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How do you determine the correct push rod length?

Old Feb 7, 2006 | 08:08 PM
  #1  
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doc
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From: Mims, Florida
Car: '87 IROCZ
Engine: 395 ZZ4
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt 3.70s
How do you determine the correct push rod length?

?
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Old Feb 7, 2006 | 08:10 PM
  #2  
12SecondTA's Avatar
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Car: 85' TA
Engine: 355 Carbed
Transmission: Built 700r4
use a pushrod length checker, available at most decent parts stores and all speed shops.
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Old Feb 7, 2006 | 08:30 PM
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From: Mims, Florida
Car: '87 IROCZ
Engine: 395 ZZ4
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt 3.70s
Well, I know that there is a push rod checker, but how do you perform the check, what do you look for?
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Old Feb 8, 2006 | 06:41 AM
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From: Austin
Car: 82 Z-28
Engine: 383 TPI
Transmission: 700R4
You try to find the rocker arm height that will produce the least amount of travel across the valve tip as it actuates the valve.


Varying the push rod length will vary the rocker arm height.
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Old Feb 8, 2006 | 07:50 AM
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
http://www.compcams.com/Technical/Cu...g/HTML/293.asp
http://www.compcams.com/Technical/Cu...ML/306-307.asp
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Old Feb 9, 2006 | 10:03 PM
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From: Mims, Florida
Car: '87 IROCZ
Engine: 395 ZZ4
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt 3.70s
Thank you, thats what I needed.
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