question regarding new clutch master cylinder - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Eagletucky · 04-16-2009, 10:50 AM

I am in the process of gathering parts to convert the front crossmember on my 61 Chevy over to a 78 chevy. It all seems to look fairly straightforward, but i'm getting hung up on one issue.

The stock setup on the 61 is a combined clutch/brake master cylinder. When I perform this conversion, I will be going to a dual brake resevoir MC. Has anyone found a replacement clutch master cylinder that will work? It also looks like the clutch MC would need to be relocated, as the new brake MC would be in the way.

For the record, I am running 1962 235 out of a 62 Impala, with the original truck 4 speed saginaw with hydraulic clutch. I know I will need to fab up motor mounts, not worried about that. The clutch has me a little bewildered.

Thanks in advance.

joe231 · 04-16-2009, 01:02 PM

here is one option
http://www.classicperform.com/Store/...T6062BB28D.htm

bit spendy though, $450

Eagletucky · 04-16-2009, 01:12 PM

Yeah, thats more than I paid for the whole truck, but at least i have an option. Thanks alot!

**slepysal** · 04-16-2009, 05:25 PM

I'm going to be swaping to a dual resivour master cylinder soon.
Like your 61, my 60 has the same set up. What I am going to use is a Willwood clutch master I bought from MP BRAKES. It came with a braket that mounts to the fire wall,a new push rod and instructions. Basicly you drill a 5/8 hole , get rid of the old clutch linkage and attach the new push rod to the cluch pedal.
I wont be able to do this for a bit , but will post pics.
Oh and yea that CPP set up is expensive. I paid about 85.00, but if you are handy you could make your own bracket. Hopes this helps

**TR65** · 04-16-2009, 08:07 PM

Hey Tucky,

I had to add a hydraulic clutch for my LS2 swap. Here is a link to the way I did it with an inexpensive Willwood unit like SlepySal. Hope it helps some.

http://67-72chevytrucks.com/vboard/s...d.php?t=300087

TR

Eagletucky · 04-16-2009, 11:27 PM

Definately a BIG help, thanks alot for the info!

**slepysal** · 04-17-2009, 12:13 AM

nice job TR65 !!

soba_03 · 04-21-2009, 02:38 PM

CPP 599 and about the only way to go....

soba_03 · 04-21-2009, 02:42 PM

DANG tr65, I feel like I need to delete my post about my store bought unit after seeing your thread. Nice job for sure.

**slepysal** · 04-21-2009, 02:56 PM

The ony problem with the CPP unit is the clearance .I dont think it will clear with my 250 cliford intake. How much room between the booster and airfilter ?

soba_03 · 04-21-2009, 03:02 PM

Sal,

I'll measure it for you tommrrow, How wide is your intake, it is a single carb intake? Or dual?

It sits quite a bit higher than the intake manifold. I'll measure and try and get some pic's so you can make an informed decission.

I've added some other pictures that might help until I get some measurements. Do you have a measurement as to how far out your manifold sits? Does it look anything like the OFFY dual intake on mine?

**slepysal** · 04-21-2009, 03:31 PM

Thanks Soba_03 I am running a single 2bbl holley on a clifford intake
Name: motor.jpg
Views: 943
Size: 60.5 KB

Some mesurments would be great !!

**slepysal** · 04-25-2009, 10:54 PM

just finished my clutch master works goodr I will do a post latter

04-16-2009, 10:50 AM	#1
Eagletucky Where did THAT bolt go? Join Date: Feb 2009 Location: Speedway, Indiana Posts: 306	question regarding new clutch master cylinder I am in the process of gathering parts to convert the front crossmember on my 61 Chevy over to a 78 chevy. It all seems to look fairly straightforward, but i'm getting hung up on one issue. The stock setup on the 61 is a combined clutch/brake master cylinder. When I perform this conversion, I will be going to a dual brake resevoir MC. Has anyone found a replacement clutch master cylinder that will work? It also looks like the clutch MC would need to be relocated, as the new brake MC would be in the way. For the record, I am running 1962 235 out of a 62 Impala, with the original truck 4 speed saginaw with hydraulic clutch. I know I will need to fab up motor mounts, not worried about that. The clutch has me a little bewildered. Thanks in advance. __________________ The Swiss Car Club......A drinking club with a car problem....

04-16-2009, 01:02 PM	#2
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: question regarding new clutch master cylinder here is one option http://www.classicperform.com/Store/...T6062BB28D.htm bit spendy though, $450 __________________ *CHEVY ONLY*

04-16-2009, 01:12 PM	#3
Eagletucky Where did THAT bolt go? Join Date: Feb 2009 Location: Speedway, Indiana Posts: 306	Re: question regarding new clutch master cylinder Yeah, thats more than I paid for the whole truck, but at least i have an option. Thanks alot! __________________ The Swiss Car Club......A drinking club with a car problem....

04-16-2009, 05:25 PM	#4
slepysal Registered User Join Date: Oct 2006 Location: San Jose NOR*CAL Posts: 3,080	Re: question regarding new clutch master cylinder I'm going to be swaping to a dual resivour master cylinder soon. Like your 61, my 60 has the same set up. What I am going to use is a Willwood clutch master I bought from MP BRAKES. It came with a braket that mounts to the fire wall,a new push rod and instructions. Basicly you drill a 5/8 hole , get rid of the old clutch linkage and attach the new push rod to the cluch pedal. I wont be able to do this for a bit , but will post pics. Oh and yea that CPP set up is expensive. I paid about 85.00, but if you are handy you could make your own bracket. Hopes this helps __________________ 1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes. "Over, Around or through it... " Last edited by slepysal; 04-16-2009 at 05:28 PM.

04-16-2009, 08:07 PM	#5
TR65 Senior Member Join Date: Nov 2007 Location: Greenville, SC Posts: 873	Re: question regarding new clutch master cylinder Hey Tucky, I had to add a hydraulic clutch for my LS2 swap. Here is a link to the way I did it with an inexpensive Willwood unit like SlepySal. Hope it helps some. http://67-72chevytrucks.com/vboard/s...d.php?t=300087 TR __________________ 1965 C10 SWB Fleet Two owner LS2 Swap Thread http://67-72chevytrucks.com/vboard/s...d.php?t=413880

04-16-2009, 11:27 PM	#6
Eagletucky Where did THAT bolt go? Join Date: Feb 2009 Location: Speedway, Indiana Posts: 306	Re: question regarding new clutch master cylinder Definately a BIG help, thanks alot for the info! __________________ The Swiss Car Club......A drinking club with a car problem....

04-17-2009, 12:13 AM	#7
slepysal Registered User Join Date: Oct 2006 Location: San Jose NOR*CAL Posts: 3,080	Re: question regarding new clutch master cylinder nice job TR65 !! __________________ 1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes. "Over, Around or through it... "

04-21-2009, 02:38 PM	#8
soba_03 Registered User Join Date: Sep 2007 Location: Fairdale, Kentucky Posts: 560	Re: question regarding new clutch master cylinder CPP 599 and about the only way to go.... Attached Images

04-21-2009, 02:42 PM	#9
soba_03 Registered User Join Date: Sep 2007 Location: Fairdale, Kentucky Posts: 560	Re: question regarding new clutch master cylinder DANG tr65, I feel like I need to delete my post about my store bought unit after seeing your thread. Nice job for sure.

04-21-2009, 02:56 PM	#10
slepysal Registered User Join Date: Oct 2006 Location: San Jose NOR*CAL Posts: 3,080	Re: question regarding new clutch master cylinder The ony problem with the CPP unit is the clearance .I dont think it will clear with my 250 cliford intake. How much room between the booster and airfilter ? __________________ 1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes. "Over, Around or through it... "

04-21-2009, 03:02 PM	#11
soba_03 Registered User Join Date: Sep 2007 Location: Fairdale, Kentucky Posts: 560	Re: question regarding new clutch master cylinder Sal, I'll measure it for you tommrrow, How wide is your intake, it is a single carb intake? Or dual? It sits quite a bit higher than the intake manifold. I'll measure and try and get some pic's so you can make an informed decission. I've added some other pictures that might help until I get some measurements. Do you have a measurement as to how far out your manifold sits? Does it look anything like the OFFY dual intake on mine? Attached Images Last edited by soba_03; 04-21-2009 at 03:04 PM.

04-21-2009, 03:31 PM	#12
slepysal Registered User Join Date: Oct 2006 Location: San Jose NOR*CAL Posts: 3,080	Re: question regarding new clutch master cylinder Thanks Soba_03 I am running a single 2bbl holley on a clifford intake Some mesurments would be great !! __________________ 1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes. "Over, Around or through it... "

04-25-2009, 10:54 PM	#13
slepysal Registered User Join Date: Oct 2006 Location: San Jose NOR*CAL Posts: 3,080	Re: question regarding new clutch master cylinder just finished my clutch master works goodr I will do a post latter __________________ 1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes. "Over, Around or through it... "

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