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Old 03-24-2011, 09:17 AM   #1
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Location: Watertown, SD
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Big Block Temperature Sensor Questions

I just swapped a454 big block into my 71. Where should I locate the temperature sending unit on the engine? (Currently it is on the drivers side head of the 73 and up motor) And what wire color/connector hooks up to the sender itself? I just bought a brand new engine harness from Brothers so I'm not sure where it goes on this motor.
1971 Cheyenne Short Fleet - 468BB/TH400, Tilt, Tach, PS, PB

1967 Custom Short Fleet - 327/4spd
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Old 03-24-2011, 09:38 AM   #2
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Location: Muskegon,MI,USA
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Re: Big Block Temperature Sensor Questions

The location on the engine will be good. The small blocks have the sender on the driver's side head between cylinders 1 and 3 so the wiring should work out.

The factory wire for the sender is green.

1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end
1965 Impala SS 400 sbc, Muncie rock crusher
1966 Impala SS 396 bbc, TH 400
1969 El Camino, 350 sbc, TH 350
1971 Snowplow built on a Blazer frame
1972 GMC Short bed, stepside, TH 400, 427 BBC

Last edited by JimKshortstep4x4; 03-24-2011 at 09:40 AM. Reason: added wording
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