Inline six adding Power Brakes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

N2GMTrux · 03-20-2007, 08:33 PM

I have a 1971 C-10 with Manuel Brakes. I am adding Power Brakes and have a question about where is the vacuum line connection on the manifold. If any one has a picture of which fitting the line connects too.

Thank You for your assist in this!

ks147j111928 · 03-21-2007, 12:33 AM

My 292 has been fitted with power brakes and the vacuum line runs to the intake, check out the pic. I am going back to senor manuel brakes though, taking the 'stock/original' route with my truck. Plus I ordered the wrong stainless brake lines.

duh...

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N2GMTrux · 03-21-2007, 07:32 AM

ks147j111928 ---- Thanks for the pic, I have the 250ci but it should be the same location. I really appreciate you taking the time to post the pic. Thanks

arkracing · 03-21-2007, 08:05 AM

Yep. My truck was a 350 with P/Brakes. I put the 250cid in it and hooked up the Vacuum line in the same place as pictured

Tx Firefighter · 03-21-2007, 09:23 AM

You'll need either a power brake air cleaner or a smaller aftermarket air cleaner too. The stock air cleaner will hit the master cylinder once you install the booster. Factory inline 6 trucks with power brakes had an offset air cleaner assembly that placed the unit over the right side of the engine. I can try and find a pic of my 292 air cleaner if you need clarification.

N2GMTrux · 03-22-2007, 07:55 AM

Quote:

Originally Posted by Tx Firefighter

You'll need either a power brake air cleaner. The stock air cleaner will hit the master cylinder once you install the booster. Factory inline 6 trucks with power brakes had an offset air cleaner assembly that placed the unit over the right side of the engine. I can try and find a pic of my 292 air cleaner if you need clarification.

Is the 292 and 250 air cleaner the same, meaning can I use a 292 off set air cleaner on my 250 in-line. And I would like to see a pic if possible. Thank You

N2GMTrux · 03-26-2007, 08:21 AM

Ttt

**CPNE** · 03-26-2007, 09:42 AM

250 or 292 should be the same setup. The pic below shows an oil bath setup, but the paper element set up is the same

ronh72c10 · 03-26-2007, 12:01 PM

I'm planning on doing the same thing with my 6cyl C10, if you find an aftermarket air cleaner with the correct diameter base for a 1bbl I'd like to hear where you got it. I found one on ebay once but never found it again.

Ron

Tx Firefighter · 03-26-2007, 06:38 PM

Quote:

Originally Posted by N2GMTrux

Is the 292 and 250 air cleaner the same, meaning can I use a 292 off set air cleaner on my 250 in-line. And I would like to see a pic if possible. Thank You

Here is a picture of mine off a 292. Notice how I took great pains to age it so it looks really old and original?

You can also see the vacuum hose screwed into the inlet manifold too.

N2GMTrux · 03-27-2007, 07:48 AM

I want to buy an original air filter like the one shown in the pic's. Thank You everyone for your help in this, I will post on the board a want to buy add.

**CPNE** · 03-27-2007, 10:18 AM

Quote:

Originally Posted by N2GMTrux

I want to buy an original air filter like the one shown in the pic's. Thank You everyone for your help in this, I will post on the board a want to buy add.

Make sure you get the support rod and threaded rod for air cleaner housing (as shown in TX's pic) and the air horn that sits on carb. My pic is an oil bath. Tx's is a paper element. The paper element is more common, but way less cool.

1966Step · 01-22-2021, 11:06 PM

Hey Kevin,

I have 292 in my 66 that came from a school bus and I have been trying to find the original setup for a 292 option for 66. Is yours like the original from the factory? Also what type of carb do you have?

Thanks!

Rihard

Spanky_Pete · 03-27-2007, 04:58 PM

Very cool, albeit weird looking setup.

I'm adding power brakes to my '67, but it's running a clifford intake and a four bbl holley. I know I'm going to have clearance issues with the air cleaner as well.

03-20-2007, 08:33 PM	#1
N2GMTrux Registered User Join Date: Jan 2007 Location: Fort Worth, TX 76133 Posts: 406	Inline six adding Power Brakes I have a 1971 C-10 with Manuel Brakes. I am adding Power Brakes and have a question about where is the vacuum line connection on the manifold. If any one has a picture of which fitting the line connects too. Thank You for your assist in this! __________________ ...try'n to be a little! This is a great site. http://67-72chevytrucks.com/vboard/s...d.php?t=157669 http://www.67-72chevytrucks.com/vboa...d.php?t=375640

03-21-2007, 12:33 AM	#2
ks147j111928 ASE Certified Spoon Operator Join Date: Oct 2006 Location: Colorado Springs, CO Posts: 157	Re: Inline six adding Power Brakes My 292 has been fitted with power brakes and the vacuum line runs to the intake, check out the pic. I am going back to senor manuel brakes though, taking the 'stock/original' route with my truck. Plus I ordered the wrong stainless brake lines. duh... __________________ My six is bigger than your eight 67 K20 292 +.060" SM465 NP203 3.73s 86 4Runner, the daily on 31s 85 4Runner, the wheeler on 38s 92 x-cab truggy project for 2017... tons and 42s and V8 power

03-21-2007, 07:32 AM	#3
N2GMTrux Registered User Join Date: Jan 2007 Location: Fort Worth, TX 76133 Posts: 406	Re: Inline six adding Power Brakes ks147j111928 ---- Thanks for the pic, I have the 250ci but it should be the same location. I really appreciate you taking the time to post the pic. Thanks __________________ ...try'n to be a little! This is a great site. http://67-72chevytrucks.com/vboard/s...d.php?t=157669 http://www.67-72chevytrucks.com/vboa...d.php?t=375640

03-21-2007, 08:05 AM	#4
arkracing Weekend Warrior Join Date: Oct 2004 Location: CT Posts: 1,787	Re: Inline six adding Power Brakes Yep. My truck was a 350 with P/Brakes. I put the 250cid in it and hooked up the Vacuum line in the same place as pictured __________________ -'07 GMC Sierra K2500HD -'66 C10 Suburban -'68/'71 K20 Service Bed Project -'69 Chevy C30 Mason Dump -'33Ford P/U 396ChevyPowered

03-21-2007, 09:23 AM	#5
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Inline six adding Power Brakes You'll need either a power brake air cleaner or a smaller aftermarket air cleaner too. The stock air cleaner will hit the master cylinder once you install the booster. Factory inline 6 trucks with power brakes had an offset air cleaner assembly that placed the unit over the right side of the engine. I can try and find a pic of my 292 air cleaner if you need clarification. __________________ I'm on the Instagram- @Gearhead_Kevin

03-26-2007, 08:21 AM	#7
N2GMTrux Registered User Join Date: Jan 2007 Location: Fort Worth, TX 76133 Posts: 406	Re: Inline six adding Power Brakes Ttt __________________ ...try'n to be a little! This is a great site. http://67-72chevytrucks.com/vboard/s...d.php?t=157669 http://www.67-72chevytrucks.com/vboa...d.php?t=375640

03-26-2007, 09:42 AM	#8
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,662	Re: Inline six adding Power Brakes 250 or 292 should be the same setup. The pic below shows an oil bath setup, but the paper element set up is the same Attached Images __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

03-26-2007, 12:01 PM	#9
ronh72c10 Senior Member Join Date: Jul 2003 Location: Mount Forest, Ontario, Canada Posts: 978	Re: Inline six adding Power Brakes I'm planning on doing the same thing with my 6cyl C10, if you find an aftermarket air cleaner with the correct diameter base for a 1bbl I'd like to hear where you got it. I found one on ebay once but never found it again. Ron __________________ 72 Chevy C10 (rust repaired, starting body work) 72 GMC 3/4ton 4x4 72 Chevy C20 Suburban 38 Ford Tudor Humpback Sedan (from the darkside) 67 Pontiac Parisienne 55 Studebaker Commander 2dr Hardtop (Starliner) My Youtube channel with Video Updates!

03-27-2007, 07:48 AM	#11
N2GMTrux Registered User Join Date: Jan 2007 Location: Fort Worth, TX 76133 Posts: 406	Re: Inline six adding Power Brakes I want to buy an original air filter like the one shown in the pic's. Thank You everyone for your help in this, I will post on the board a want to buy add. __________________ ...try'n to be a little! This is a great site. http://67-72chevytrucks.com/vboard/s...d.php?t=157669 http://www.67-72chevytrucks.com/vboa...d.php?t=375640

01-22-2021, 11:06 PM	#13
1966Step Registered User Join Date: Oct 2018 Location: Solomons Posts: 30	Re: Inline six adding Power Brakes Hey Kevin, I have 292 in my 66 that came from a school bus and I have been trying to find the original setup for a 292 option for 66. Is yours like the original from the factory? Also what type of carb do you have? Thanks! Rihard

03-27-2007, 04:58 PM	#14
Spanky_Pete Too many trucks? Nah... Join Date: Mar 2002 Location: SW Washington State Posts: 154	Re: Inline six adding Power Brakes Very cool, albeit weird looking setup. I'm adding power brakes to my '67, but it's running a clifford intake and a four bbl holley. I know I'm going to have clearance issues with the air cleaner as well.



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