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PY Online Forums - Bringing the Pontiac Hobby Together > BUY, SELL, TRADE Classic PONTIAC "PARTS" > Performance Parts For Sale/Wanted > WTB - .060" 389 pistons
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  #1  
Old 03-31-2020, 12:12 PM
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elefantrider elefantrider is offline
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Default WTB - .060" 389 pistons
What do you have?

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  #2  
Old 03-31-2020, 01:28 PM
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You can't use std 400 pistons?

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  #3  
Old 03-31-2020, 02:37 PM
tom s tom s is offline
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I think I got them from Egge when I rebuilt the 4 cyc engine.Tom

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Old 03-31-2020, 03:31 PM
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I need the early valve reliefs..
Looking for a set of used sealed power or used custom pistons.

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Old 04-03-2020, 04:18 PM
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Would some 4.180 bore domed pistons do you any good?

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  #6  
Old 04-03-2020, 09:36 PM
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4.18 bore is .060 for a 400.
I need 389 pistons.
Different valve pockets.

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Old 04-03-2020, 11:07 PM
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Quote:
Originally Posted by elefantrider View Post
4.18 bore is .060 for a 400.
I need 389 pistons.
Different valve pockets.
I know.... These are old custom dome forged pistons with the early valve reliefs..... I measured with a caliper at 4.174 (probably designed for a 4.180 bore) and came up with a 1.72 CH

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Old 05-22-2020, 09:53 AM
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Still looking

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