Enter Product Name, Part Number, Key Word or Phrase
Intake Manifolds- Features
Intake Manifolds- Features
Features of our Intake Manifolds line.
Ford Manifold includes rear water crossover passage.
All ports very accurately positioned due to advanced casting techniques.
Just before packing, every tapped hole in each manifold is chased with a tap to clear our polishing residue and assure the threads are not damaged.
All polished manifolds are meticulously hand polished to show all levels
Dual Distributor Holddowns
Sometimes the standard single distributor holddown is difficult to access. So we have provided dual distributor holddowns on all Chevy intake manifolds, which gives you an optional position. And on our 52030 and 52031 Racing Manifold, you can use two holddowns for extra protection against distributor rotation.
Carburetor Adapter Plate
Many Chevy manifolds accept the stock Rochester Quadra-Jet spread-bore carb. But if you want to use one of the popular Holley or Edelbrock square bore carbs, you have to spend more bucks for a carb adapter plate. Our manifolds with spread- bore patterns include steel adapter plates and gaskets to accept square bore carbs. Included with manifold.
Nitrous Bosses
If you want to run nitrous with the injectors mounted directly in the ports, our manifolds provide a simple solution. Many of our manifolds include cast-in nitrous bosses which provide the extra thickness not found in most competitive manifolds without spending a lot more money. This extra thickness is necessary to provide the proper amount of thread engagement. All you have to do is drill and tap the bosses to accept any manufacturer's nitrous injectors.
Four Corner Water Ports
All of our performance manifolds feature two extra water ports at the rear of the manifold, a feature normally only found in manifolds costing hundreds more. Some enthusiasts have found that plumbing a line between these two rear ports can reduce engine overheating. Many racers also find these ports to be an advantageous special feature for plumbing special additional water lines.
Water Divider Baffle
The Professional Products #52030/52031 Manifold is designed for both racing and street applications. It has all the necessary bosses and tapped holes to accommodate street accessories yet it also includes every feature found in manifolds costing hundreds more. One trick feature is the Water Divider Baffle. Expensive race manifolds have this baffle cast in place in the manifold but this precludes the use of a thermostat if you want to use one. Our manifold is machined for a thermostat but the package also includes a drop-in Water Divider Baffle for those who desire this feature.
Special Manifold Adaptors
All Power+Plus Street and High Performance Street Manifolds for small block Chevys come with special adapters that allow these manifolds to fit the '87-'95 cast iron heads. If you have '86 or earlier heads, or '87-'95 aluminum heads, our manifolds bolt right on without the adapters. For '87-'95 cast iron heads, drop the adapters in the four slotted holes and bolt up the manifold with no fuss and no special tools required. We also now supply (4) straight bushings when used on non-angle style cylinder heads.
