Crossover tube bolts, What size thread?
#1
Crossover tube bolts, What size thread?
I have a 95 LT1 and need to know what size the thread is for the steam tube crossover. I found 2 posts that give conflicting information. I used some calipers on my new bolt and it said that the bolt was a 1/2 x 18. I have also heard that it is a 3/8 x 18 nps. And one of the posts below says it is a 1/4-18 NPSF. Which one is it. Here are the links to the other posts.
http://web.camaross.com/forums/showt...ossover+thread
http://web.camaross.com/forums/showt...ossover+thread
http://web.camaross.com/forums/showt...ossover+thread
http://web.camaross.com/forums/showt...ossover+thread
#4
yep, much more "grip space" on the new bolts, would highly reccommend replacing the bolts if you have the tube off.
#5
Originally Posted by shoebox
It's a special thread (1/4-18 NPSF) dryseal, straight pipe thread
Measuring with a caliper is going to confuse you, because pipe thread fittings are larger in outside diameter. A typical 1/4' pipe thread fitting will be ~1/2" in diameter.
Last edited by shoebox; 04-03-2007 at 01:05 PM.
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cyteone
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02-07-2015 06:04 PM