PB Conversion Kits for 63
Race Director
Joined: Dec 2000
Posts: 12,913
Likes: 60
From: Twin Cities, MN
A few things.
First, I don't know 63s very well.
Second, I THINK all midyear small block hoods were basically the same up near the firewall.
Third, for power brake 63s, I think I read on here the other day that the standard thumb screw top to the master cylinder was changed to a different, lower profile design that would clear the hood.
Fourth, on power brake 63s that were NOT Z06s, they still had the single piston master cylinder.
First, I don't know 63s very well.
Second, I THINK all midyear small block hoods were basically the same up near the firewall.
Third, for power brake 63s, I think I read on here the other day that the standard thumb screw top to the master cylinder was changed to a different, lower profile design that would clear the hood.
Fourth, on power brake 63s that were NOT Z06s, they still had the single piston master cylinder.
Pro
Joined: Mar 2007
Posts: 500
Likes: 3
From: Huntington Conn
The 64-7 style boosters will not fit under a 63 only hood. There is a rekief in the frames of all 64-7 hoods just above the booster shells joint.
In 64, the relief is added BUT one cannot use a dual master cylinder as the 65-7 hoods have an additional relief added in the cross brace of the hood frame where it passes over the top of the front of the cap on the dual units.
That relief is not there in 63 or 64 hoods. Be careful what outfit you are dealing with when asking for fitment advice. I know of one case where the customer was told to bend the brackets down so it would fit.
Scary.....................
In 64, the relief is added BUT one cannot use a dual master cylinder as the 65-7 hoods have an additional relief added in the cross brace of the hood frame where it passes over the top of the front of the cap on the dual units.
That relief is not there in 63 or 64 hoods. Be careful what outfit you are dealing with when asking for fitment advice. I know of one case where the customer was told to bend the brackets down so it would fit.
Scary.....................
Melting Slicks
Joined: Jul 2004
Posts: 2,460
Likes: 315
From: Scottsdale AZ
Melting Slicks
Joined: Feb 2007
Posts: 2,937
Likes: 163
From: OP Kansas
C2 of Year Finalist (appearance mods) 2019
I bought a conversion from CPP that was a booster and dual reservoir master cylinder. When I looked at the bracket I called them and told them it wouldn't fit. They told me it would and I was trying to use the wrong bolt holes. They told me I was to use the top 2 bolts on the master that was in the car and drill 2 new holes for the top ones on the new bracket.
I accepted this as fact, but I haven't put it in yet. If I have to alter my hood, I will be angry. If they don't take it back I'll try selling it on eBay or using just the master cylinder without the booster. I bought it about a year ago and never installed it. It makes me mad when a vendor gives you bad info because they don't know the differences between '63 and older mid-years.
I accepted this as fact, but I haven't put it in yet. If I have to alter my hood, I will be angry. If they don't take it back I'll try selling it on eBay or using just the master cylinder without the booster. I bought it about a year ago and never installed it. It makes me mad when a vendor gives you bad info because they don't know the differences between '63 and older mid-years.
Last edited by KC John; Nov 11, 2009 at 09:50 PM.
Thread Starter
Racer
Joined: Oct 2005
Posts: 430
Likes: 0
From: Marlow OK
Many thanks. The last thing I want to do is start the kabuki dance of replacing hoods, bending brackets and drilling holes. If anyone comes across a single kit that comes w/all the right stuff and it fits, pls advise. Thanks.
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