Holley 300-243 - Holley 351W Ford Hi-Ram Carbureted Manifold Base

The Hi-Ram manifold line has a new addition for the 351W Ford application. The runner length and tapered cross section design will perform well for a wide range of engine combinations. The engineering team also redesigned the water crossover passage to allow room for distributor phasing. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more!Manifold is designed for a 9.5" deck height.Manifold width is 11.32".• Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations• Cast aluminum construction.*** For carbureted applications you can use MSD PN 85787 Ford 351W Distributor with Steel Gear

*** For carbureted applications you can use MSD PN 85787 Ford 351W Distributor with Steel Gear*** The front and rear height measurements listed in the Specs section are referencing the overall height with the top plate installed. Please see the diagrams in the product images for other dimensions.***Warning- Many Ford vehicle models were originally equipped with a heater core flow restrictor located at either the original heater hose fitting in the factory intake or inline in the inlet heater hose which protects the heater core from damage. If you are replacing the hoses between the engine and heater core or changing the factory fitting check to see if your application requires a flow restrictor. Failure to use the proper flow restrictor will likely result in a damaged or leaking heater core.