Does anyone know of a company that makes a 7.1 or 7.0875 long hardened pushrod? I know it is a odd length, but that is what it measured out to be.

Its for a SBC, zz4 block with the OEM lifters and Lunati OEM cam. Also using Trick Flow 195 heads and a .015 head gasket.

Does anyone know of a company that makes a 7.1 or 7.0875 long hardened pushrod? I know it is a odd length, but that is what it measured out to be.

Its for a SBC, zz4 block with the OEM lifters and Lunati OEM cam. Also using Trick Flow 195 heads and a .015 head gasket.
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Just curious but how the hell did you come up with 7,0875 :D

7.200 is the stock length for an OEM hyd roller
You can get the 7.100" from Manley, Trend, Manton, Smith Bros, Comp, Crane, Isky,,, about anywhere you care to call.
Be aware that not all pushrods are measured the same.
The actual measured end to end length will be about .015-.020 longer than the book length from most.

The stock one was 7.1875 end to end. I subtract .100 and got 7.0875. Maybe the stock pushrod was showing some wear?

The stock one was 7.1875 end to end. I subtract .100 and got 7.0875. Maybe the stock pushrod was showing some wear?
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As I said not all pushrods are measured the same.
You can call that a 7.200 pushrod or close enough. .0125 in pushrod numbers don't mean much,,,, especially with a hyd cam.
You end up with way more differences in running length with different adjustment procedures.

How do you know you need a -.100 pushrod?

I have a adjustable pushrod that I keep adjusting until I got the roller to ride in the middle of the valve stem while doing the marker test. The pushrod end up being a little more than 7 1/16 long. Kind of ended up halfway between the next 1/16. So I figured the closes would be 7.1.

I'm a novice, so more knowledge may be needed.

I have a adjustable pushrod that I keep adjusting until I got the roller to ride in the middle of the valve stem while doing the marker test. The pushrod end up being a little more than 7 1/16 long. Kind of ended up halfway between the next 1/16. So I figured the closes would be 7.1.

I'm a novice, so more knowledge may be needed.
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Hey,,, join the crowd,,, we all need more knowledge :D

Sounds like you did a reasonable job to me :thumbsup:
Get the 7.100's & you should be fine as you will be into the lifter travel some when you adjust the rockers.
If it were a solid you would probably want 7.050 from your description,,,

Thanks Wolfplace

Can you explain the phrase in reguard to lifter travel?

I made sure my rocker was all the way up and then finger tighten it down. I did not adjust the valve when doing the test. Should I of done this or does not make that much of a difference.

Thanks Wolfplace

Can you explain the phrase in reguard to lifter travel?

I made sure my rocker was all the way up and then finger tighten it down. I did not adjust the valve when doing the test. Should I of done this or does not make that much of a difference.
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You are welcome

This is a hyd correct?
When you adjust the rockers you are going to "push" the pushrod into the lifter 042"/ turn for a 3/8" stud & .050"/ turn with a 7/16" stud.
So, a half turn makes the pushrod seem about 20 thou & 25thou shorter respectively..
Again, not a big deal, just more pesky details :)

Also, I am assuming when you say finger tight you adjusted until the pushrod just lost any clearance, not until it got tight if these were new lifters,,,, it is very easy to adjust into the lifter travel with new lifters.
And the lifter was on the base circle of the cam

Yes, it is a Hyd. roller.

I understand what you mean. That 20 thou or 25 thou will not make any difference? If so, maybe a 7.150 would be better?

Right, I just screwed them down until all slack was taken out and I could not turn the nut with my finger anymore. Lifters aren't new. They have around 3000 miles on them. Motor has already been fired and has about 10 minutes on it. This all started on a double check of the pushrod length.