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06-09-2010, 04:24 PM
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#1 |
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Registered User
Join Date: Apr 2009
Location: Rochester, NY
Posts: 1,458
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what is this for?
I pilled this off a 71 truck with a 350 in it. What is it for? It was in the front of the intake. It has two hose fittings at the top, and is solid at the bottom that goes into the manifold.
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1970 Blazer 350/SM465/205 SOLD! | 1998 Z3 |
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06-09-2010, 04:26 PM
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#2 |
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*** That's interesting ***
Join Date: Oct 2008
Location: Pittsburgh, PA
Posts: 2,772
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Re: what is this for?
Looks like the temp activated vacuum switch, most likely for the heat riser valve in the stock air cleaner snorkel.
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Tom  Chevy by day... 1969 Chevy C30 Rollback Tow Truck -- 383 stroker, 4L80E 2011 Chevy Caprice PPV 9C3 6.0L 1995 Chevy Caprice 9C1 1994 Chevy Caprice 9C1 #3 1995 Chevy Caprice Wagon #2 1995 Chevy Impala SS Mopar by night... 1969 Dodge Charger 1972 Chrysler Newport 2dr Hardtop (27K miles) Plus others... |
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06-09-2010, 04:54 PM
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#3 |
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Registered User
Join Date: Aug 2009
Location: St. Paul MN.
Posts: 1,996
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Re: what is this for?
thermal vac switch never had one on my 71 but seen alot on 74 on up thermostat housings and intake manifolds
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06-09-2010, 10:04 PM
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#4 |
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Registered User
Join Date: Sep 2005
Location: Canton North carolina
Posts: 3,079
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Re: what is this for?
Later model piece that is smog related. 72 down did not use that unit.
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67 blue step side- bb 68 gold and white swb cst anniversary 68 custom swb hot rod Ls swap 69 swb cst 6 cylinder/ overdrive 69 black/black cst bb swb 70 orange and white cst Canada built truck swb bb 71 black and white super swb bb 71 red and white super swb 72 green and white super swb 4x4 62 nova wagon 400 series Ls swapped 68 Camaro 327/4 speed- 1 owner, original paint 66 Volkswagen bettle 69 auto stick Volkswagen Beetle |
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