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290 pistons

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jonb79 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jonb79 Quote  Post ReplyReply Direct Link To This Post Topic: 290 pistons
    Posted: Sep/23/2011 at 4:52pm
Does anyone make or sell aftermarket 290 pistons?
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mramc View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mramc Quote  Post ReplyReply Direct Link To This Post Posted: Sep/23/2011 at 5:45pm
Per say they are not listed as 290 V-8 pistons, but the bore size is the same for 304 V-8s at 3.75 inches. If your rebuilding an engine you need to rebalance the engine any way and the different in block deck height and rod length is in the rod. You use a 290 rod for a 290 and a 304 rod for a 304, but the piston for all practical proposes are the same. So, look for a 304 piston instead of a 290 piston. Summit racing gives you 20 different choices, per say. LRDaum
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Post Options Post Options   Thanks (0) Thanks(0)   Quote purple72Gremlin Quote  Post ReplyReply Direct Link To This Post Posted: Sep/23/2011 at 6:33pm
Originally posted by mramc mramc wrote:

Per say they are not listed as 290 V-8 pistons, but the bore size is the same for 304 V-8s at 3.75 inches. If your rebuilding an engine you need to rebalance the engine any way and the different in block deck height and rod length is in the rod. You use a 290 rod for a 290 and a 304 rod for a 304, but the piston for all practical proposes are the same. So, look for a 304 piston instead of a 290 piston. Summit racing gives you 20 different choices, per say. LRDaum
And since the 304 has a different compression height, have you considered compression, quench,......just because the 2 engines have the same bore doesnt mean a direct fit...........just like a 343 and a 360.....LOL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote poormansMACHINE Quote  Post ReplyReply Direct Link To This Post Posted: Sep/23/2011 at 6:38pm
Didn't Egge have them?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 74Bubblefender Quote  Post ReplyReply Direct Link To This Post Posted: Sep/23/2011 at 6:41pm
We also sell custom forged 290 pistons in any compression.
We are just about to forge new AMC V8 crankshafts.. please check here
http://www.bulltear.com/forums/showthread.php?19564
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mramc Quote  Post ReplyReply Direct Link To This Post Posted: Sep/24/2011 at 11:03am
Ok, maybe your right when I went back and looked at the specs, but there not that much difference like 0.045 of inch or some thing like that, and Mr Bulltear has a some 290s , but you notice the word custom. Egge Machine most likely has them also. None of them is going to be cheap. LRDaum
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jonb79 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jonb79 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/24/2011 at 1:19pm
Yea I seen that, if I'm going to spend that kind of money maybe I'll think about getting a 390 or 401 to rebuild. I have a lead on a 290 thats reasonable but with the money I spend on getting the 290 to where I want to go might not be worth doing.
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Class Guy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Class Guy Quote  Post ReplyReply Direct Link To This Post Posted: Sep/24/2011 at 4:44pm
Mad Dog sells a 290 engine kit through their eBay store:
 
 
Maybe they sell the pistons separately.  Call them to see.  Maybe their pistons are from Egge.
 
Nylen used to make replacement pistons under their part number C311 and Perfect Circle had them.  Of course, so many of those small piston manufacturing companies have been bought up and consolidated that sources for pistons for that engine is verey limited.  I suspect the Egge pistons are manufactured by Badger,
 
 


Edited by Class Guy - Sep/24/2011 at 4:46pm
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SC397 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SC397 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/24/2011 at 7:59pm
I have a set of cast high compression +.040" over pistons for a 290 if you are interested.  The pin size is  .872 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pacerman Quote  Post ReplyReply Direct Link To This Post Posted: Sep/24/2011 at 8:01pm
Originally posted by Class Guy Class Guy wrote:

  I suspect the Egge pistons are manufactured by Badger,
 
 
I doubt that.  Egge machine made earned their reputation as a custom manufacturer of antique parts.  They cast many different types of pistions in their own aluminum foundary.  Joe
Happiness is making something out of nothing.
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