{"title":"Camshaft","description":null,"products":[{"product_id":"socal-alternate-firing-order-3388-gm-duramax","title":"2001-2016 Duramax SoCal Stage 1 Alternate Fire Camshaft (3388AF)","description":"\u003cp\u003e\u003cstrong\u003e2001-2016 Duramax SoCal Stage 1 Alternate Fire Camshaft (3388AF)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eExtend the life of your crankshaft by changing the firing order of your engine. The OEM firing order ends with cylinder 3 and begins with cylinders 1 and 2. The result is a 3-1-2 hit to the crankshaft. Duramax cranks have a tendency to break right behind the first rod throw at the intersection of the second main journal, right where the 3-1-2 hit would stress the crankshaft the most. Coincidence? We think not. After carefully researching the different firing orders available to a V-8 engine, SoCal Diesel was the first to implement this \"Alternative Firing Order\" camshaft for the Duramax engine. In moving cylinders 3, 1 and 2 away from each other, we have significantly extended the abuse the crankshaft can withstand. Swapping a few pins in the wiring harness will insure the ECM sends the injector signal to the correct cylinder. Wiring diagrams and instructions are included with every purchase. \u003c\/p\u003e","brand":"SoCal Diesel","offers":[{"title":"Default Title","offer_id":43363071492347,"sku":"3388AF","price":1799.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/files\/Product_Image_-_2025-03-18T100249.610.png?v=1742325243"},{"product_id":"socal-alternate-firing-order-drag-racing-sled-pulling-9200af-gm-duramax","title":"2001-2016 Duramax SoCal Alternative Firing Order Drag Racing\/Sled Pulling (9200AF)","description":"\u003ch4\u003eSoCal Alternate Firing Order | Drag Racing | Sled Pulling #9200AF | GM Duramax\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eExtend the life of your crankshaft by changing the firing order of your engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eThe OEM firing order ends with cylinder 3 and begins with cylinders 1 and 2. The result is a 3-1-2 hit to the crankshaft. Duramax cranks have a tendency to break right behind the first rod throw at the intersection of the second main journal, right where the 3-1-2 hit would stress the crankshaft the most. Coincidence? We think not.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eAfter carefully researching the different firing orders available to a V-8 engine, SoCal Diesel was the first to implement this \"Alternative Firing Order\" camshaft for the Duramax engine. In moving cylinders 3, 1 and 2 away from each other, we have significantly extended the abuse the crankshaft can withstand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eSwapping a few pins in the wiring harness will insure the ECM sends the injector signal to the correct cylinder. Wiring diagrams and instructions are included with every purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eRequires .075 piston valve pockets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eWorks well from 2500-5200 rpm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eRequires a high stall converter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eValve Lash .012\/.012\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eThe camshaft is an integral part of your engines breathing characteristics. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eThe camshaft lobe profiles need to be carefully matched to the rest of the engine components in order to achieve maximum performance for any given application. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWe have designed profiles to meet many different applications that include dedicated Drag Racing and Sled Pulling. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVALVE ADJUSTMENT PROCEDURE\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\" class=\"panel\" data-mce-style=\"text-align: center;\"\u003e\n\u003cul id=\"yui_3_17_2_1_1623770572974_894\"\u003e\n\u003cli id=\"yui_3_17_2_1_1623789582148_572\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cspan class=\"copy_bold\"\u003eRotate the engine and adjust one cylinder at a time.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul id=\"yui_3_17_2_1_1623770572974_894\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cspan class=\"copy_bold\"\u003eWhen the exhaust valves just begin to open, adjust the intake.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul id=\"yui_3_17_2_1_1623770572974_894\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cspan class=\"copy_bold\"\u003eWhen the intake valves are just past maximum life, adjust the exhaust\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"panel\"\u003e\n\u003cul id=\"yui_3_17_2_1_1623770572974_894\"\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"SoCal Diesel","offers":[{"title":"Default Title","offer_id":43363225370875,"sku":"9200AF","price":1799.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/files\/2001-2016-duramax-socal-alternative-firing-order-drag-racingsled-pulling-9200af-socal-diesel-1.png?v=1725582002"},{"product_id":"colt-cams-stage-2-camshaft-gm-duramax","title":"2001-2013 Duramax 6.6L Colt Cams Stage 2 \u0026 3 Camshaft (CC-C.1014.S)","description":"\u003cp\u003e\u003cstrong\u003e2001-2013 Duramax 6.6L Colt Cams Stage 2 \u0026amp; 3 Camshaft (CC.DRM)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Colt Cams Street Grind Camshaft for your Duramax replaces your stock camshaft with a new billet version. Designed, tested, and created at Colt Cams, the shaft requires no modifications or valve relief like other aftermarket cams. Instead it fits in the existing stock location and completely revamps your engine's performance. Installation of the cam drastically improves throttle response, bottom end as well as mid-range power, spool-up, and overall driveability.\u003c\/p\u003e\n\u003cp\u003eWhile most aftermarket camshafts excel at proving more mid to high RPM power very few are able to increase low RPM power, and in most cases forget about this entirely. For this reason Colt Cams engineered a camshaft that produces more power all around, rather than just in higher RPMs. They were able to do this by creating a Tri-Flow system that staggers the opening times of the intake lobes creating a swirl in the system. By opening valves progressively the Colt Cams shaft will give your Duramax all the power it deserves no matter the RPM range.\u003c\/p\u003e\n\u003cp\u003eNot only does the new shaft feature an entirely new grind, but it also replaces the weak stock dowel pin that can shear causing the OE cam gear to slip, and in extreme cases may cause catastrophic engine damage. The dowel pin is replaced with a new keyway and key, this forms a much stronger locking connection that has very little to no chance of failure.\u003c\/p\u003e","brand":"Colt Cams","offers":[{"title":"Stage 2","offer_id":44410557595899,"sku":"CC-C.1014.S","price":1200.0,"currency_code":"CAD","in_stock":false},{"title":"Stage 3","offer_id":44536074469627,"sku":"CC-C.1014.S","price":1499.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/files\/2001-2013-duramax-6-6l-colt-cams-stage-2-and-3-camshaft-cc-c-1014-s-colt-cams-1.png?v=1713558748"},{"product_id":"2001-2004-duramax-socal-alternative-firing-order-camshaft-6480af","title":"2001-2016 Duramax SoCal Alternative Firing Order Camshaft (6480AF)","description":"\u003cp\u003e\u003cstrong\u003e2001-2016 Duramax SoCal Alternative Firing Order Camshaft (6480AF)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eExtend the life of your crankshaft by changing the firing order of your engine.\u003c\/p\u003e\n\u003cp\u003eThe OEM firing order ends with cylinder 3 and begins with cylinders 1 and 2. The result is a 3-1-2 hit to the crankshaft. Duramax cranks have a tendency to break right behind the first rod throw at the intersection of the second main journal, right where the 3-1-2 hit would stress the crankshaft the most. Coincidence? We think not.\u003c\/p\u003e\n\u003cp\u003eAfter carefully researching the different firing orders available to a V-8 engine, SoCal Diesel was the first to implement this \"Alternative Firing Order\" camshaft for the Duramax engine. In moving cylinders 3, 1 and 2 away from each other, we have significantly extended the abuse the crankshaft can withstand.\u003c\/p\u003e\n\u003cp\u003eSwapping a few pins in the wiring harness will insure the ECM sends the injector signal to the correct cylinder. Wiring diagrams and instructions are included with every purchase.\u003c\/p\u003e","brand":"SoCal Diesel","offers":[{"title":"Default Title","offer_id":44689230364923,"sku":"6480AF","price":1799.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/files\/Product_Image_-_2025-03-18T100249.610.png?v=1742325243"},{"product_id":"2001-2004-duramax-socal-alternative-firing-order-drag-racing-sled-pulling-9100af","title":"2001-2016 Duramax SoCal Alternative Firing Order Drag Racing\/Sled Pulling #9100AF","description":"\u003cul\u003e\n\u003cli\u003eExtend the life of your crankshaft by changing the firing order of your engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eThe OEM firing order ends with cylinder 3 and begins with cylinders 1 and 2. The result is a 3-1-2 hit to the crankshaft. Duramax cranks have a tendency to break right behind the first rod throw at the intersection of the second main journal, right where the 3-1-2 hit would stress the crankshaft the most. Coincidence? We think not.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eAfter carefully researching the different firing orders available to a V-8 engine, SoCal Diesel was the first to implement this \"Alternative Firing Order\" camshaft for the Duramax engine. In moving cylinders 3, 1 and 2 away from each other, we have significantly extended the abuse the crankshaft can withstand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eSwapping a few pins in the wiring harness will insure the ECM sends the injector signal to the correct cylinder. Wiring diagrams and instructions are included with every purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDoes not require any piston valve pockets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eWorks well from idle past 3800 rpm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eValve Lash .012\/.012\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eThe camshaft is an integral part of your engine breathing characteristics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eThe camshaft lobe profiles need to be carefully matched to the rest of the engine components in order to achieve maximum performance for any given application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eWe have designed profiles to meet many different applications that include dedicated Drag Racing and Sled Pulling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVALVE ADJUSTMENT PROCEDURE\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\" class=\"panel\" data-mce-style=\"text-align: center;\"\u003e\n\u003cul id=\"yui_3_17_2_1_1623770572974_894\"\u003e\n\u003cli id=\"yui_3_17_2_1_1623789582148_572\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cspan class=\"copy_bold\"\u003eRotate the engine and adjust one cylinder at a time.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul id=\"yui_3_17_2_1_1623770572974_894\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cspan class=\"copy_bold\"\u003eWhen the exhaust valves just begin to open, adjust the intake.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul id=\"yui_3_17_2_1_1623770572974_894\"\u003e\n\u003cli style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cspan class=\"copy_bold\"\u003eWhen the intake valves are just past maximum life, adjust the exhaust\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"panel\"\u003e\n\u003cul id=\"yui_3_17_2_1_1623770572974_894\"\u003e\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"SoCal Diesel","offers":[{"title":"Default Title","offer_id":44689234067707,"sku":"9100AF","price":1799.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/files\/2001-2016-duramax-socal-alternative-firing-order-drag-racingsled-pulling-9100af-socal-diesel-1.png?v=1725589182"},{"product_id":"2001-2016-6-6l-duramax-wagler-stage-one-alternate-fire-camshaft-street-c6686-1","title":"2001-2016 Duramax Wagler Stage 1 \u0026 2 Alternate Fire Camshaft Street (C6686)","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan data-mce-fragment=\"1\"\u003e2001-2016 Duramax Wagler Stage 1 \u0026amp; 2 Alternate Fire Camshaft Street (C6686)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eWagler's Alternate Fire Camshaft Street Stage One gives your Duramax a boost in performance \u0026amp; driveability.\u003c\/span\u003e\u003c\/p\u003e","brand":"Wagler Competition","offers":[{"title":"Stage 1 \/ LB7","offer_id":44777257107707,"sku":"C6686-1","price":1345.5,"currency_code":"CAD","in_stock":true},{"title":"Stage 1 \/ LLY","offer_id":46235062239483,"sku":"","price":1345.5,"currency_code":"CAD","in_stock":true},{"title":"Stage 1 \/ LBZ","offer_id":46235062272251,"sku":"","price":1345.5,"currency_code":"CAD","in_stock":true},{"title":"Stage 1 \/ LMM","offer_id":46235062305019,"sku":"","price":1345.5,"currency_code":"CAD","in_stock":true},{"title":"Stage 1 \/ LML","offer_id":46235062337787,"sku":"","price":1345.5,"currency_code":"CAD","in_stock":true},{"title":"Stage 2 \/ LB7","offer_id":44777257140475,"sku":"C6686-2","price":1345.5,"currency_code":"CAD","in_stock":true},{"title":"Stage 2 \/ LLY","offer_id":46235062370555,"sku":"","price":1345.5,"currency_code":"CAD","in_stock":true},{"title":"Stage 2 \/ LBZ","offer_id":46235062403323,"sku":"","price":1345.5,"currency_code":"CAD","in_stock":true},{"title":"Stage 2 \/ LMM","offer_id":46235062436091,"sku":"","price":1345.5,"currency_code":"CAD","in_stock":true},{"title":"Stage 2 \/ LML","offer_id":46235062468859,"sku":"","price":1345.5,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/files\/2001-2016-duramax-wagler-stage-1-and-2-alternate-fire-camshaft-street-c6686-wagler-competition.png?v=1725590279"},{"product_id":"2001-2010-duramax-6-6l-remanufactured-keyed-camshaft","title":"2001-2010 Duramax 6.6L Refurbished Keyed Camshaft","description":"\u003cp\u003e\u003cstrong\u003e2001-2010 Duramax 6.6L Refurbished Keyed Camshaft\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"PML Engines","offers":[{"title":"Default Title","offer_id":45856923582715,"sku":"PWRHS-DMAX-CAM-01-10","price":300.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/files\/2001-2010-duramax-6-6l-refurbished-keyed-camshaft-powerhouse-machining-1.jpg?v=1719418276"},{"product_id":"2001-2025-duramax-6-6l-callies-stage-1-alternate-firing-order-induction-hardened-270-9","title":"2001-2025 Duramax 6.6L Callies Stage 1 Alternate Firing Order Induction Hardened 108 LSA + 4° Advance Camshaft (270-009)","description":"\u003cp\u003e\u003cstrong\u003e2001-2025 Duramax 6.6L Callies Stage 1 Alternate Firing Order Induction Hardened (270-009)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe main reason for modifying the Duramax firing order with the camshaft is to relieve stress on the front portion of the crankshaft in higher performance applications. The OEM firing order ends at Cylinder #3 and then continues from the beginning through cylinders 1 and 2.\u003c\/p\u003e\n\u003cp\u003eThe Duramax Cranks see the most strain and tend to break right behind the first rod throw at the intersection of the second main journal (the snout). We have seen failures on anything from mildly modified daily drivers to max effort trucks. The Duramax engine Harmonics become too stressful on the cranks when getting into the higher RPM ranges and bigger power levels with the OEM firing order. With this DuraStar Alternate Firing Camshaft, cylinders 1, 2, and 3 are moved away from each other to distribute the stress of combustion more evenly and help reduce the abuse to your crankshaft.\u003c\/p\u003e\n\u003cp\u003eDuramax engines respond to alternate firing camshafts better than any other diesel on the market. Thanks to the high flow aluminum heads, the right camshaft can increase the Duramax's Head flow considerably. Dyno tests have proven a much broader power curve, increasing HP and Torque through all RPM's making this mod perfect for anything from a daily driver to NHRDA usage.\u003c\/p\u003e","brand":"Callies","offers":[{"title":"Default Title","offer_id":47775654707451,"sku":"270-009","price":1154.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/files\/calliescamshaftduramax-6_480x480_075ec35b-f7ce-45ba-8614-108624f9ca37.webp?v=1765901528"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/3298\/1184\/collections\/Icons_31_0266f347-c221-4511-8542-513a161d7a0b.webp?v=1790261675","url":"https:\/\/www.ocdiesel.ca\/collections\/2001-2004-gm-duramax-lb7-camshaft.oembed","provider":"OCDiesel","version":"1.0","type":"link"}