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06-10-2011, 10:14 PM | #1 |
Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
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Mechanical gauges on a LS swap
Here is my swap:
85 SWB, 2004 6.0l w/Vic Jr 4150 style TB and some other goodies backed by a th400 My questions are: Can you use mechanical gauges for the oil press, and water temp? If so, where can I get the appropriate adapters that go into the block/head? I will be swapping out my dash for a 64-66 truck dash and I don't want to buy good gauges until then. I already have the mechanical water and oil pres and would like to just hook them up. I will still be able to use my speedo with the pass thru VSS from Dakota Digital and i am buying my tach bc I am going to mount it on my dash.
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USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
06-10-2011, 11:01 PM | #2 |
Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Mechanical gauges on a LS swap
Yes. water temp can be pulled off one of the heads, just pull the plug and tap the hole for your sender or you can get adapters thru Autometer as well as Speedway Motors. As far as oil pressure, not sure on the LQ4 but there may be a place to tap for oil pressure on the back of the valley pan. If not, many tap the small cover (for motors w/o oil cooler?) near the oil filter.
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
06-11-2011, 02:03 AM | #3 |
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Join Date: Sep 2009
Location: Calgary Alberta
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Re: Mechanical gauges on a LS swap
Anybody have any pics of this??
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06-11-2011, 11:13 AM | #4 |
Has more rust than truck...
Join Date: Apr 2005
Location: Ivanhoe, MN
Posts: 2,421
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Re: Mechanical gauges on a LS swap
You can replace your oil press sender with this and run a mechanical gauge off of it.
http://www.summitracing.com/parts/ATM-2268/ |
06-11-2011, 11:56 AM | #5 |
Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
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Re: Mechanical gauges on a LS swap
Thanks guys, 1 less thing I have to worry about now.
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USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
06-11-2011, 06:00 PM | #6 |
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Join Date: Jul 2006
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Re: Mechanical gauges on a LS swap
Easy as pie, sorry to break it to ya'll but you don't have to drill and tap anything. Click on the links below, they even have a picture of where they go.
Exhibit A: in place of a hex plug in the head: http://www.speedwaymotors.com/LS1-Wa...pter,8195.html Exhibit B: in place of the stock oil pressure sending unit: http://www.speedwaymotors.com/LS-Ser...ter,20928.html
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Last edited by LEEVON; 06-11-2011 at 06:03 PM. |
06-11-2011, 06:00 PM | #7 |
Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Mechanical gauges on a LS swap
see the plug w/allen wrench fitting? Its a plug for the cooling system and where your temp sensor can go. Usually the drivers side (at the front or block) is used, I removed the passenger side (at the back of block) plug and tapped it for 1/8" NPT or maybe 1/4" NPT...can't remember. then put the plug in the drivers side hole left after removing oem sensor.
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken Last edited by 68GMCCustom; 06-11-2011 at 06:00 PM. |
06-12-2011, 12:10 AM | #8 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Mechanical gauges on a LS swap
I used the blockoff for the oil cooler off of my LH8 pan
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06-12-2011, 10:31 PM | #9 |
Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
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Re: Mechanical gauges on a LS swap
Leevon I bought both of those. I used the one for oil pressure (tapped off top/rear of valley pan) sensor which is hidden for the most part...but much prefer the look of the sensor screwed directly into the head for the thermostat, rather then into something that you then screw into the head making for a longer assembly.
My sensor wouldn't work with the Speedway adapter anyway.
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
06-14-2011, 11:04 AM | #10 | |
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Location: sc
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Re: Mechanical gauges on a LS swap
Quote:
Oil pressure sending unit is not needed for the PCM so I got the adaptor from Autometer and put the mechanical unit in there; back of the black behind intake. For the tach, set it up for 4cyl mode and if that is not an option then the PCM can be changed to work if you wire it from the PCM.
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