Thermostats Issue - ZR-1 Net Registry Forums

Ccmano · 06-26-2018

Ok... this is getting frustrating. Take a look at the photo below. The thermostat on the left is what came out of the car and is correct. Note the brass piece on the bottom with the two cut outs.

The middle one is an AC/Delco that came from RockAuto. Note the bottom piece, in this case steel and no cutouts. To my knowledge not correct.

On the left, also from RockAuto, is a Gates brand. Note the bottom cup shaped piece. Also not correct. This is the second one like this is have received like this, the previous one in a Stant box marked 14068. I should also add the Gates listing on RockAuto showed a photo of the correct thermostat like the one on the left. What I got looks nothing like it.

Does anyone know if the AC/Delco shown is usable? Does anyone have a source for a correct thermostat? (that doesn’t cost stupid money)

Looking at the one that came out it’s apparent that it’s not the at old. I say that because someone drilled a 1/8th hole, per Jerry’s writeup, in the top plate, indicating a relatively recent replacement. I may just check it for proper opening and put it back in.

On a side note when I opened the thermostat housing on the new (to me) engine I found an L98 thermostat.

H

06-26-2018	#1
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Thermostats Issue Ok... this is getting frustrating. Take a look at the photo below. The thermostat on the left is what came out of the car and is correct. Note the brass piece on the bottom with the two cut outs. The middle one is an AC/Delco that came from RockAuto. Note the bottom piece, in this case steel and no cutouts. To my knowledge not correct. On the left, also from RockAuto, is a Gates brand. Note the bottom cup shaped piece. Also not correct. This is the second one like this is have received like this, the previous one in a Stant box marked 14068. I should also add the Gates listing on RockAuto showed a photo of the correct thermostat like the one on the left. What I got looks nothing like it. Does anyone know if the AC/Delco shown is usable? Does anyone have a source for a correct thermostat? (that doesn’t cost stupid money) Looking at the one that came out it’s apparent that it’s not the at old. I say that because someone drilled a 1/8th hole, per Jerry’s writeup, in the top plate, indicating a relatively recent replacement. I may just check it for proper opening and put it back in. On a side note when I opened the thermostat housing on the new (to me) engine I found an L98 thermostat. H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. Last edited by Ccmano; 03-29-2020 at 07:43 PM.