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Pushrod length

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EBERSCHEID1031 View Drop Down
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    Posted: 14-July-2019 at 6:41PM
Hi all, new here. I have a question. Heres my build:
1968 390 +30
4.25 scat crank
Flat top mahle pistons
Hydraulic roller comp cam 234@50 .587 lift 112° seperation
Lunati hydraulic lifters link bar
Harland sharp rockers 
72cc edelbrock heads 
Performer rpm intake
I measured pushrod length tonight and got 8.33125
Leaving no threads underside of rocker allowing 2 threads of adjustment per harland sharp. Does this number seem right to anyone with a similar 445 stroker build???
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gregaba View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gregaba Quote  Post ReplyReply Direct Link To This Post Posted: 31-July-2019 at 3:24AM
Your length seems a little short. It does depend on how much head and block work was done.
I would get a good adjustable push rod and install it and get a correct measurement.
As much as push rods cost now you don't want to buy more then one set.
I would check each push rod because there is sometimes different length's for each push rod depending on your block.
Greg
Greg
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aquartlow View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote aquartlow Quote  Post ReplyReply Direct Link To This Post Posted: 31-July-2019 at 6:42AM
Also make sure the pushrod length is taken with the lifters internal plunger at about 1/2 it's travel, if the plunger has .060" travel you will want about .030" preload when the pushrods are installed. 
www.supermotors.net/22468
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