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AMC 401 Bore Recommendation |
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Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 6881 |
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The difference between a 0.020" over and 0.030" over ring for a 401 bore would be 0.033".
You remove about the same amount off the top ring if you used hypereutectic pistons. People are not checking and fitting rings for proper gap any more? Grinding or filing rings is not a big deal on bigger bores this close. 4" and under bores they say 0.010". The smaller the bore, the more critical the sprung radius, not the other way around. Or just buy 4.185" rings, pages of them: |
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DragRacingSpirit
AMC Addicted Joined: May/27/2009 Location: Mo Status: Offline Points: 903 |
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Any time I order custom pistons I always get an extra right and left.
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Best 1/4 mile 8.99, 1/8 mile 5.71, 60 foot 1.27, no power adders
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garland performce
AMC Apprentice Joined: Nov/19/2013 Location: sibley mo Status: Offline Points: 172 |
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4.185 pistons are available have ordered several sets
Good thing is you can get about any ring package They are .060 400 sbc rings Give me a call at the shop Monday-Friday 7-4 If I can help with your build 816-547-5695 John Garland owner of Garland Performance
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SC397
AMC Addicted Joined: Apr/30/2009 Location: Michigan Status: Offline Points: 5476 |
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Oops. My hairy eyeballs aren't working too well these days.
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amxron
AMC Nut Joined: Nov/18/2011 Status: Offline Points: 295 |
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You can get 428 Ford rings in most any oversize. I use .040's (4.17" in stock bore
390's). Ron.
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AMXron
Fleet/Jeep Mgr. Orbit AMC/Jeep 50-1787 |
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