Milled pads c heads
#1
Milled pads c heads
I bought these a few years ago, rebuilt. Stud holes are drilled out to 7/16 , question I have is the pads, they look like they were already milled for guide plates. Compared to my other heads that ridge is raised. I assume the springs are aftermarket also, he mentioned some brand. I'm going to take some measurements before using. Plan to run the cam below.
Pad
Lunati Voodoo Hydraulic Flat Tappet Camshaft and Lifter Kit Oldsmobile V8 Lift: .510" /.522"
Pad
#3
Louie,
I have a set of 7 heads I just did for a customer. The pads have not been milled. If you lay a straight edge across the valve cover rails the pad is exactly the same height.
I have a set of 7 heads I just did for a customer. The pads have not been milled. If you lay a straight edge across the valve cover rails the pad is exactly the same height.
#5
I messed with them last night, springs appear to be installed at 1.7, springs in the head and a pair of smaller double springs have low pressure, the taller 950 comp cams 1.9 have too much seat pressure of course at 1.7. I have a pair of edelbrock heads and getting close to just using them. It's entirely possible I'm doing something wrong since it's my first time trying to do this.
#6
If you are going to use the Comp springs you need to get rid of the rotators and use aftermarket retainers like the ones in my picture. Probably a good idea to get rid of them anyway on a performance application.
I just looked at a set of Edelbrock heads I have here for Tim ( https://classicoldsmobile.com/forums...height-143659/ ) and found out something interesting. Using the OEM GM valve height tool the valves in the Edelbrock head are actually about .065 taller than the tool ???? I had to put .065 shims under the tool on the valve cover rails to get it to clear the valve. So it looks like custom pushrods will be needed with them. Maybe Mark will chime in if he has used any of the Edelbrock heads.
I just looked at a set of Edelbrock heads I have here for Tim ( https://classicoldsmobile.com/forums...height-143659/ ) and found out something interesting. Using the OEM GM valve height tool the valves in the Edelbrock head are actually about .065 taller than the tool ???? I had to put .065 shims under the tool on the valve cover rails to get it to clear the valve. So it looks like custom pushrods will be needed with them. Maybe Mark will chime in if he has used any of the Edelbrock heads.
#9
Not sure what your post title has to do with springs but as mentioned throw the rotators away and use and check them with the right retainer.
Edelbrocks use a +.100 valve. Typical installed heights are around 1.850, apples to oranges.
Edelbrocks use a +.100 valve. Typical installed heights are around 1.850, apples to oranges.
#10
#12
Nice to know. These look pretty decent. They will need different springs because he is going with a hydraulic roller and the springs on the heads from Edelbrock are too light.
Thread
Thread Starter
Forum
Replies
Last Post
442b
Major Builds & Projects
12
February 18th, 2012 06:32 PM