I recentley installed disc brakes on my 65 and am in the process of replacing the steel brake lines. Two recommendations needed. Where would one find the complete pre-bent steel brake lines for the front and 2nd, a porportioning valve is now needed, I assume, to limit the rear brakeing. What product would you guys/gals recommend. Thanks in advance.
Try Inline Tube . They had them for my '65 Wildcat and the transmission cooling lines. If they have them for my cat, you know they have them for the lark. I think they have proportioning valves too. You'll need to scroll to the right to see the prices on the steel lines. Rick
I have the correct AC Delco prop valve now on EBay. My seller name there is gstage1. If you don't need it know, I can usually find them. Let me know.
Len, I used an adjustable proportioning valve on the rear. I'm not sure if that was the best way to do it, being the more I read about it, the more confused I get. Some say you need a restrictor in the front line as well. Some say you are better to put the adjustable prop. valve in the front line. I was also told to take the factory prop valve out. Anyway, it seems to do its job. The Wilwood adjustable valve seems to be what they all are, just about no matter whose name is on it. Jegs, Summit, Speedway, they all look the same. I'd say get the cheapest one you can find. If anybody knows of a good brake article explaining all this, written by someone like herb adams instead of some magazine writer, I'd sure like to read it.
If you want a stock one for 71-2 which is technically a combination valve, here it is. Price is $35 + ship. Email me direct at GStage1@buickperformance.com
I've just read a complete explaination of how and where these particulars come into play. Also what was stock etc. It can be found at www.inlinetube.com Very good article explaining stock, non stock, conversions etc. It appears that the block I have on the car, I don't think it's original, will work just fine and I will add an adjustable porportioning vale to the rear brake system. Check it out, it may answer some questions. And thanks for all the input as always.
On my 65 GS I mounted the adjustable prop valve on the rear crossmember right near where the flexible line goes thru. It was super easy to bend up one short piece of tubing to connect the prop valve output to the flex line fitting. The front to rear line went right into the prop valve inlet. Plus you can't see it. At the front I used the factory T block on the frame only to connect the master cyl front output to the 2 front lines - I just plugged the back of that T block. That makes it easy since the repro lines you buy will connect the wheels to that T block perfectly. Then you need to bend up a short piece that connects the master cyl to the front end of the rear line.
I used FineLines for my brake lines. every line replaced on a 70 including the ones off the MC. I told them I was doing a disc brake conversion and asked what prop valve i was using. (the brass one from OPGI. ) everything fit perfectly without any adjustments (bends) required anywhere. i'm sure they could help you out too on the lines.
