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  #1  
Old 05-07-2010, 10:04 PM
spujia spujia is offline
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Unhappy Brass Freeze Plugs for the 430?

Hi All,

I've been rebuilding my 430 MEL in my 60 bird over the past year. I just got to the point of putting water in the motor and lo - one of the freeze plugs replaced by the machine shop in the block has a pin hole in it (passenger side, middle plug). Needless to say I'm ticked. I think they used the steel plugs, which I can find. Does anyone know where to get the brass replacements? I heard they are better.

Disgruntled,

Steve
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Last edited by YellowRose : 05-08-2010 at 12:23 AM.
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Old 05-08-2010, 12:40 AM
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Default Brass Freeze Plugs for the 430?

Hi Steve, I did a search on the Forum, trying to find a source for you, but did not find one yet. However, I did see where my ole buddy Bart said that when they rebuilt his 430, his mechanics said they ALWAYS put brass freeze plugs in. And simplyconnected, and others on here also swear by them. If I find a source, I will let you know, but if Dave or someone else comes on here, they should be able to tell you a source for them. Probably any auto parts store, but I do not know that for sure.
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Old 05-08-2010, 12:42 AM
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Thanks, I appreciate the help YR
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Old 05-08-2010, 12:56 AM
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Hey Steve,
Every marine engine uses brass freeze plugs (but they charge an arm and a leg). Brass freeze plugs are ALL OVER California and every Speed shop across the USA. Call a local speed shop. They probably have them on the shelf.

I think your engine takes (6) 1-1/2" freeze plugs. Some places like to sell them in a set for about ten bucks.

I use an engine rebuilder's company (ERSCO) here in Michigan. Call this number (1-800) 253-0401. If I'm right about your size, ask them for part #SP-198. If your plugs are a different size, these people are VERY accommodating. Let them know what size you need. Then ask how much, and how soon you can get them shipped. Let me know how it went. - Dave Dare
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Old 05-08-2010, 01:05 AM
spujia spujia is offline
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Thanks for the info, I'll definitely check it out on Monday and let you know.

Right now I'm in Maryland, going out west again this summer, and would like to have the car running enough to load onto a trailer by then... If I was in Cali now I would bypass the speed shop and have the guys who installed them up fix it at their expense , but thanks for the idea. I suppose they would say it was not their fault. Hard to know. All I know is that the engine never had water in it before now...

Thanks again for all of the help guys - you rock.
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Old 05-08-2010, 01:05 AM
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Default Brass Freeze Plugs for the 430?

There ya go, Steve! I figured Dave would have a source for them. I was looking for sources still when his post came in. Of the several articles I read in the last few minutes regarding replacing freeze plugs, EVERY ONE of them said to replace them with brass ones because they will not leak or rust...
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Old 05-08-2010, 01:29 AM
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Looks like you have the correct specs, simplyconnected. Found another cross-reference here:

http://www.rockauto.com/catalog/rafr...-567026-557095

Thanks again. Probably check your guy first - I like the down home feel.
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Old 05-08-2010, 01:31 AM
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PS - you have to drill through the part catalog tab on the left to get to the specs...
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Old 05-08-2010, 04:43 AM
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Steve, I know a leak is really a pain, and a newly rebuilt engine should have NEW freeze plugs, BUT... they're not difficult to get to, they're only ~$1.50/each, and they easily come out with a screwdriver and a hammer. Maybe your engine builder forgot to use a little sealer (but I don't know). I spread a thin coat of RTV in the hole and a little around the freeze plug before tapping them in with a small hammer. Give them 20-minutes to form a skin, then add coolant.
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...Thanks again for all of the help guys - you rock.
Yeah, sometimes we use LARGE ROCKS.
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Old 05-08-2010, 04:53 AM
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Yea, I'm gonna give it a try; thanks for the tips. I got the exhaust manifold off easily (being as I had just put it on), although I had put it on the head first to make my life easier when I installed it. I heard the Indian Head stuff works good for sealant. Re the plug, The sad thing is, the pin hole is right in the middle of it - go figure. They looked replaced when I got the block back. Perhaps it was defective...
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