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Old 08-23-2024, 10:15 AM   #1
Saberscar223
 
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So the BTR pushrod broke

One of the pushrods that came with the BTR cam kit broke. My tuner said I should go back to the stock pushrods I kept, should I do that or go with another aftermarket brand?
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Old 08-23-2024, 12:25 PM   #2
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Do you know the exact length you need? I got some manton pushrods that were supposed to be 7.875, and they were 7.8750 on my caliper.
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Old 08-23-2024, 12:37 PM   #3
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Do you know the exact length you need? I got some manton pushrods that were supposed to be 7.875, and they were 7.8750 on my caliper.
Dang I don't build engines but I wouldn't think .0000 would make a difference.
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Old 08-23-2024, 12:50 PM   #4
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Do you know the exact length you need? I got some manton pushrods that were supposed to be 7.875, and they were 7.8750 on my caliper.
0 ten thousandths is intense
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Old 08-23-2024, 01:00 PM   #5
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I think .010 matters for something like the Johnson 2110r’s that have a desired preload of .035 +/- .010, but ls7 lifters and the caddy racing lifters are much more forgiving.
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Old 08-23-2024, 01:38 PM   #6
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They were 7.850
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Old 08-23-2024, 02:11 PM   #7
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Do you know the exact length you need? I got some manton pushrods that were supposed to be 7.875, and they were 7.8750 on my caliper.
I am putting 7.87500 in my next build.

-Geoff
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Old 08-23-2024, 02:15 PM   #8
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It would be important to know why the pushrod broke? It is more common to bend one than break one.

The size speced and etched on the side of a pushrod is generally what is known as "gauge length" and will rarely match what you measure on a caliper.

Post pictures of your broken push rod. You need to measure for proper pushrod length in order to determine the size you need.
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Old 08-23-2024, 02:25 PM   #9
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I am putting 7.87500 in my next build.

-Geoff

Every little bit matters it seems.

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Old 08-23-2024, 03:53 PM   #10
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They were 7.850
Did you come up with that number by measuring or is that just what came with your cam kit. It would be wise to measure again since one broke.
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Old 08-23-2024, 04:45 PM   #11
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It’s what the cam kit came with.
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Old 08-23-2024, 08:28 PM   #12
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What lifters are you running? I would definitely measure pushrod length.
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Old 08-23-2024, 11:02 PM   #13
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The BTR lifters
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Old 08-24-2024, 02:14 AM   #14
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BTR doesn’t make lifters. I bet you are thinking of the BTR packaged Delphi LS7 style lifters. Regardless, I would measure pushrod length.
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