{"product_id":"btr-gen-iii-iv-ls-truck-cam-stage-4-v3-btr-lstruckstg4-v3-btr-lstruckstg4-v3","title":"BTR GEN III \u0026 IV LS TRUCK CAM - STAGE 4 - V3 - BTR-LSTRUCKSTG4-V3","description":"\u003ch3 style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(35, 111, 161);\"\u003eBTR GEN III \u0026amp; IV LS TRUCK CAM - STAGE 4 - V3 - BTR-LSTRUCKSTG4-V3\u003c\/span\u003e\u003c\/h3\u003e \u003ch3 style=\"text-align: center;\"\u003eSpecs: 219\/23X, .553\"\/.553\", 108.5 LSA\u003c\/h3\u003e \u003ch3 style=\"text-align: center;\"\u003eINTAKE LOBE LIFT @ TDC: 0.0614”\u003c\/h3\u003e \u003cp style=\"text-align: center;\"\u003e   \u003cspan style=\"color: rgb(186, 55, 42);\"\u003e\u003cstrong\u003e     * NOTICE - Stage 3 \u0026amp; 4 V3 Truck cams REQUIRE BTR-SK018 spring kit (or similar) AND one-piece chromoly pushrods!    \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e \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, with Stage 4 giving you maximum top-end power!\u003c\/p\u003e \u003cp\u003eThese cams use advanced valvetrain simulation and dynamic modeling tools, with \u003ca tabindex=\"0\" href=\"https:\/\/youtu.be\/7O0KiQlU3OM\" target=\"_blank\" rel=\"noopener\"\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 \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 \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 tabindex=\"0\" href=\"https:\/\/youtu.be\/-bJKq19W5S8\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(35, 111, 161);\"\u003ePlus, you're getting a 100% USA-designed \u0026amp; made product!\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eBTR SKU:                                                   \u003cstrong\u003eBTR-LSTRUCKSTG4-V3               \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eCamshaft Description:                           \u003cstrong\u003eBTR LS TRUCK V3 STAGE 4       \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eEngine Family:                                     \u003cstrong\u003e    GEN III \u0026amp; IV LS Applications  \u003c\/strong\u003e  \u003c\/p\u003e \u003cp\u003eRecommended Engine Size:                \u003cstrong\u003e  4.8-6.2L \u003c\/strong\u003e             \u003c\/p\u003e \u003cp\u003eRecommended Valve Springs:           \u003cstrong\u003e   BTR-SK018\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eRecommended Lifters\/Lifter Trays:     \u003cstrong\u003e(LS7 Lifters) X12499225, (Trays) BTR95365-4      \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eSuggested Pushrod Length:                 \u003cstrong\u003e 7.400\"  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eINTAKE DURATION @.050\":                 \u003cstrong\u003e 219°      \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eEXHAUST DURATION @.050\":           \u003cstrong\u003e   23X°      \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eLOBE LIFT INTAKE:                                 \u003cstrong\u003e0.325\"  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eLOBE LIFT EXHAUST:                            \u003cstrong\u003e 0.325\"  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eINTAKE LOBE LIFT @ T.D.C.:             \u003cstrong\u003e     0.0614\"  \u003c\/strong\u003e            \u003c\/p\u003e \u003cp\u003eROCKER ARM RATIO:                           \u003cstrong\u003e  1.7:1 \u003c\/strong\u003e    \u003c\/p\u003e \u003cp\u003eNET LIFT INTAKE:                                  \u003cstrong\u003e  0.553\"  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e NET LIFT EXHAUST:                              \u003cstrong\u003e 0.553\" \u003c\/strong\u003e \u003c\/p\u003e \u003cp\u003eLOBE SEPARATION ANGLE:                \u003cstrong\u003e  108.5°    \u003c\/strong\u003e  \u003c\/p\u003e \u003cp\u003eEXPECTED IDLE VAC 750RPM:             \u003cstrong\u003e56 (kpa)   \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eRPM Operating Range:                      \u003cstrong\u003e   2200-6700    \u003c\/strong\u003e     \u003c\/p\u003e \u003cp\u003eIdle Quality:                                           \u003cstrong\u003e Very Aggressive  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eChop Scale:                                            \u003cstrong\u003e8\/10  \u003c\/strong\u003e    \u003c\/p\u003e \u003cp\u003eExpected Cam Swap Gains (P2P):      \u003cstrong\u003e72+ Horsepower, 24+ lb\/ft, an extra 1000+rpm!  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eTorque Converter Characteristics:     \u003cstrong\u003eWe recommend the use of an aftermarket converter for best performance.      \u003c\/strong\u003e       \u003c\/p\u003e \u003cp\u003e'Drivability':                                            \u003cstrong\u003eGreat for shenanigans, lighter trucks that primarily cruise and play instead of work.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e                                 \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eDYNO TESTING CONFIGURATION:                                    \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eDyno data collected with stock GEN IV 5.3L short block with stock 243 heads, BTR98544 head gaskets, TBSS Intake, Silverado Headers, and Speed Engineering NNBS Y-Pipe, and full-length 3.5” Single Exhaust with Muffler. \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e  \u003c\/p\u003e \u003cp\u003e\u003cimg style=\"width: 900px; height: 408px;\" src=\"https:\/\/briantooleyracing.com\/media\/wysiwyg\/53DynoRoom_CamSwap.jpg\" alt=\"\" width=\"900\" height=\"408\"\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cbr\u003e\u003cstrong\u003e  COMPARING CAMS:        \u003cspan style=\"color: rgb(35, 111, 161);\"\u003eBTR Stage 4 V3 Truck Cam\u003c\/span\u003e to \u003cspan style=\"color: rgb(186, 55, 42);\"\u003eOEM 5.3 Truck Cam\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cimg style=\"width: 900px; height: 449px;\" src=\"https:\/\/briantooleyracing.com\/media\/wysiwyg\/BTR-LSTRUCKSTG4-V3_vs_OE_Plot.png\" alt=\"\" width=\"900\" height=\"439\"\u003e\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePEAK TO PEAK GAINS:             BTR-LSTRUCKSTG4-V3 TO OE 5.3L CAM  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eHORSEPOWER GAIN PEAK-PEAK (HP):                 72.2(HP)\u003c\/p\u003e \u003cp\u003eHORSEPOWER % GAIN PEAK-PEAK:                      19.4%   \u003c\/p\u003e \u003cp\u003eTORQUE GAIN PEAK-PEAK(lb\/ft):                           23.8(lb\/ft)\u003c\/p\u003e \u003cp\u003eTORQUE % GAIN PEAK-PEAK:                                 6.0%     \u003c\/p\u003e \u003cp\u003e\u003cbr\u003e\u003cstrong\u003eAVERAGE GAINS:             BTR-LSTRUCKSTG4-V3 TO OE 5.3L CAM\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eAVG HORSEPOWER GAIN (HP):                            28.6(HP)\u003c\/p\u003e \u003cp\u003eAVG HORSEPOWER % GAIN:                                9.7%     \u003c\/p\u003e \u003cp\u003eAVG TORQUE GAIN (lb\/ft):                                    26(lb\/ft)\u003c\/p\u003e \u003cp\u003eAVG TORQUE % GAIN:                                           7.2%     \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRPM RANGE FOR AVERAGE:                               2200-6500RPM     \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e                                             \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e   COMPARING CAMS:        \u003cspan style=\"color: rgb(35, 111, 161);\"\u003eBTR Stage 4 V3 Truck Cam\u003c\/span\u003e TO \u003cspan style=\"color: rgb(186, 55, 42);\"\u003eBTR Stage 4 V2 Truck Cam   \u003c\/span\u003e  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cimg style=\"width: 900px; height: 455px;\" src=\"https:\/\/briantooleyracing.com\/media\/wysiwyg\/BTR-LSTRUCKSTG4-V3_vs_V2_Plot.png\" alt=\"\" width=\"900\" height=\"455\"\u003e      \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePEAK TO PEAK GAINS:             BTR-LSTRUCKSTG4-V3 TO BTR-32430090          \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eHORSEPOWER GAIN PEAK-PEAK (HP):                4.7(HP)\u003c\/p\u003e \u003cp\u003eHORSEPOWER % GAIN PEAK-PEAK:                    1.1%     \u003c\/p\u003e \u003cp\u003eTORQUE GAIN PEAK-PEAK(lb\/ft):                         13.9(lb\/ft)\u003c\/p\u003e \u003cp\u003eTORQUE % GAIN PEAK-PEAK:                               3.4%     \u003c\/p\u003e \u003cp\u003e                                             \u003c\/p\u003e \u003cp\u003e         \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eAVERAGE GAINS:             BTR-LSTRUCKSTG4-V3 TO BTR-32430090      \u003c\/strong\u003e         \u003c\/p\u003e \u003cp\u003eAVG HORSEPOWER GAIN (HP):                            9.9(HP)\u003c\/p\u003e \u003cp\u003eAVG HORSEPOWER % GAIN:                                3.2%     \u003c\/p\u003e \u003cp\u003eAVG TORQUE GAIN (lb\/ft):                                    13.3(lb\/ft)\u003c\/p\u003e \u003cp\u003eAVG TORQUE % GAIN:                                           3.6%     \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRPM RANGE FOR AVERAGE:                               2200-6500RPM\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003ctable class=\"data table additional-attributes\" id=\"product-attribute-specs-table\"\u003e  \u003ctbody\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eEMS Code\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"EMS Code\"\u003eEMS: Code 3\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eBTR SKU\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"BTR SKU\"\u003eBTR-LSTRUCKSTG4-V3\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eLength\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Length\"\u003e24.000000\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eWidth\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Width\"\u003e3.000000\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eHeight\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Height\"\u003e3.000000\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eWeight\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Weight\"\u003e15.000000\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eBrand\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Brand\"\u003eBrian Tooley Racing\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003ePart Type\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Part Type\"\u003eCamshaft\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eEngine Type\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Engine Type\"\u003eGen III\/Gen IV LS\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eEngine Combination\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Engine Combination\"\u003eGM LS TRUCK\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eCamshaft Style\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Camshaft Style\"\u003eHYDRAULIC ROLLER\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cth class=\"col label\" scope=\"row\"\u003eCam Bolt Style\u003c\/th\u003e \u003ctd class=\"col data\" data-th=\"Cam Bolt Style\"\u003eTHREE BOLT\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e","brand":"BTR - Brian Tooley Racing","offers":[{"title":"Default Title","offer_id":62809096290463,"sku":"BTR-LSTRUCKSTG4-V3","price":409.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0424\/7571\/6767\/files\/btrlstruckstg4v3a.jpg?v=1780753555","url":"https:\/\/streetdrivenperformance.com\/products\/btr-gen-iii-iv-ls-truck-cam-stage-4-v3-btr-lstruckstg4-v3-btr-lstruckstg4-v3","provider":"Street Driven Performance","version":"1.0","type":"link"}