The Ford Barn

Fatheads4ever · 11-23-2021, 07:16 PM

Hi All,
I'm curious about those exhaust cross over ports in the intake maniforld.
What would happen if i blanked them off?
Would the engine run hotter?
Would it effect the fuel mixture?
What if I simply blanked off only one port?
Any ideas would be appreciated.
Regards Kevin

Flathead · 11-23-2021, 07:29 PM

People have been plugging them off for decades. Engine won't run hotter, intake will run slightly cooler which is good unless you are in an extremely cold climate. Block both sides if you are going to do it.

petehoovie · 11-23-2021, 07:38 PM

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11-23-2021, 07:16 PM	#1
Fatheads4ever Member Join Date: May 2021 Location: Auckland New Zealand Posts: 59	V8 exhaust cross over ports Hi All, I'm curious about those exhaust cross over ports in the intake maniforld. What would happen if i blanked them off? Would the engine run hotter? Would it effect the fuel mixture? What if I simply blanked off only one port? Any ideas would be appreciated. Regards Kevin

11-23-2021, 07:29 PM	#2
Flathead Senior Member Join Date: May 2010 Location: Southern Maine Posts: 1,696	Re: V8 exhaust cross over ports People have been plugging them off for decades. Engine won't run hotter, intake will run slightly cooler which is good unless you are in an extremely cold climate. Block both sides if you are going to do it.

11-23-2021, 07:38 PM	#3
petehoovie Senior Member Join Date: May 2015 Posts: 11,643	Re: V8 exhaust cross over ports Sponsored Links (Register now to hide all advertisements) See these threads > https://www.fordbarn.com/forum/showt...blocking+penny and > https://www.fordbarn.com/forum/showt...blocking+penny __________________