Brian Tooley BTR Stage 4 V3 Truck Cam Kit 219/23X .553/.553 108.5 LSA + Trunnion Kit + PAC1219 Springs + Valve Seals – Fits 4.8L 5.3L 6.0L 6.2L LM7 LR4 L59 LQ4 LQ9 L76 – +72HP

Description

The Brian Tooley Racing BTR Stage 4 V3 is the most aggressive option in BTR’s revamped LS truck cam lineup — delivering dyno-proven gains of 72+ horsepower, 24+ lb-ft of torque, and an extra 1,000+ RPM of usable power over stock on a stock Gen IV 5.3L with stock heads. Featuring 219/23X duration at .050″, .553″/.553″ valve lift, 108.5 LSA, and a broad 2,200–6,700 RPM operating range, the Stage 4 V3 sits at an 8 out of 10 on the chop scale — delivering a very aggressive lopey idle that announces this LS truck means serious business. This complete kit includes everything a professional installer would spec — BTR Stage 4 V3 camshaft, Redline PAC1219-style .625″ beehive valve springs, premium valve stem seals, front timing cover gasket set, and a premium LS rocker arm trunnion upgrade kit. No piecing parts together from multiple sellers. Lifetime warranty if installed by a certified machinist.

The Redline PAC1219-style .625″ beehive springs are purpose-matched to the Stage 4 V3’s .553″/.553″ lift profile — delivering a max lift of .625″, spring rate of 340 lbs/in, coil bind at 1.100″, installed height of 1.800″ at 135 lbs, and open load of 348 lbs at 1.175″ for correct spring pressure and reliable high-RPM operation across all 4.8L, 5.3L, 6.0L, and 6.2L LS engine families. The premium LS rocker arm trunnion upgrade kit converts your stock LS rocker arms into captured roller bearing rocker arms — eliminating the factory failure point that has caused catastrophic engine damage in countless LS builds. This is the cam for trucks that play harder than they work — 72+ horsepower gains, a very aggressive lopey idle, and a broad 2,200–6,700 RPM powerband that separates serious LS performance builds from everything else on the street and at the track. Brian Tooley Racing camshafts are designed and engineered in the USA — backed by extensive in-house dyno development and real world engine testing.

Compatible with 1999–2013 GM Gen III/IV LS-based 4.8L, 5.3L, 6.0L, and 6.2L Vortec V8 engines. Fits Silverado, Sierra, Tahoe, Suburban, Yukon, Yukon XL, Escalade, and Avalanche. A 3,200+ RPM stall converter is recommended for 4.8L and 5.3L applications — 6.0L and 6.2L engines can work with a 2,800+ stall. Fire it up and the BTR Stage 4 V3 announces itself with a very aggressive lopey idle that turns heads everywhere you drive — and a relentless powerband that keeps building all the way to 6,700 RPM. Big power. Broad powerband. Built for the street.

• COMPLETE BTR STAGE 4 V3 LS TRUCK CAM KIT – Brian Tooley Racing BTR Stage 4 V3 LS Truck Camshaft (219/23X, .553″/.553″, 108.5 LSA, 3-Bolt), Redline PAC1219-Style .625″ Beehive Valve Springs, Premium Valve Stem Seals, Front Timing Cover Gasket Set, and a Premium LS Rocker Arm Trunnion Upgrade Kit. Lifetime warranty if installed by a certified machinist. Most complete BTR Stage 4 V3 cam kit for 4.8L 5.3L 6.0L and 6.2L LS truck cam swaps — no piecing parts together from multiple sellers.
• +72HP +24TQ +1000 USABLE RPM – MOST AGGRESSIVE BTR LS TRUCK CAM – 219/23X Duration at .050″, .553″/.553″ Valve Lift, 108.5 LSA, 3-Bolt Pattern, 2,200–6,700 RPM Operating Range. Chop scale 8 out of 10 — very aggressive idle. Dyno-proven gains of 72+ horsepower, 24+ lb-ft of torque, and an extra 1,000+ RPM of usable power over stock on a stock Gen IV 5.3L with stock heads. This is the cam for 4.8L 5.3L 6.0L and 6.2L trucks that play harder than they work.
• VERY AGGRESSIVE LOPEY IDLE – POWERBAND THAT PULLS TO 6,700 RPM – The BTR Stage 4 V3 sits at an 8 out of 10 on the chop scale — delivering a very aggressive lopey idle that announces this LS truck means serious business from the moment you turn the key. Past converter stall the power builds hard through the midrange and keeps climbing relentlessly all the way to 6,700 RPM. A 3,200+ RPM stall is recommended for 4.8L and 5.3L — 6.0L and 6.2L engines can work with a 2,800+ stall.
• PREMIUM LS ROCKER ARM TRUNNION UPGRADE KIT – DO NOT SKIP THIS ON YOUR LS BUILD – The factory LS rocker arm trunnion is a known failure point across the entire LS engine family. When the factory pressed-in needle bearings fail they send small bearings through the entire engine causing catastrophic damage to your 4.8L 5.3L 6.0L or 6.2L LS build. This retrofit trunnion kit converts stock LS rocker arms into captured roller bearing rocker arms — eliminating the factory failure point entirely. Trusted in everything from stock 4.8L daily drivers to 1,000+ horsepower turbo motors.
• HIGH PERFORMANCE PAC1219 .625″ BEEHIVE SPRINGS – Max Lift .625″ | Spring Rate 340 lbs/in | Coil Bind 1.100″ | Installed Height 1.800″ at 135 lbs | Open Load 348 lbs at 1.175″. Purpose-matched to the BTR Stage 4 V3’s .553″/.553″ lift profile for correct spring pressure and reliable high-RPM operation across all 4.8L 5.3L 6.0L and 6.2L LS engine families. The go-to spring upgrade for every serious BTR Stage 4 V3 LS truck cam swap build.