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May 1, 2019 | 10:53 PM

Eds87vette

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5th Gear

Joined: May 2019

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Part

I have a 1987 convertible that I’m restoring. Anyone know what or where this part goes? The wiring harness is in the back end of the engine and have located the two wires for it, but don’t know where it attaches or what it does.

May 1, 2019 | 11:36 PM

Vette_DD

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From: McKinney TX

St. Jude Donor '21-'22-'23-'24

Wait for a moderator to move these 2 posts to the C4 forum for you.

May 2, 2019 | 01:13 AM

Vetteman Jack

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Moved to C4 General.

May 2, 2019 | 01:17 AM

confab

Melting Slicks

Joined: Nov 2013

Posts: 3,451

Likes: 336

From: Greater Cincinnati Area.

Looks like GM's convoluted oil pressure sensor and oil pressure switch assy to me.

There's a 1/8th npt hole pointed straight up behind the intake to screw it all into.

May 2, 2019 | 08:22 AM

64Scout

Burning Brakes

Joined: Oct 2017

Posts: 823

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From: Somewhere near Fort Wayne, Indiana

^^^ what he said.

May 2, 2019 | 08:33 AM

Kevova

Le Mans Master

Joined: Sep 2013

Posts: 6,192

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From: near the thumb in the mitten

All 4 pieces install individually, if engine is assembled. Pipe dope is your friend assembling.

May 2, 2019 | 10:14 AM

DMITTZ

Melting Slicks

Joined: Mar 2016

Posts: 2,778

Likes: 580

From: Langley BC

Pretty sure that is the oil pressure sending unit. Should screw into an oil port/galley on the back of the engine near the top of the engine just off center on the driver's side. If the engine is in the car you will have to take those pieces apart and install them one by one as you won't have room to spin the whole assemablly on as one piece.

Good Luck!

Last edited by DMITTZ; May 2, 2019 at 10:16 AM.

May 2, 2019 | 12:12 PM