{"product_id":"btr-gen-iii-iv-ls-truck-cam-stage-2-v3-btr-lstruckstg2-v3-btr-lstruckstg2-v3","title":"BTR GEN III \u0026 IV LS TRUCK CAM - STAGE 2 - V3 - BTR-LSTRUCKSTG2-V3","description":"\u003ch3 style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(35, 111, 161);\"\u003eBTR GEN III \u0026amp; IV LS TRUCK CAM - STAGE 2 - V3 - BTR-LSTRUCKSTG2-V3\u003c\/span\u003e\u003c\/h3\u003e \u003ch3 style=\"text-align: center;\"\u003eSpecs: 208\/21X, .549\"\/.549\", 108.5 LSA\u003c\/h3\u003e \u003ch3 style=\"text-align: center;\"\u003eINTAKE LOBE LIFT @ TDC: 0.0444”\u003c\/h3\u003e \u003cp\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 \u0026amp; enhanced towing capability. \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\u003cspan style=\"color: rgb(35, 111, 161);\"\u003e\u003cstrong\u003ePlus, you're getting a 100% USA-designed \u0026amp; made product!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eBTR SKU:                                              \u003cstrong\u003e     BTR-LSTRUCKSTG2-V3               \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eCamshaft Description:                         \u003cstrong\u003e   BTR LS TRUCK V3 STAGE 2   \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\u003eBTR-SK018, SP011-16* \u003c\/strong\u003e\u003c\/p\u003e \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 \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\u003e208° \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eEXHAUST DURATION @.050\":              \u003cstrong\u003e 21X°  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eLOBE LIFT INTAKE:                                 \u003cstrong\u003e 0.323\"\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eLOBE LIFT EXHAUST:                    \u003cstrong\u003e          0.323\"\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eINTAKE LOBE LIFT @ T.D.C.:                   \u003cstrong\u003e0.0444\"     \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 0.549\"  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eNET LIFT EXHAUST:                              \u003cstrong\u003e  0.549\"  \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\u003e42 (kpa)      \u003c\/strong\u003e  \u003c\/p\u003e \u003cp\u003e                                    \u003c\/p\u003e \u003cp\u003eRPM Operating Range:                                    \u003cstrong\u003e1300-6250     \u003c\/strong\u003e    \u003c\/p\u003e \u003cp\u003eIdle Quality:                                                       \u003cstrong\u003e Nice Mild Cam Sound, enough to tell it’s NOT Stock     \u003c\/strong\u003e     \u003c\/p\u003e \u003cp\u003eChop Scale:                                                        \u003cstrong\u003e 4\/10      \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eExpected Cam Swap Gains (P2P):                  \u003cstrong\u003e 53HP 16FTLBS \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eTorque Converter Characteristics:                \u003cstrong\u003e Works With OE Torque Converters   \u003c\/strong\u003e   \u003c\/p\u003e \u003cp\u003e'Drivability':                                                        \u003cstrong\u003eMild, Daily Driver Ready         \u003c\/strong\u003e  \u003c\/p\u003e \u003cp\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 2 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: 438px;\" src=\"https:\/\/briantooleyracing.com\/media\/wysiwyg\/BTR-LSTRUCKSTG2-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-LSTRUCKSTG2-V3 TO OE 5.3L CAM    \u003c\/strong\u003e       \u003c\/p\u003e \u003cp\u003eHORSEPOWER GAIN PEAK-PEAK (HP):                       52.5(HP)\u003c\/p\u003e \u003cp\u003eHORSEPOWER % GAIN PEAK-PEAK:                            14.0%   \u003c\/p\u003e \u003cp\u003eTORQUE GAIN PEAK-PEAK(lb\/ft):                                 24.4(lb\/ft)\u003c\/p\u003e \u003cp\u003eTORQUE % GAIN PEAK-PEAK:                                       6.2%     \u003c\/p\u003e \u003cp\u003e\u003cbr\u003e\u003cstrong\u003eAVERAGE GAINS:             BTR-LSTRUCKSTG2-V3 TO OE 5.3L CAM  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eAVG HORSEPOWER GAIN (HP):                            11.8(HP)\u003c\/p\u003e \u003cp\u003eAVG HORSEPOWER % GAIN:                                4.8%     \u003c\/p\u003e \u003cp\u003eAVG TORQUE GAIN (lb\/ft):                                    16.0(lb\/ft)\u003c\/p\u003e \u003cp\u003eAVG TORQUE % GAIN:                                           4.3%     \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRPM RANGE FOR AVERAGE:                               1900-5000RPM    \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e  \u003cstrong\u003eCOMPARING CAMS:        \u003cspan style=\"color: rgb(35, 111, 161);\"\u003eBTR Stage 2 V3 Truck Cam\u003c\/span\u003e TO \u003cspan style=\"color: rgb(186, 55, 42);\"\u003eBTR Stage 2 V2 Truck Cam   \u003c\/span\u003e  \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cimg style=\"width: 900px; height: 438px;\" src=\"https:\/\/briantooleyracing.com\/media\/wysiwyg\/BTR-LSTRUCKSTG2-V3_vs_V2_Plot.png\" alt=\"\" width=\"900\" height=\"438\"\u003e      \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePEAK TO PEAK GAINS:             BTR-LSTRUCKSTG2-V3 TO BTR-31218110   \u003c\/strong\u003e            \u003c\/p\u003e \u003cp\u003eHORSEPOWER GAIN PEAK-PEAK (HP):                       0(HP)\u003c\/p\u003e \u003cp\u003eHORSEPOWER % GAIN PEAK-PEAK:                            0%   \u003c\/p\u003e \u003cp\u003eTORQUE GAIN PEAK-PEAK(lb\/ft):                                 8.8(lb\/ft)\u003c\/p\u003e \u003cp\u003eTORQUE % GAIN PEAK-PEAK:                                        2.1% \u003c\/p\u003e \u003cp\u003e\u003cbr\u003e\u003cstrong\u003eAVERAGE GAINS:             BTR-LSTRUCKSTG2-V3 TO BTR-31218110    \u003c\/strong\u003e           \u003c\/p\u003e \u003cp\u003eAVG HORSEPOWER GAIN (HP):                            7.7(HP)\u003c\/p\u003e \u003cp\u003eAVG HORSEPOWER % GAIN:                                3.1%     \u003c\/p\u003e \u003cp\u003eAVG TORQUE GAIN (lb\/ft):                                    12.0(lb\/ft)\u003c\/p\u003e \u003cp\u003eAVG TORQUE % GAIN:                                           3.2%\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRPM RANGE FOR AVERAGE:        1900-5000RPM   \u003c\/strong\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-LSTRUCKSTG2-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":62809096355999,"sku":"BTR-LSTRUCKSTG2-V3","price":409.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0424\/7571\/6767\/files\/btrlstruckstg2v3a.jpg?v=1780753561","url":"https:\/\/streetdrivenperformance.com\/products\/btr-gen-iii-iv-ls-truck-cam-stage-2-v3-btr-lstruckstg2-v3-btr-lstruckstg2-v3","provider":"Street Driven Performance","version":"1.0","type":"link"}