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Many Feathers

1223 Posts

Posted - 20 Apr 2017 :  3:20:11 PM  Show Profile  Reply with Quote
Well this was a surprise today. Was re-lashing my valve train and found this on intake #8. Glad we found it when we did, replaced it and all is well except for some carb adjustments we need to do.

1975 TA - http://www.youtube.com/watch?v=aR86YT69yeY


363 Posts

Posted - 20 Apr 2017 :  4:47:23 PM  Show Profile  Reply with Quote
NOW you have to find out WHY!Tom
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923 Posts

Posted - 21 Apr 2017 :  05:08:52 AM  Show Profile  Reply with Quote
We always replace factory pushrods when we do a rebuild of any sort. Not sure if that is factory but for peace of mind go with thicker wall. After so many miles the original pushrods can be fatigued and should be replaced.

1969 Firebird 461, #62 iron heads, Comp roller, Performer RPM, Q-Jet Turbo 400 w/ Continental converter. GM 8.5" 10 bolt with 3:73 gears.11.50's@ 119+ MPH
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Sitting Duck

1457 Posts

Posted - 21 Apr 2017 :  08:18:36 AM  Show Profile  Reply with Quote
That's not bent,it's mangled. Did the engine run on "all 8" before checking the lash,or did this happen during the check?
Agree with Tom,I wouldn't even fire the engine till I knew what caused this.

71' GTO Original 400 M20 3.23 posi
13.95@102.1 MPH on street tires

Edited by - 67drake on 21 Apr 2017 08:56:40 AM
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