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77J20page
AMC Fan Joined: Apr/17/2009 Location: new mexico Status: Offline Points: 8 |
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Posted: Apr/18/2009 at 10:05am |
I have a Jeep J20 with an AMC 360 in it. I have already done an intake carb and headers. Next i would like to rebuild the complete motor. I want to step the pistons up to around a 9:1 compression ratio, but i cant seam to find them. Any ideas on where to look well be helpful. Thanks |
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PHAT69AMX
AMC Addicted Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 5919 |
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Has been discussed in other threads. Choices are limited.
Custom forged is easy way but has significant cost.
Someone from the forums is now offering higher compression 360 pistons, not sure who.
Egge offers 343 pistons, same bore, that will increase CR, but compression height is less than ideal,
but they will work and raise CR. They are listed under RAMBLER on the Egge web page.
Run of the mill aftermarket 360 cast pistons have a large dish and shorter comp height.
A good cast 360 piston, good comp ht, good deck clear, good dish volume, good CR, aint easy to find.
imho a 1.601 compression height and about a 14cc dish will do the trick.
Wish I knew who from the forums was offering the new 360 pistons, Mike Obertnec ?
There was a thread a few months ago where it was being discussed. Edited by PHAT69AMX - Apr/18/2009 at 11:50am |
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77J20page
AMC Fan Joined: Apr/17/2009 Location: new mexico Status: Offline Points: 8 |
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Well that will at lest give me a place to start looking.
A friend of mine had a 401 built and the shop invoice said they used ?streling? pistons. I have never herd of them. I dose anyone know of them or where i can get informatuon abount then
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PHAT69AMX
AMC Addicted Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 5919 |
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As with most U.S.A. made parts, choices are dwindling from globalization and
systematic decimation of American manufacturing through strategic legislation.
Found this about closing down and sending offshore of Sterling Piston Co. same as Zollner.
Not sure about Badger Piston, they used to have a web site, further production was "iffy".
Understanding is most aftermarket cast 360 pistons are the 8.5:1 CR variety,
are approx. .020 shorter than stock, and require deck / head mill to obtain 8.5:1 CR.
imho the egge 343 slugs are "ok" even with the increased deck clearance at 9.5-10 CR.
But they approach $400 a set iirc and custom forged are around $800 a set.
A bore size must be selected on the egge site to get it to post a price.
Edited by PHAT69AMX - Apr/19/2009 at 11:38am |
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77J20page
AMC Fan Joined: Apr/17/2009 Location: new mexico Status: Offline Points: 8 |
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Wow!! I cant believe how hard it is to find parts for an amarican car that are made in amarica. I know AMC was never given the credit that it should have but i have always liked them. There are still alot of them out there to. I wish more people would look past the cost and just build and buy well made amarican parts. Not some outsorced knock off. |
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amcramblermarlin
AMC Nut Joined: Aug/16/2008 Status: Offline Points: 152 |
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Your pistons sir; http://www.performanceamstyle.com/Cart/description.php?II=913&sessid=94ebd80328528627885f3ba192a172b3&divi=amc
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Artisan
AMC Apprentice Joined: Aug/29/2009 Location: Monrovia, Ca Status: Offline Points: 13 |
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See what Matt has to offer at www.bulltear.com , not just pistons...
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Regards,
Artisan |
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