BTR Gen III & IV LS Truck Cam – Stage 4 – V3 – BTR-LSTRUCKSTG4-V3
Specs: 219/23X, .553"/.553", 108.5° LSA
Intake Lobe Lift @ TDC: 0.0614”
⚠️ Notice: Stage 3 & 4 V3 Truck Cams require the BTR-SK018 spring kit (or similar) and one-piece chromoly pushrods.
Overview
The BTR V3 Truck Camshaft Series is the most advanced and extensively tested line of truck cams BTR has ever released.
The Stage 4 V3 cam takes everything learned from the Stage 1–3 profiles and pushes it to the limit — delivering maximum top-end power while still maintaining a solid torque curve for lighter trucks and weekend performance builds.
Developed with advanced valvetrain simulation, dynamic modeling, and Spintron testing across cathedral- and square-port heads, this cam ensures exceptional valvetrain stability and reliability even at higher RPM.
Each camshaft undergoes rigorous engine and chassis dyno validation with OEM-style intakes and full-length exhaust systems. Real-time in-cylinder pressure analysis fine-tunes overlap, scavenging, and wave dynamics for unmatched torque, efficiency, and horsepower throughout the range.
Like the rest of the V3 series, the Stage 4 is a clean-sheet motorsport-engineered design — not a recycled lobe profile. It brings true race-level analytical precision to the street, proudly designed and manufactured in the USA.
Specifications
BTR SKU: BTR-LSTRUCKSTG4-V3
Camshaft Description: BTR LS Truck V3 Stage 4
Engine Family: Gen III & IV LS Applications
Recommended Engine Size: 4.8 – 6.2 L
Recommended Valve Springs: BTR-SK018 (required)
Recommended Lifters & Trays: (LS7 Lifters) X12499225 | (Trays) BTR95365-4
Suggested Pushrod Length: 7.400”
Camshaft Data
| Specification | Value |
|---|---|
| Intake Duration @ .050" | 219° |
| Exhaust Duration @ .050" | 23X° |
| Lobe Lift (Intake / Exhaust) | 0.325" / 0.325" |
| Intake Lift @ TDC | 0.0614" |
| Rocker Arm Ratio | 1.7 : 1 |
| Net Lift (Intake / Exhaust) | 0.553" / 0.553" |
| Lobe Separation Angle | 108.5° |
| Idle Vacuum @ 750 RPM | 56 kPa |
| RPM Operating Range | 2200 – 6700 |
| Idle Quality | Very aggressive |
| Chop Scale | 8 / 10 |
| Expected Cam Swap Gains (P2P) | +72 HP / +24 lb-ft / +1000 RPM extension |
| Torque Converter Compatibility | Aftermarket converter recommended for best performance |
| Drivability | Ideal for light trucks that cruise and play more than tow — great for spirited driving and weekend fun |
Dyno Testing Configuration
Dyno testing performed with a stock Gen IV 5.3 L short block, stock 243 heads, BTR98544 head gaskets, TBSS intake, Silverado headers, Speed Engineering NNBS Y-pipe, and a full-length 3.5” single exhaust with muffler.
Comparing Cams
BTR Stage 4 V3 Truck Cam vs OEM 5.3 L Truck Cam
| Metric | Gain | % Gain |
|---|---|---|
| Horsepower (Peak-to-Peak) | +72.2 HP | +19.4 % |
| Torque (Peak-to-Peak) | +23.8 lb-ft | +6.0 % |
| Average Horsepower | +28.6 HP | +9.7 % |
| Average Torque | +26.0 lb-ft | +7.2 % |
| RPM Range (Average) | 2200 – 6500 RPM |
BTR Stage 4 V3 Truck Cam vs BTR Stage 4 V2 Truck Cam (BTR-32430090)
| Metric | Gain | % Gain |
|---|---|---|
| Horsepower (Peak-to-Peak) | +4.7 HP | +1.1 % |
| Torque (Peak-to-Peak) | +13.9 lb-ft | +3.4 % |
| Average Horsepower | +9.9 HP | +3.2 % |
| Average Torque | +13.3 lb-ft | +3.6 % |
| RPM Range (Average) | 2200 – 6500 RPM |
