Description
TSP Billet Valley Cover with Gasket Kit
The TSP Billet Valley Cover Kit is designed for high-horsepower LS applications, especially turbocharged combinations that create excessive crankcase pressure. This system improves crankcase ventilation, reduces oil vapor contamination, and helps prevent front and rear main seal blowout.
This product allows you to choose between a Gen 3 LS or Gen 4 LS valley cover and gasket kit configuration.
Key Features
- Vents excessive positive crankcase pressure
- Provision for 1/8” NPT crankcase pressure sensor (RIFE style)
- Dual -12 ORB ports (adapters included)
- Built-in baffle system to reduce oil carryover
- Molded O-ring with dovetail groove for easy installation
- Compatible with OEM oil pressure sensor
Fitment
- Gen 3 or Gen 4 LS engines (based on selection)
- Works with blocked-off rear steam ports
Does not fit most 4-corner steam port kits, OEM plastic intake manifolds, low-style FAST intake manifolds, or PDS superchargers.
This assembly is built to order. Choose your crankshaft, connecting rods and pistons above — the price updates as you select.










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