Knock sensor thread pitch
04-03-2019, 08:02 PM
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Knock sensor thread pitch
Hello guys so I have an 86 Camaro iroc . Engine was swapped with an l05 350 but previous owner kept tpi was going through engine and realized I have no knock sensor. I went to the store and bought one info on it says it has 1/4 in thread but doesnt seam to fit on either side of heads. The heads have a 3/8 threaded hole in it. Any advice on how I can get this to work. ?
I concur. 
04-03-2019, 08:14 PM
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04-03-2019, 08:21 PM
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Re: Knock sensor thread pitch
The connector often gets brittle from heat from the exhaust.
if you need a new connector here’s a link.
https://www.ebay.com/itm/Knock-Senso...gAAOSwMapbaWOC
or as a pigtail
https://www.ebay.com/itm/Knock-Senso...ss!20876!US!-1
if you need a new connector here’s a link.
https://www.ebay.com/itm/Knock-Senso...gAAOSwMapbaWOC
or as a pigtail
https://www.ebay.com/itm/Knock-Senso...ss!20876!US!-1
04-04-2019, 07:35 AM
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Knock sensor thread pitch
Actually, pretty sure it's ¼" pipe. 18 TPI if memory serves. It's about a ½" dia hole, starts out life with a 7/16" drill. In the block on both sides, about 1" above the oil pan rail. KS goes in the pass side drain; driver's side just gets a plug. I strongly recommend brass.
Last edited by sofakingdom; 04-04-2019 at 07:43 AM.
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