BTR Gen V L8T Cam Kit for GM 6.6L L8T gasoline engine builds and compatible swaps. Not for 6.6L Duramax diesel engines or Gen III/IV LS engines.
Included: One selected BTR camshaft and the selected BTR spring package. Separate BTR hat seals are included only with the beehive + seals choice. Optional BTR pushrods (set of 16) and Gen V Plus VVT limiter are included only when selected. Lifters, gaskets, installation tools, lubricant and other hardware are sold separately.
Cam choices: L8T Torque, Gen V 220, Gen V 225 and Gen V 230. Beehive combinations are offered only with L8T Torque. BTR's spring selector requires SK007 or SK013 for the 220/225/230 cams and also offers higher-lift SK707 kits; an SK707 choice still requires verifying the complete rocker, guide and spring setup for the actual build.
Spring packages: BTR91120-16 .550-inch-lift beehive springs with or without separate hat seals; SK013-family .650-inch conical kits; SK007-family .660-inch dual kits; and SK707-family .685-inch dual kits. SK007 and SK707 options include titanium retainers. Select the exact stock/bronze guide, locator and valve-tip-saver version listed. Do not add separate beehive hat seals to these complete conical/dual kits. The SK707/6560/BB bronze-guide kit has limited stock-rocker applicability; verify rocker clearance, installed height and spring setup rather than assuming stock compatibility.
Pushrods and limiter: Optional BTR 3/8-inch-diameter, .080-inch-wall chromoly pushrods are a set of 16 in 7.800, 7.825 or 7.850-inch length. Measure the assembled engine before choosing. The offered limiter is BTR-VVT-GEN-VP-4CAM, Gen V Plus 4 degrees; match the actual phaser and cam requirements. BTR listed this limiter on backorder September 23, 2026; availability can change.
Fitment: GM Gen V 6.6L L8T gasoline applications only, subject to actual cylinder heads, guides, rockers, fuel system, phaser, clearances and calibration. Engine swaps must be matched to the installed engine and supporting hardware, not the vehicle badge. This cam/spring package is not a complete engine-conversion or installation kit.
Inventory and shipping: Manual BTR listing, inventory tracking off and continue-selling enabled. Provisional carton is 26 × 12 × 8 inches with 1 lb separate tare. Contents/packing allowance: 20 lb for conical kits or 24 lb for beehive/dual kits, plus 3 lb with pushrods, .5 lb with separate seals and .5 lb with limiter. These are conservative estimates, not measured manufacturer shipping specifications.
Optional BTR installation tool: BTR-T001 pneumatic valve-holding tool, sold separately. Third-party Chevrolet pushrods, Gwatney/Cam Motion phaser tools and Driven lubricant are not included in this BTR-only listing.
Native vehicle-search applications: 2020–2026 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD equipped with the 6.6L L8T gasoline engine. Not the 6.6L Duramax diesel, factory half-ton trucks or factory Tahoe/Yukon engines. Swapped vehicles and other L8T applications require verification of the installed engine and supporting valvetrain. These vehicle entries do not make every spring/rocker configuration interchangeable.
