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#91081612

BlockDock™ LS Gen III/IV Exhaust Block-Off Plate Kit

• Manufactured from .160-inch 5052-H32 aluminum sheet and precision laser cut to perfectly seal LS exhaust ports
• Fits Gen 3 and Gen 4 LS factory and aftermarket cylinder heads exhaust port shape and manifold/header bolt pattern
• Perfect for sealing backup race engines, crate engines, and other LS engines with intake and water pump already installed