Looking for efe valve 81 k10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Matt Man · 01-27-2017, 03:51 AM

I'm looking for a efe valve for my 1981 chevy k10 that has a 350, I might have to install this back on my truck and I'm having problems finding one. Thanks.

nonstop · 01-27-2017, 10:09 AM

There's a lot on eBay. Might not be specifically for your application but I would think as long as it will bolt up, it should work.

Matt Man · 01-31-2017, 02:29 AM

bump any other suggestions? Would like to find a rebuilt or NOS part.

83GMCK2500 · 01-31-2017, 02:50 PM

Which style did your truck have? The one with the actuator mounted at the valve or the one with the actuator raise up near the valve cover?

Low style: P/N: 5234815, searchable with results on ebay.

**MikeB** · 01-31-2017, 05:33 PM

http://www.ebay.com/itm/like/3319480...&ul_noapp=true

https://www.gmpartsgiant.com/parts/c...e~5234815.html

I wonder what it would take to adapt an early model bi-metal spring-actuated heat riser valve?

Matt Man · 02-01-2017, 09:24 PM

Quote:

Originally Posted by 83GMCK2500

Which style did your truck have? The one with the actuator mounted at the valve or the one with the actuator raise up near the valve cover?
Low style: P/N: 5234815, searchable with results on ebay.

I don't know which style it had hasn't had one since I have owned it. I might fail my re-test for smog so I'm trying to find one.

Quote:

Originally Posted by MikeB

http://www.ebay.com/itm/like/3319480...&ul_noapp=true

https://www.gmpartsgiant.com/parts/c...e~5234815.html

I wonder what it would take to adapt an early model bi-metal spring-actuated heat riser valve?

I'm trying to find the exact original design to please the California smog lords. I am going to be re-doing the exhaust which will have the original manifolds so I want to put the efe valve back in which honestly makes a lot of sense to have anyway.

chengny · 02-02-2017, 06:41 AM

You are looking for GM part 5233150.

You can try

1-800-243-0126
Nickson Industries, Inc.
336 Woodford Ave.
Plainville, CT 06062
Tel: 860-747-1671
Fax: 860-747-1678

https://dl.dropboxusercontent.com/u/...20Catalog.html

Or:

Hamilton Manufacturing

822 Rennie Street
Hamilton, ON
(905) 545-4888

http://www.hamiltonmanufacturing.ca/hrv.htm#5233155

83GMCK2500 · 02-02-2017, 10:29 AM

Quote:

Originally Posted by chengny

You are looking for GM part 5233150.

You can try

1-800-243-0126
Nickson Industries, Inc.
336 Woodford Ave.
Plainville, CT 06062
Tel: 860-747-1671
Fax: 860-747-1678

https://dl.dropboxusercontent.com/u/...20Catalog.html

Or:

Hamilton Manufacturing

822 Rennie Street
Hamilton, ON
(905) 545-4888

http://www.hamiltonmanufacturing.ca/hrv.htm#5233155

Also valid & correct with GM documentation is the number I posted above, in case the original isn't available.

Matt Man · 02-02-2017, 12:50 PM

Thank you very much guys for the info, I will look into the parts.

Thanks again!

Got a question, I'm confused on how it will look once installed, am I going to need more parts because I think its supposed to look like this.

**MikeB** · 02-02-2017, 02:21 PM

Quote:

Originally Posted by Matt Man

I'm trying to find the exact original design to please the California smog lords.

How old do vehicles have to be in CA to be exempt from emission tests?

In Texas, it's 25 years and older.

83GMCK2500 · 02-02-2017, 02:58 PM

Quote:

Originally Posted by Matt Man

Thank you very much guys for the info, I will look into the parts.

Thanks again!

Got a question, I'm confused on how it will look once installed, am I going to need more parts because I think its supposed to look like this.

That's what I was trying to ask you, didn't realize you had never seen the one that was correct for the truck. The one you have pictured is the one I was trying to describe, with the actuator up by the valve cover. That is typically a van application. The two part numbers you've been given are the correct ones for your truck and they will require a small steel tube and some vacuum line to complete the connection. Another thing to consider is if you still have the vacuum switch to control the efe valve. It will screw into the thermostat housing and have a pair of vacuum lines connected to it.

Matt Man · 02-03-2017, 03:27 AM

Quote:

Originally Posted by MikeB

How old do vehicles have to be in CA to be exempt from emission tests?

In Texas, it's 25 years and older.

Mike to be exempt in California you have to own a 1975 or older vehicle. Yup my 36 year old truck still gets tested.

Quote:

Originally Posted by 83GMCK2500

That's what I was trying to ask you, didn't realize you had never seen the one that was correct for the truck. The one you have pictured is the one I was trying to describe, with the actuator up by the valve cover. That is typically a van application. The two part numbers you've been given are the correct ones for your truck and they will require a small steel tube and some vacuum line to complete the connection. Another thing to consider is if you still have the vacuum switch to control the efe valve. It will screw into the thermostat housing and have a pair of vacuum lines connected to it.

Yes I have the vacuum switch already, I know where it plugs into I just want to get a idea of how this thing is going to mount. I will know by this weekend if I have to put one on right away. I'm also going to look for one in the junkyard. Thanks for your help.

Matt Man · 05-15-2017, 01:06 AM

Just a bump in this thread. I found a EFE valve today at the local pick n pull, the actuator holds vacuum just fine and the EFE valve itself is fine. It came out of a 82 c10 with the same emissions as mine. 10$ later it was mine.

Here it is painted up

El Dorado Jim · 05-15-2017, 10:26 PM

I was going to say you might try pick n pull....cool you found what you needed...

01-27-2017, 03:51 AM	#1
Matt Man Registered User Join Date: Oct 2009 Location: Buhl, Idaho Posts: 1,438	Looking for efe valve 81 k10 I'm looking for a efe valve for my 1981 chevy k10 that has a 350, I might have to install this back on my truck and I'm having problems finding one. Thanks. __________________ 86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903

01-27-2017, 10:09 AM	#2
nonstop Registered User Join Date: Dec 2014 Location: Northern California Posts: 422	Re: Looking for efe valve 81 k10 There's a lot on eBay. Might not be specifically for your application but I would think as long as it will bolt up, it should work.

01-31-2017, 02:29 AM	#3
Matt Man Registered User Join Date: Oct 2009 Location: Buhl, Idaho Posts: 1,438	Re: Looking for efe valve 81 k10 bump any other suggestions? Would like to find a rebuilt or NOS part. __________________ 86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903

01-31-2017, 02:50 PM	#4
83GMCK2500 Registered User Join Date: Sep 2009 Location: Beaverton, OR from WA State Posts: 1,515	Re: Looking for efe valve 81 k10 Which style did your truck have? The one with the actuator mounted at the valve or the one with the actuator raise up near the valve cover? Low style: P/N: 5234815, searchable with results on ebay. __________________ Devin 1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt 1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050 1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350 My Introduction with my '83s History New Daily, the '96

02-02-2017, 06:41 AM	#7
chengny Registered User Join Date: May 2007 Location: New Hampshire Posts: 349	Re: Looking for efe valve 81 k10 You are looking for GM part 5233150. You can try 1-800-243-0126 Nickson Industries, Inc. 336 Woodford Ave. Plainville, CT 06062 Tel: 860-747-1671 Fax: 860-747-1678 https://dl.dropboxusercontent.com/u/...20Catalog.html Or: Hamilton Manufacturing 822 Rennie Street Hamilton, ON (905) 545-4888 http://www.hamiltonmanufacturing.ca/hrv.htm#5233155 Attached Images

01-31-2017, 05:33 PM	#5
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,422	Re: Looking for efe valve 81 k10 http://www.ebay.com/itm/like/3319480...&ul_noapp=true https://www.gmpartsgiant.com/parts/c...e~5234815.html I wonder what it would take to adapt an early model bi-metal spring-actuated heat riser valve? __________________ Mike 1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! Last edited by MikeB; 01-31-2017 at 05:57 PM.

02-02-2017, 12:50 PM	#9
Matt Man Registered User Join Date: Oct 2009 Location: Buhl, Idaho Posts: 1,438	Re: Looking for efe valve 81 k10 Thank you very much guys for the info, I will look into the parts. Thanks again! Got a question, I'm confused on how it will look once installed, am I going to need more parts because I think its supposed to look like this. __________________ 86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903 Last edited by Matt Man; 02-02-2017 at 01:19 PM.

05-15-2017, 01:06 AM	#13
Matt Man Registered User Join Date: Oct 2009 Location: Buhl, Idaho Posts: 1,438	Re: Looking for efe valve 81 k10 Just a bump in this thread. I found a EFE valve today at the local pick n pull, the actuator holds vacuum just fine and the EFE valve itself is fine. It came out of a 82 c10 with the same emissions as mine. 10$ later it was mine. Here it is painted up __________________ 86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903

05-15-2017, 10:26 PM	#14
El Dorado Jim Registered User Join Date: Dec 2009 Location: El Dorado Ca Posts: 3,374	Re: Looking for efe valve 81 k10 I was going to say you might try pick n pull....cool you found what you needed...



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