Problem with NGK plugs

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Jan 6, 2008 | 09:10 AM

Jbauer

Thread Starter

4th Gear Member

Joined: Aug 2007

Posts: 1,106

Problem with NGK plugs

the motor craft plugs i pulled out have alot less threads than the NGK ones i bought, the part number is TR55 on the NGKs, should i take it back and buy autolites?

Jan 6, 2008 | 10:20 AM

sstang

5th Gear Member

Joined: Jul 2006

Posts: 2,663

From: NC

RE: Problem with NGK plugs

I use the TR55 plugs with no problems. Even with more threads I still shot one out of the head!

Jan 6, 2008 | 01:02 PM

fyouceeku

1st Gear Member

Joined: Jul 2007

Posts: 143

From:

RE: Problem with NGK plugs

Quote:

ORIGINAL: sstang

I use the TR55 plugs with no problems. Even with more threads I still shot one out of the head!

The PI heads only have about 4 threads. The amount on the plug don't mean anything unless the heads can utilize then.

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