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#1
02-22-2007, 05:03 AM
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1970 L/78 Nova brake valve setup question
Hi all !
I have a fast question I'm sure someone can answer rather quickly. A friend is restoring an 02-C-1970 L/78 Nova and we ran into a problem with the brakes. Disc brake Nova's used two different junction blocks, brake valves, and pressure regulator valve setups depending on the build date. We believe there were two different setups used ( early vs. late ). It appears that the early build used the same setup as that used on the 69 Camaro. Can anyone tell me what the cutoff date was for one setup vs the other? Also, if we need the later setup, can someone post an image of the complete assembly at the master cylinder location so we can see the routing of the lines, etc.? Thanks, Steve
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#2
02-22-2007, 06:57 PM
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Re: 1970 L/78 Nova brake valve setup question
I don't think the cutoff date has been determined. There are mid-year 69's without the block on the subframe, and early '70's with the block on the subframe. So, it's best to use what you found. If everything was missing, and you don't know, go without the block on the frame. Check out Gregg Robert's site for pics, someone's got a link I'm sure.
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Marlin 70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride) 69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride) 67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
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#3
02-22-2007, 08:49 PM
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Re: 1970 L/78 Nova brake valve setup question
There was never a block on the frame.The original line is still there but thats it all else is gone.I have a good reference picture that shows the brass Texas shaped valve mounted to the right (pass side) of the master.And the pic.also shows a brass distribution block with 3 segments.What I mean by 3 segments is the forward junction for front lines,Then the balance switch then a junction for the line from the Texas valve to the rear brake line.And lastly a junction at the rear of the block that accepts the line from the rear port of the master to the Texas valve.Is this set-up common on the late 70 novas?
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"Knowledge is good" Emil Fabor 67 L/78 Camaro SS/RS H-H,1W,2LGSR,3SL,4K,5BY. (Sold) 70 L/78 Nova M-21,Black Cherry,Sandalwood Int. 09 Pontiac G8 GT Premium,Sport,Roof. Liquid Red.
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#4
02-22-2007, 09:41 PM
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Re: 1970 L/78 Nova brake valve setup question
Yes.
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Marlin 70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride) 69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride) 67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride)
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#5
02-22-2007, 09:56 PM
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Re: 1970 L/78 Nova brake valve setup question
Any idea where one can find one of these brass distribution blocks?
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"Knowledge is good" Emil Fabor 67 L/78 Camaro SS/RS H-H,1W,2LGSR,3SL,4K,5BY. (Sold) 70 L/78 Nova M-21,Black Cherry,Sandalwood Int. 09 Pontiac G8 GT Premium,Sport,Roof. Liquid Red.
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#7
02-22-2007, 11:51 PM
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Re: 1970 L/78 Nova brake valve setup question
Is it the 3 segment brass style?If it is i'm at your mercy.
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"Knowledge is good" Emil Fabor 67 L/78 Camaro SS/RS H-H,1W,2LGSR,3SL,4K,5BY. (Sold) 70 L/78 Nova M-21,Black Cherry,Sandalwood Int. 09 Pontiac G8 GT Premium,Sport,Roof. Liquid Red.
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#9
02-23-2007, 04:54 AM
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Re: 1970 L/78 Nova brake valve setup question
Here are some images of the junction block Steve referenced:
  Nuch
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#10
02-23-2007, 06:29 AM
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Re: 1970 L/78 Nova brake valve setup question
hey nuch..clean out your box....
tw
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02 Berger 380hp #95 Lots of L78 Novas Join National Nostalgic Nova! 70 Orange Cooler 69 Camaro
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