Basic question about 460 heads

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May 23, 2005 | 12:55 AM

53wa2fl

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From: Floriduh

Basic question about 460 heads

Hello,
I need some help here. I have a 460 and on the back side of the heads, there is a hole.....This hole connects to the exhaust ports somehow. I know because when I welded up the exhaust, some of the smoke came out of that hole. SO.......My question is this, What is it for? and will it hurt if I plug it off? I assume it is for emmisions of some sort.

May 23, 2005 | 01:41 AM

Piffery1

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From: Niceville, FL.

The emissions air pump was connected there to provide air for combustion of unburned hydrocarbons (fuel) in the exhaust.
Piffery1

May 23, 2005 | 11:03 AM

monsterbaby

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From: iowa

if you don't have or want the AIR pump you can put a soft plug (small freeze plug) in the hole to plug it, or if it happens to be threaded you can swrew a bolt into it, and cut the head off will do the same thing.

May 23, 2005 | 11:35 AM

53wa2fl

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From: Floriduh

Thanks guys! I appreciate it....I'll have to put in some soft plugs....I just wish I had seen the holes before I put the motor in....It would have been so much easier
Oh well, I needed to pull it back out anyway...Day job. Guess I'll be busy next weekend.