The Racing Beat-modified Peripheral Port Housing for the 1974-1985 13B Non-Turbo engines begins as a stock housing We the bore and tap the housing, screw in and epoxy a threaded O-ringed tube, port the intake, and race port the exhaust. The connection from the intake manifold to the housing is made with heavy duty hose and hose clamps (supplied with the Racing Beat peripheral intake manifolds).
While the Water Jacket Modification is not included with any of these housings, it is highly recommended. (See Engine-Services)
Note: When using peripheral intake rotor housings, be sure to either select a rear housing in which the intake area tension bolt position is unmachined (most 1976 and later housings) or plug the hole. If left open, the hole can seep water out of the engine.