Precision Works Intake Manifold Adapter K2H – K-Series to H-SeriesPrecision Works Intake Manifold Adapter K2H K Series to H Series Upgrade your H Series engine with the flexibility of K Series performance parts using the Precision Works K2H Intake Manifold Adapter. This billet aluminum adapter allows you to mount K Series intake manifolds on H Series engines, giving you access to a wide range of aftermarket manifolds and performance upgrades. Key Features Allows K Series intake manifolds to fit H Series (H22)