Cylinder head

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Sep 4, 2025 | 09:59 PM

grumpybastard

Thread Starter

Intermediate

Joined: Dec 2023

Posts: 29

Likes: 5

From: illinois

Cylinder head

What is this item used for? One side has a bolt in it the other does not on front cylinder.

What is this item used for? One cylinder (rear)has a bolt in it the other cylinder does not (front) it looks like a blind hole with threads? Have I lost something?
S&S super stock heads

Last edited by grumpybastard; Sep 4, 2025 at 10:08 PM. Reason: Wrong wording

Sep 6, 2025 | 04:00 PM

ses

Cruiser

Joined: Mar 2010

Posts: 162

Likes: 16

From: Moorhead MN

My guess is it's the head temperature sensor. It is located on the front cylinder.

Sep 7, 2025 | 07:24 PM

Ed Ramberger

Grand HDF Member

Joined: May 2015

Posts: 3,584

Likes: 1,213

From: Then Wisconsin, now North Carolina

Some parts books show a plug for the threaded blind hole where the engine temp sensor goes on carbureted engines. I believe the actual sensor is shown on a different page but have no reference as to what book that picture is from. Either way it threads into the sensor blind hole.

Sep 8, 2025 | 04:51 AM

topcat1st

Club Member

Joined: Apr 2014

Posts: 156

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From: nc

That is for the twin cooled heads for anti freeze inlet hose

Sep 10, 2025 | 08:32 PM

Ed Ramberger

Grand HDF Member

Joined: May 2015

Posts: 3,584

Likes: 1,213

From: Then Wisconsin, now North Carolina

Quote:

Originally Posted by topcat1st

That is for the twin cooled heads for anti freeze inlet hose

I totwas tally was looking at the head backwards! GREAT CATCH!

Sep 10, 2025 | 08:40 PM

J Cagg

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Joined: Apr 2024

Posts: 138

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From: 21014

I disagree in the extent that we don't know what s&s super stock this is (evo, tc, m8, shovel). It depends on the application. Shovel, evo, tc would be an oil pressure guage outlet. **** m8. Too complicated for me.