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Old 06-11-2006, 10:58 AM
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square port in an oval hole

Hello: My Question I'm Bulding A 427 With Square Port Iron Eagle

Heads And I Have A Weber 4x48 Intake And Carbs The Problem Is It

Is An Oval Port Intake What Changes Or Machineing Would I Haft

Todo To Use This Intake With My Square Port Heads Thank You

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Old 06-11-2006, 11:13 AM
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adapter kits

Normally you can buy Carb adapter kits from summit, jegs, jc whitney and ect to fit your carb to your intake. But make sure you know which kind of bore that the carb is to what kind of bore the intake is.
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Old 06-11-2006, 11:47 AM
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Hello: Rookie The Problem Is'nt The Carbs But Intake Head Matchup

Any Ideas Thank You
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Old 06-11-2006, 12:03 PM
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As one old Big block runner to another. You can run an oval port head with a rect port intake. But, not the oval port intake on a rect port. Unless you could build up the flanges on the intake to cover up a big port (rect) gasket. Then resurface the area.
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Old 06-11-2006, 12:18 PM
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Port Matching

This is about how it goes to port match an intake to an engine..

Bolt the heads on with the headgaskets you intend to use..then plece the intake manifold gaskets exactly as you intend to have them on the finsihed engine..Coat them with machinists blue and set the intake into place..when you pull the intake back up you should have some marks so the gaskets can be accurately indexed to the mounting surface of the intake..then you can tell how much material needs to be removed in order to port match the intake to the heads..

One thing that you may run into is that there may not be enough material in the intake to allow a port match..In that sad and sorry event it is either a different manifold that was made to match your heads or welding the manifold to add material for the port match so that you can grind out the runners to match..

Once you have indexed the gaskets and checked the port match it may not be all that bad..It won't be known until you do that..Those intakes flow real well and there is a school of thought that having a turbulence in the runner is a good thing..

Sam
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Old 06-11-2006, 12:25 PM
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Help

Bob: I Put The Square Port Gasket On Everything Looks Good Through The Port And Water Jackets Look Good. Where Does
Additional Material Need Tobe Added
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Old 06-11-2006, 04:35 PM
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Usually along the top edge and upper corner of the intake manifold runners, where they meet the head. Tho yours may be plenty thick, as it is aftermkt. As long as you can seal it up, you have done about all that can be reasonably done in this situation.
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Old 06-12-2006, 05:12 PM
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BOB:
THANKS FOR THE INFO I CHECKED IT TODAY MY MANIFOLD WAS

THICK ENOUGH BUT I HAD TO REMOVE A LITTLE MATERIAL FROM

TOP OF BOLT HOLES TO ALLOW MANIFOLD TO GO DOWN FURTHER

AND IT WAS A GOOD FIT. THE MANIFOLD IS PRETTY SHORT SO

I'M ABLE TO LOOK RIGHT IN PORTS ALL I CAN SAY IS IT LOOKS

REALLY COOL. I WILL POST A PICTURE IF I CAN I'M KNEW TO

YOUR WEBSITE 4X48 WEBERS LOOK LIKE HILBORN FUEL INJECTION
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Old 06-12-2006, 07:12 PM
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The first thing I thought of when you mentioned the Webbers was an old Hilborn injection setup. I like the look!!
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