1966 service id label glovebox lets see them - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**yelmer** · 10-23-2012, 06:39 PM

lets see the labels what options are out there

oem4me · 10-23-2012, 07:41 PM

Mine is a good one for those who don't like to read.

theastronaut · 10-24-2012, 12:46 PM

flips72 · 10-24-2012, 04:58 PM

i didnt even know these trucks came with them, i thought they started in 67,cool post thanks.

**Clyde65** · 10-24-2012, 05:53 PM

OEM4me, what does "engine conversion" mean?

bonehead · 10-24-2012, 08:36 PM

My sticker is all smeared up and almost impossible to read, but here is what I could make out on it.

PAINT: 530

Z62AA CUSTOM GROUP
Z53AB AMP METER OIL GAUGE
Z61AF CUSTOM GROUP

B98AA SIDE TRIM MOLDING EQ
C41AL THRIFT AIR HEATER
V37EA CHROME BUMPER FRT & R

**yelmer** · 10-27-2012, 11:31 PM

more

**yelmer** · 10-27-2012, 11:36 PM

on the engine conversion. do you know where your truck was shipped to? i had that on my 66 cc ship to denver. i thought it might be a jet change in the carb due to high alitude ? does anybody have a 327 shipped to cailf. i was wondering if your oil cap is push on or twist on with a hose ?

oem4me · 10-28-2012, 12:56 AM

Quote:

Originally Posted by yelmer

on the engine conversion. do you know where your truck was shipped to? i had that on my 66 cc ship to denver. i thought it might be a jet change in the carb due to high alitude ? does anybody have a 327 shipped to cailf. i was wondering if your oil cap is push on or twist on with a hose ?

According to another member more knowledgeable than myself, the "engine conversion" pertains to smog equipment adaptations on Fremont, CA built trucks depending upon where the truck was headed. Mine went to Enumclaw, WA.

**yelmer** · 10-28-2012, 09:00 AM

do youknow what was on the smog truck? the denver truck i had looked like all the others i have had? well i hope we find out what it was . they had some weird stuff

**VictoriaHardware** · 11-25-2012, 12:25 PM

Regarding the "Engine Conversion" , I have a '66 C10 with a 292 Built in Fremont and delivered to a California dealer. It does not have any "engine conversion" listed on the glove box, but does list "K19XM Exhaust Emission Eq" . The engine compartment is unmolested and still has the AIR pump on it.

**VictoriaHardware** · 11-25-2012, 12:48 PM

Here's my '66 C10 Suburban

oem4me · 11-25-2012, 12:52 PM

Quote:

Originally Posted by VictoriaHardware

Regarding the "Engine Conversion" , I have a '66 C10 with a 292 Built in Fremont and delivered to a California dealer. It does not have any "engine conversion" listed on the glove box, but does list "K19XM Exhaust Emission Eq" . The engine compartment is unmolested and still has the AIR pump on it.

So, does it make sense to say that if the Fremont, CA built trucks were delivered to CA dealers, then the smog equip was standard, but if shipped to other states that did not have smog requirements, then the "engine conversion" was essentially removing all smog stuff?

**VictoriaHardware** · 11-25-2012, 03:05 PM

I think it's true that back then ANY vehicle delivered to CA had extra emissions equipment, regardless of where it was built. The law didn't state HOW to meet the requirement, but AIR was the most common way. It seems backwards that AIR would be considered standard, and they would "remove" it from 90% of the vehicles.

So... I'm still not sure what Z20 Engine Conversion refers to. Comparing SPIDs the exact verbage for the same RPO is sometimes different from Plant to Plant and Year to Year. Was Z20 a Fremont-only option? This is gonna need more examples to figure out.

gmcdeadhead · 11-25-2012, 04:37 PM

heres my 1966 c-20. [IMG]

[/IMG]

**yelmer** · 11-25-2012, 05:15 PM

I have a 66 chevy truck c-20 shipped to cailf. No smog equip. Original truck . But does have closed engine pos. Vent option k24ed

**VictoriaHardware** · 12-09-2012, 04:14 PM

Regarding RPO Z20 Engine Conversion Equipment, this is in the 1966 Assembly Manual. It did several things-

(1) Threaded plugs were installed where the AIR tubes would go into the head
(2) Thermostat was replaced, presumably with a different opening temperature
(3) On L6 engines, the oil fill cap was replaced with a screw-on, non-vented one and a hole was plugged with a grommet
(4) It also concerns the distributor but pages A3 & A4 are missing

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Name: Z20_A1.jpg
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So -
• Apparently ’66 was the first year for this option
• It applied to all engines for CK10, 20, 30, and P10, L6 and V8 (???)
• K19 (Air Injection Reactor) and Z20 were mutually exclusive
• There’s no indication this was Fremont-only

There’s a lot left to understand here. Not sure why this was needed.

**yelmer** · 07-19-2016, 08:53 AM

so they have another type of conversion interesting thanks for the additional info

10-23-2012, 06:39 PM	#1
yelmer Registered User Join Date: Aug 2008 Location: greeley colorado Posts: 1,360	1966 service id label glovebox lets see them lets see the labels what options are out there Attached Images

10-23-2012, 07:41 PM	#2
oem4me Registered User Join Date: Aug 2010 Location: Burbank CA Posts: 3,055	Re: 1966 service id label glovebox lets see them Mine is a good one for those who don't like to read. Attached Images

10-24-2012, 12:46 PM	#3
theastronaut Registered User Join Date: May 2011 Location: Anderson SC Posts: 3,881	Re: 1966 service id label glovebox lets see them __________________ Project Goldilocks '66 C10 Short Fleet BBW Build '65 C10 Highly Detailed Stock Restoration Thread '78 Camaro Targa Roof Build '55 International Metal/Body/Paint Work '66 F100 Full Rotisserie Restoration '40 Packard 120 Convertible Coupe Restoration How To Restore and Detail an Original Gauge Cluster How To Detail Sand Body Panels, Edges, Corners, Etc

10-24-2012, 04:58 PM	#4
flips72 Registered User Join Date: Jan 2008 Location: oldfort tn Posts: 1,183	Re: 1966 service id label glovebox lets see them i didnt even know these trucks came with them, i thought they started in 67,cool post thanks. __________________ my 65 fleetside build http://67-72chevytrucks.com/vboard/s...d.php?t=442370 big back glass conversion http://67-72chevytrucks.com/vboard/s...dow+conversion

10-24-2012, 05:53 PM	#5
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,540	Re: 1966 service id label glovebox lets see them OEM4me, what does "engine conversion" mean? __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

10-24-2012, 08:36 PM	#6
bonehead Registered User Join Date: Jun 2007 Location: Charlotte, NC Posts: 516	Re: 1966 service id label glovebox lets see them My sticker is all smeared up and almost impossible to read, but here is what I could make out on it. PAINT: 530 Z62AA CUSTOM GROUP Z53AB AMP METER OIL GAUGE Z61AF CUSTOM GROUP B98AA SIDE TRIM MOLDING EQ C41AL THRIFT AIR HEATER V37EA CHROME BUMPER FRT & R __________________ past trucks: 1980 C-10 Silverado SWB 1961 C-10 custom cab LWB 1966 C-10 custom cab LWB

10-27-2012, 11:31 PM	#7
yelmer Registered User Join Date: Aug 2008 Location: greeley colorado Posts: 1,360	Re: 1966 service id label glovebox lets see them more Attached Images

10-27-2012, 11:36 PM	#8
yelmer Registered User Join Date: Aug 2008 Location: greeley colorado Posts: 1,360	Re: 1966 service id label glovebox lets see them on the engine conversion. do you know where your truck was shipped to? i had that on my 66 cc ship to denver. i thought it might be a jet change in the carb due to high alitude ? does anybody have a 327 shipped to cailf. i was wondering if your oil cap is push on or twist on with a hose ?

10-28-2012, 09:00 AM	#10
yelmer Registered User Join Date: Aug 2008 Location: greeley colorado Posts: 1,360	Re: 1966 service id label glovebox lets see them do youknow what was on the smog truck? the denver truck i had looked like all the others i have had? well i hope we find out what it was . they had some weird stuff Last edited by yelmer; 10-28-2012 at 09:40 AM. Reason: speeling

11-25-2012, 12:25 PM	#11
VictoriaHardware Senior Member Join Date: Nov 2012 Location: Southeast Michigan Posts: 784	Re: 1966 service id label glovebox lets see them Regarding the "Engine Conversion" , I have a '66 C10 with a 292 Built in Fremont and delivered to a California dealer. It does not have any "engine conversion" listed on the glove box, but does list "K19XM Exhaust Emission Eq" . The engine compartment is unmolested and still has the AIR pump on it.

11-25-2012, 12:48 PM	#12
VictoriaHardware Senior Member Join Date: Nov 2012 Location: Southeast Michigan Posts: 784	Re: 1966 service id label glovebox lets see them Here's my '66 C10 Suburban Attached Images

11-25-2012, 03:05 PM	#14
VictoriaHardware Senior Member Join Date: Nov 2012 Location: Southeast Michigan Posts: 784	Re: 1966 service id label glovebox lets see them I think it's true that back then ANY vehicle delivered to CA had extra emissions equipment, regardless of where it was built. The law didn't state HOW to meet the requirement, but AIR was the most common way. It seems backwards that AIR would be considered standard, and they would "remove" it from 90% of the vehicles. So... I'm still not sure what Z20 Engine Conversion refers to. Comparing SPIDs the exact verbage for the same RPO is sometimes different from Plant to Plant and Year to Year. Was Z20 a Fremont-only option? This is gonna need more examples to figure out. Last edited by VictoriaHardware; 07-18-2016 at 12:51 PM. Reason: typo

11-25-2012, 04:37 PM	#15
gmcdeadhead Registered User Join Date: Jul 2007 Location: branchburg, new jersey Posts: 568	Re: 1966 service id label glovebox lets see them heres my 1966 c-20. [IMG][/IMG]

11-25-2012, 05:15 PM	#16
yelmer Registered User Join Date: Aug 2008 Location: greeley colorado Posts: 1,360	Re: 1966 service id label glovebox lets see them I have a 66 chevy truck c-20 shipped to cailf. No smog equip. Original truck . But does have closed engine pos. Vent option k24ed

12-09-2012, 04:14 PM	#17
VictoriaHardware Senior Member Join Date: Nov 2012 Location: Southeast Michigan Posts: 784	Re: 1966 service id label glovebox lets see them Regarding RPO Z20 Engine Conversion Equipment, this is in the 1966 Assembly Manual. It did several things- (1) Threaded plugs were installed where the AIR tubes would go into the head (2) Thermostat was replaced, presumably with a different opening temperature (3) On L6 engines, the oil fill cap was replaced with a screw-on, non-vented one and a hole was plugged with a grommet (4) It also concerns the distributor but pages A3 & A4 are missing So - • Apparently ’66 was the first year for this option • It applied to all engines for CK10, 20, 30, and P10, L6 and V8 (???) • K19 (Air Injection Reactor) and Z20 were mutually exclusive • There’s no indication this was Fremont-only There’s a lot left to understand here. Not sure why this was needed.



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07-19-2016, 08:53 AM	#18
yelmer Registered User Join Date: Aug 2008 Location: greeley colorado Posts: 1,360	Re: 1966 service id label glovebox lets see them so they have another type of conversion interesting thanks for the additional info

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