1986 silverado 305 temp sensor hole size in head. Pics inside

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Nasty-LSX

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As some of you might already know, I am doing a 99 Vortec 454 swap in a 86 C10
The 454 has a 1/2 inch hole in the head for the original sensor. Is there a sensor for a small
block with a half inch thread or am I going to have to find a adapter of some sort? Thanks

You can see here in the pic, Pass side has a 1/2 brass freeze plug and driver is same size.

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Turbo4whl

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AC Delco G1852 ??

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Don't understand why the head would have the 1/2 NPT threaded hole. But a pipe bushing that can be bought anywhere will work.
 

78C10BigTen

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As some of you might already know, I am doing a 99 Vortec 454 swap in a 86 C10
The 454 has a 1/2 inch hole in the head for the original sensor. Is there a sensor for a small
block with a half inch thread or am I going to have to find a adapter of some sort? Thanks

You can see here in the pic, Pass side has a 1/2 brass freeze plug and driver is same size.

You must be registered for see images attach
You must be registered for see images attach
Thats a pretty motor!
 

Nasty-LSX

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Mi Hung Lo
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c10/k10/k20
Engine Size
LSX
thank you again TURBO
 

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