{"product_id":"brian-tooley-racing-stage-1-v3-gen-iii-iv-ls-truck-camshaft-3-bolt","title":"Brian Tooley Racing Stage 1 V3 GEN III \u0026 IV LS Truck Camshaft - 3 Bolt","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline; background-color: rgb(255, 255, 0);\"\u003e\u003cstrong\u003eBTR-LSTRUCKSTG1-V3 (OPEN BOX) (BRAND NEW)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSpecs: 201\/21X, .542\"\/.542\", 111 LSA\u003c\/h3\u003e\n\u003ch3 style=\"text-align: center;\"\u003eINTAKE LOBE LIFT @ TDC: 0.0284\"\u003c\/h3\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe new BTR V3 Truck Camshafts\u003c\/strong\u003e are the result of our most extensive truck cam development program ever, delivering more average torque and horsepower under the curve—perfect for trucks that need strong midrange performance \u0026amp; enhanced towing capability. \u003c\/p\u003e\n\u003cp\u003eThese cams use advanced valvetrain simulation and dynamic modeling tools, with \u003ca href=\"https:\/\/youtu.be\/7O0KiQlU3OM\" rel=\"noopener\" tabindex=\"0\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(22, 145, 121);\"\u003e\u003cstrong\u003eSpintron\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e development on both square and cathedral port heads to guarantee reliable, stable valvetrain performance across all possible platforms.\u003c\/p\u003e\n\u003cp\u003eNext, we use engine and chassis dyno testing, using full-length truck single and dual exhaust systems and OEM-style intakes.  High-speed exhaust and intake port sensors and in-cylinder combustion pressure measurements on the dyno give feedback on pressure wave dynamics in real time. We perform hundreds of dyno runs to fine-tune cam timing, valve overlap, and exhaust scavenging, maximizing torque and efficiency across the RPM range.\u003c\/p\u003e\n\u003cp\u003eThese “Truck” cams receive the same engineering rigor and combustion development as our race programs. \u003cstrong\u003eNo old catalog lobes!\u003c\/strong\u003e Our goal was a clean-sheet design to bring true motorsport-level engineering discipline to the street and towing world, using the same high-end analytical tools, Spintron lobe development techniques, and wave-based combustion tuning methodologies trusted in professional racing. \u003ca href=\"https:\/\/youtu.be\/-bJKq19W5S8\" rel=\"noopener\" tabindex=\"0\" target=\"_blank\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBTR SKU:                                                   \u003cstrong\u003eBTR-LSTRUCKSTG1-V3     \u003c\/strong\u003e          \u003c\/p\u003e\n\u003cp\u003eCamshaft Description:                            \u003cstrong\u003eBTR LS TRUCK V3 STAGE 1  \u003c\/strong\u003e                                          \u003c\/p\u003e\n\u003cp\u003eEngine Family:                                        \u003cstrong\u003e  GEN III \u0026amp; IV LS Applications    \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRecommended Engine Size:                \u003cstrong\u003e  4.8-6.2L   \u003c\/strong\u003e           \u003c\/p\u003e\n\u003cp\u003eRecommended Valve Springs:               \u003cstrong\u003eBTR-SK018, SP011-16\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNOTE: IF YOU HAVE A 6.0 OR 6.2 TRUCK ENGINE WITH SQUARE PORT HEADS, THE BTR-SK018 SPRING KIT IS RECOMMENDED.         \u003c\/em\u003e                       \u003c\/p\u003e\n\u003cp\u003eRecommended Lifters\/Lifter Trays:      \u003cstrong\u003e(LS7 Lifters) X12499225, (Trays) BTR95365-4    \u003c\/strong\u003e  \u003c\/p\u003e\n\u003cp\u003eSuggested Pushrod Length:                  \u003cstrong\u003e 7.400\"  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e                                                                       \u003c\/p\u003e\n\u003cp\u003eINTAKE DURATION @.050\":                   \u003cstrong\u003e201°      \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEXHAUST DURATION @.050\":             \u003cstrong\u003e  21X°   \u003c\/strong\u003e   \u003c\/p\u003e\n\u003cp\u003eLOBE LIFT INTAKE:                                 \u003cstrong\u003e 0.319\" \u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eLOBE LIFT EXHAUST:                              \u003cstrong\u003e0.319\"  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eINTAKE LOBE LIFT @ T.D.C.:                \u003cstrong\u003e  0.0284\"    \u003c\/strong\u003e          \u003c\/p\u003e\n\u003cp\u003eROCKER ARM RATIO:                         \u003cstrong\u003e     1.7:1     \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNET LIFT INTAKE:                                  \u003cstrong\u003e   0.542\"  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNET LIFT EXHAUST:                         \u003cstrong\u003e        0.542\"  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLOBE SEPARATION ANGLE:                  \u003cstrong\u003e  111°    \u003c\/strong\u003e   \u003c\/p\u003e\n\u003cp\u003eEXPECTED IDLE VAC 750RPM:            \u003cstrong\u003e   32 (kpa)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e                                             \u003c\/p\u003e\n\u003cp\u003eRPM Operating Range:                               \u003cstrong\u003e 1200-6000       \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdle Quality:                                                  \u003cstrong\u003e  Minimal change in idle quality from stock     \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChop Scale:                                                    \u003cstrong\u003e1\/10      \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eExpected Cam Swap Gains (P2P):              \u003cstrong\u003e 41+ Horsepower, 19+ lb\/ft, extra   \u003c\/strong\u003e      \u003c\/p\u003e\n\u003cp\u003eTorque Converter Characteristics:              \u003cstrong\u003eWorks well with factory converters!  \u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003e'Drivability':                                                    \u003cstrong\u003eStock Drivability with added Torque Everywhere      \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e                                             \u003c\/p\u003e","brand":"Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":68385803698375,"sku":"BTR-LSTRUCKSTG1-V3.GARAGE06B3","price":380.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/3358\/files\/btrlstruckstg1v3a_3456a144-3562-44ae-ac51-1aa7704ddb42.jpg?v=1794582309","url":"https:\/\/www.amsracing.net\/products\/brian-tooley-racing-stage-1-v3-gen-iii-iv-ls-truck-camshaft-3-bolt","provider":"AMS RACING","version":"1.0","type":"link"}