LS Transmission Cooler Line Kit for 6L80E and 10L90E Swaps
Swapping a 6L80E and 10L90E into your LS platform often exposes stock cooler lines to tight bends and engine heat that drive fluid temps upward and can compromise system pressure. This cooler line kit places a billet aluminum manifold at the tail housing and pairs it with stainless steel braided hoses routed away from exhaust headers and frame rails. Each fitting is CNC machined to match GM port locations allowing installation without case modifications. By keeping fluid paths clear and secure this kit helps maintain consistent cooling under spirited shifts or track use.
Precision Machined Billet Manifold for Enhanced Flow
The billet aluminum manifold is shaped by multi axis CNC machining to mirror GM port locations and eliminate any need for transmission housing modifications. This precise contouring reduces internal turbulence, guiding fluid smoothly through the cooling loop and maintaining even pressure along the entire path. By matching the 6L80E and 10L90E tail housing exactly, installers avoid guesswork and potential misalignment that can lead to leaks or flow restriction. The internal passage geometry also helps prevent hotspots by distributing fluid evenly, which supports consistent temperature control during heavy throttle shifts. As a result, transmission components run cooler and last longer under repeated load cycles.
Stainless Steel Braided Hose for Abrasion Resistance
Each hose uses a smooth PTFE core wrapped in a densely woven stainless steel braid that stands up to repeated thermal cycling and exposure to harmful fluids. A protective black cover shields the braid from contact with exhaust headers and sharp frame edges, preventing wear that could compromise hose integrity. The combination of chemical resistance and radiant heat tolerance ensures that hoses hold their shape and internal diameter even when they run close to engine hot spots. This rugged construction maintains steady flow under pressure and guards against external damage in tight engine compartments. It also contributes to quieter operation by dampening vibration and noise often associated with direct metal routing.
CNC Fittings Ensuring Leak Proof Connections
All fittings are produced on precision machining centers to exact thread form and sealing surface tolerances, providing a reliable seal that holds full circuit pressure without seepage. This high level of accuracy prevents small gaps that can allow fluid leaks under load or high temperature. Secure fitting engagement also resists loosening from vibration and the expansion and contraction cycles common in heavy use. With these leak proof connections in place, maintenance intervals can be extended and users spend less time checking for drips or fluid loss. Consistent sealing supports proper clutch pack pressure and protects transmission internals from damage due to fluid starvation.
Optimized Hose Routing for Temperature Control
The kit's hose lengths and angles are preconfigured to keep lines clear of exhaust manifolds, frame rails, and other heat sources. By avoiding tight bends and hot surfaces, fluid path resistance is minimized and transmission fluid stays cooler under extended runs or spirited street drives. Proper clearance also means hoses will not rub against chassis components, eliminating abrasion that leads to failures over time. This strategic layout helps prevent overheating during demanding driving sessions, preserving fluid integrity and reducing thermal stress on seals and bearings. Overall, the routing design contributes directly to smoother shift performance and longer service life for swapped LS transmissions.
Engineered to maintain reliable cooling under sustained use, this kit helps preserve transmission integrity in your LS swap.