Edelbrock 75763 RPM Air-Gap Intake Manifold for Small Block Chrysler BlackRPM Air Gap Small Block Chrysler Black Intake Manifold Edelbrock part #75763 RPM Air Gap intake manifold is designed for 340 360 c. i. d. Chrysler V8's and 318 c. i. d. engines with 340 360 cylinder heads. The RPM Air Gap incorporates the same race winning technology that's been used on our Victor Series competition intakes for years. The Air Gap design features an open air space that separates the runners from the hot engine oil resulting in a