LS1 vs LS6 intake MAP sensor?
Thread Starter
Burning Brakes
Joined: Jul 2018
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From: Miami
LS1 vs LS6 intake MAP sensor?
Hi folks,
Quick question: Just got a used LS6 intake manifold in the mail, and realized the MAP sensor mounting point got destroyed, hence the map sensor fell off and only the twist on mounting base is in place. Should I be able to replace it entirely with my LS1 MAP Sensor and sensor housing? Are they identical in fit?
Quick question: Just got a used LS6 intake manifold in the mail, and realized the MAP sensor mounting point got destroyed, hence the map sensor fell off and only the twist on mounting base is in place. Should I be able to replace it entirely with my LS1 MAP Sensor and sensor housing? Are they identical in fit?
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yes you can replace the vacuum port housing but it is clipped to the intake from the inside so you must free the tabs before it will come off... if you try to just pry it out you will most likely break the intake or the housing... if only the little tab broke that holds the map sensor you can use clear silicone to hold it in place and it should be fine if it is only seeing vacuum and not boost, that way you wouldn't have to go through the hassle of trying to swap the vacuum housing over
Thread Starter
Burning Brakes
Joined: Jul 2018
Posts: 1,113
Likes: 144
From: Miami
yes you can replace the vacuum port housing but it is clipped to the intake from the inside so you must free the tabs before it will come off... if you try to just pry it out you will most likely break the intake or the housing... if only the little tab broke that holds the map sensor you can use clear silicone to hold it in place and it should be fine if it is only seeing vacuum and not boost, that way you wouldn't have to go through the hassle of trying to swap the vacuum housing over
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no it doesn't twist off, there are 3 tabs on the inside that snap it onto the intake... you will need to free those tabs before it will come off, shine a light inside and you will see them... you can try a long flathead screwdriver or something like that and an extra set of hands will be helpful, one person can pull on the housing while the other pushes the tabs in
Thread Starter
Burning Brakes
Joined: Jul 2018
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From: Miami
no it doesn't twist off, there are 3 tabs on the inside that snap it onto the intake... you will need to free those tabs before it will come off, shine a light inside and you will see them... you can try a long flathead screwdriver or something like that and an extra set of hands will be helpful, one person can pull on the housing while the other pushes the tabs in
Broke off during shipment.
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if you are set on swapping it just be very careful when trying to remove the housing, the intake is pretty thin in that area and I have seen people break them pretty easily... that map sensor is trash, the other end of it is still stuck in the intake so you will need to get that out as well... I'm sure the map sensor hole in the intake is fine, if you decide not to swap the piece it would hold the map sensor just fine with some silicone as long as it won't be seeing any boost
Last edited by StingrayRebel; Dec 22, 2018 at 09:03 PM.
Thread Starter
Burning Brakes
Joined: Jul 2018
Posts: 1,113
Likes: 144
From: Miami
if you are set on swapping it just be very careful when trying to remove the housing, the intake is pretty thin in that area and I have seen people break them pretty easily... that map sensor is trash, the other end of it is still stuck in the intake so you will need to get that out as well... I'm sure the map sensor hole in the intake is fine, if you decide not to swap the piece it would hold the map sensor just fine with some silicone as long as it won't be seeing any boost
Pro
Joined: Dec 2017
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From: Kirkland WA
if you are set on swapping it just be very careful when trying to remove the housing, the intake is pretty thin in that area and I have seen people break them pretty easily... that map sensor is trash, the other end of it is still stuck in the intake so you will need to get that out as well... I'm sure the map sensor hole in the intake is fine, if you decide not to swap the piece it would hold the map sensor just fine with some silicone as long as it won't be seeing any boost
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Thread Starter
Burning Brakes
Joined: Jul 2018
Posts: 1,113
Likes: 144
From: Miami
if you are set on swapping it just be very careful when trying to remove the housing, the intake is pretty thin in that area and I have seen people break them pretty easily... that map sensor is trash, the other end of it is still stuck in the intake so you will need to get that out as well... I'm sure the map sensor hole in the intake is fine, if you decide not to swap the piece it would hold the map sensor just fine with some silicone as long as it won't be seeing any boost
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yeah exactly, it should be sealed pretty well with the oring and you can use silicone around the whole perimeter on the outside to seal it... I put a zr1 map sensor in my ls6 intake which has a bigger nipple so I had to drill the intake out for it to fit and then used silicone to seal it... granted it still does have the tab to hold the sensor but it sees 19psi and hasn't popped out lol
Race Director
Joined: Apr 2007
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From: South Western Ontario
The safe way to swap them is to chop the back off the LS1 intake around that housing so you can easily get to the tabs and remove it without damage. Then, cut the protruding part off the LS6 intake before hacking out the center out enough you can get the rest out of the hole. Go slow and you wont damage the intake. I've seen it done, makes one good LS6 intake.
Race Director
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From: South Western Ontario
Thread Starter
Burning Brakes
Joined: Jul 2018
Posts: 1,113
Likes: 144
From: Miami
yeah exactly, it should be sealed pretty well with the oring and you can use silicone around the whole perimeter on the outside to seal it... I put a zr1 map sensor in my ls6 intake which has a bigger nipple so I had to drill the intake out for it to fit and then used silicone to seal it... granted it still does have the tab to hold the sensor but it sees 19psi and hasn't popped out lol
