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#1
10-05-2016, 12:00 PM
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Would you run this
I have some casting porosity on one cylinder. Would you run this like that. All Pontiac block bore is 4.350. thanks
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#2
10-05-2016, 12:12 PM
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What stroke and rod length you planning to run Carl? That would determine how far down the piston and rings will be pulled.
Bryan |
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#3
10-05-2016, 02:54 PM
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Not if the rings will be in contact with it.
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#4
10-05-2016, 04:13 PM
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I would run it. I would lightly hand sand with 600 grit just the edges of the pits. At the bottom of the bore it'll trap a little oil, but should be swept away long before tdc.
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#5
10-05-2016, 04:16 PM
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Have run worse rust pitting than that in a circle track engine with no ill effects, run it.
__________________
Brad Yost 1973 T/A (SOLD) 2005 GTO 1984 Grand Prix 100% Pontiacs in my driveway!!! What's in your driveway? If you don't take some of the RACETRACK home with you, Ya got cheated    
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#6
10-05-2016, 06:38 PM
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If that is a bore and on the ring path no. If on the skirt path yes. If it's something else?
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#7
10-05-2016, 07:22 PM
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How rusty on other side? I see rust shadows around the area. Could be weak there. If you have to sleeve I dont think you can get to same bore size.
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#8
10-05-2016, 08:02 PM
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Pressure test it!
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#9
10-05-2016, 08:39 PM
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Yes this is the bottom of cylinder bore. I'm going to check make sure rings are not sweeping by this. thanks for a reply's.
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#10
10-05-2016, 11:23 PM
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Quote:
__________________
Come take a ride http://www.youtube.com/watch?v=P7Y8Awfk2I0 2008, 2013, 2015, 2016, 2019 Central Il Dragway Mod track champion and 2015 IHRA Div 5 Mod champion 
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#11
10-06-2016, 06:38 AM
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PT it first and if it's good Ball hone it and run it!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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