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LT1 remote thermostat housing

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Old 02-06-2003, 01:42 PM   #1
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Join Date: Feb 2001
Location: Hinesville, GA USA
Posts: 938
Car: '86 IROC-Z/'94 Z28
Engine: 350 LT1/382 LT1
Transmission: 4L60-E/T-56
Axle/Gears: 3.45/3.42 (soon 4.10)

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LT1 remote thermostat housing

What size ports do the thermostat housings have to have to work? I found one in Speedway for $34.95, which looks the same as the one in summit, and it says it has 3 1/2" NPT ports. Sound like it'll work? Part number is 805-7134, sounds like Weiand.
1986 IROC-Z28 Camaro, yellow/black, vortec 383 TPI, 700R4, SLP headers, Borla catback
1988 GTA Trans Am, white/grey, 382ci tuned port LT1/T56/0411 in the works.
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Old 02-06-2003, 07:59 PM   #2
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Join Date: Feb 2000
Location: Savannah, GA
Posts: 2,361
Car: 1997 Jeep Wrangler
Engine: 4.0L
Transmission: 5 speed
Axle/Gears: 8.8 rear, 4.56 gears, 4:1 transfer

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That's a great price, it is a Weiand part number too. It is their unpolished housing. You can add a "P" to the end for the polished version.
I stopped useing Weiand because of availablity or lack of really, especially the polished version. I know use only Offenhouser because they are more available.
Both housing have three 1/2" NPT holes in the side. The Offenhouser housing also has one 1/4" NPT hole as well. I enlarge it to 3/8" NPT for the CTS sensor when you get it through me.
  • 1997 Jeep Wrangler
  • 1991 Honda TRX300
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