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Post Info TOPIC: Engine block plugs ?


Poncho Master!

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Engine block plugs ?


Can I use threaded brass plugs on my engine block for coolant drain plugs and oil gallery plugs fastened with L key type plugs ?



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Guru

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What kind of motor are you working on?. Are you dealing with Pontiac 400/455

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AAK

Dorchester Ont



Poncho Master!

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Yes, my Pontiac 455, I also want to drill the little 3/16th hole in the back inside plug for distributor gear lubing ...



-- Edited by pontorquer on Thursday 2nd of June 2011 10:12:55 PM

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Guru

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I did a rebuild 2yrs ago 461 stroker and i used threaded plugs in the oil galleys behind the timing chain. I think they were 3/8 pipe so i bought the proper bit and tap. When i did this mod i was very carefull not to screw the plugs in to far because you can block the passage-way. The key is to measure carefully. When the plugs are secure you can then use a chissel and secure the plugs in place. I also used brass plugs in the lower block 1/8 i believe.

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AAK

Dorchester Ont



Poncho Master!

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Thanks Andy, I was thinking of doing this too as well ...



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Guru

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Just a note the distributor plug bit size is 30thou pretty small, i picked them up at machine shop suppply house .The hole is small because of pressure drop if to big, a fine spray is all thats needed. Good luck with the mods its worth it.

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AAK

Dorchester Ont



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unburt wrote:

Just a note the distributor plug bit size is 30thou pretty small, i picked them up at machine shop suppply house .The hole is small because of pressure drop if to big, a fine spray is all thats needed. Good luck with the mods its worth it.


 I did the same thing on my Ram Air III block back in 1996



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Pete
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