maximizing power.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hamilton Cams","offers":[{"title":"Default Title","offer_id":51104929972512,"sku":"07-s-001","price":389.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3043\/6640\/files\/hamilton-cams-07-s-001-performance-cummins-12-valve-springs-1989-1998-cummins-2891051.jpg?v=1779544749","url":"https:\/\/www.southerndieselsupply.com\/products\/hamilton-cams-07-s-001-performance-cummins-12-valve-springs-1989-1998-cummins","provider":"Southern Diesel Supply","version":"1.0","type":"link"}