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Re: Alternative pistons and rods for V-8
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Home away from home
 
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Why this keeps coming up is beyond understanding. I'll go on record as stating "There is absolutely, positively no off-the-shelf piston which can be used in a Packard V8 without prohibitively expensive machining and balancing!" That's what I thought. Thanks for the clarification Jack!
Posted on: 2010/1/22 13:20
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Re: Alternative pistons and rods for V-8
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Home away from home
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How good or bad are stock off-the-shelf pistons from someone like Egge or Kanter? As compared to OEM for example. Just wondering.
Posted on: 2010/1/22 16:46
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Re: Alternative pistons and rods for V-8
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Home away from home
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How good or bad are stock off-the-shelf pistons from someone like Egge or Kanter? As compared to OEM for example. Just wondering. I would venture a guess that they're the same piston, both made by Egge. In that respect, not very good from what I hear.
Posted on: 2010/1/22 19:13
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Re: Alternative pistons and rods for V-8
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Home away from home
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THe REproduction piston topic has come and gone many times. According to various web site discussion groups the final analysis of REproduction Packard V8 pistons is that they are ONLY cast Al. NOT steel struted and perhaps other short comings.
The REpops are just fine for very lite duty engine use and are therefore ok for Pebble BEach and Meadowbrook crowd. NOT UP TO OEM SPECS! NOT suitable for modern demands nor any demands that would be considered reasonable for a 'modern' V8 engine which i believe the PAckard V8 IS. I've never used the REpop Packard V8 pistons. My claim is based on over 12 years of various discussion group analysis. IIRC it was HH56 that had significant REpop piston problems in his Carib. Among others.
Posted on: 2010/1/22 19:22
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VAPOR LOCK demystified: See paragraph SEVEN of PMCC documentaion as listed in post #11 of the following thread:f
https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=7245 |
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Re: Alternative pistons and rods for V-8
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Home away from home
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Someone correct me if i am wrong but it has been my understanding that the REpop pistons are available in SETS ONLY. AND SUCH SETS ALL IN THE SAME OVERSIZE! This presents a problem when only one cylinder needs to be bored or maybe only one cylinder needs to go out .010 more than the other 7.
Potentialy, one would have to buy as many as 7even different sets of pistons just ot get one set for one engine and left with many others setting on the shelf. Of course as soon as i say that some anal retentive type will start barking about how one should never mix piston oversizes in the same engine. Go tell that to Chrysler eng'ring.
Posted on: 2010/1/22 19:38
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VAPOR LOCK demystified: See paragraph SEVEN of PMCC documentaion as listed in post #11 of the following thread:f
https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=7245 |
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Re: Alternative pistons and rods for V-8
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Forum Ambassador
 
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The Kanter proposal that I put forth several years back that failed to find enough support was for pistons made to exact OEM specifications.
As to the Egge pistons, they may not be what the higher performance crowd wants or even what the rest of us would like to buy, but they are in regular use in many V8 Packards and have proven adequate for normal car driving and touring. The few problems I've heard of re cast slug pistons are second-hand and apparently the result of folks using Packard's original skirt clearance specs rather than those advised by Egge or the piston maker.
Posted on: 2010/1/22 19:44
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Re: Alternative pistons and rods for V-8
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As to the Egge pistons, they may not be what the higher performance crowd wants or even what the rest of us would like to buy, but they are in regular use in many V8 Packards and have proven adequate for normal car driving and touring. Define "normal". Normal for 99% of Packard owners is back out of the garage, drive onto trailer, back off of trailer, park for car show. In this sense, yes, they'll last, they never even get warmed up. Egge pistons won't stand up to what I consider "normal" driving, which is how everyone else drives their 20XX daily. Quote: The Kanter proposal that I put forth several years back that failed to find enough support was for pistons made to exact OEM specifications. That's because the price of those pistons would be as much or more than a forged piston and no one was willing to do that. I can't say I blame them. Quote: Someone correct me if i am wrong but it has been my understanding that the REpop pistons are available in SETS ONLY. AND SUCH SETS ALL IN THE SAME OVERSIZE! This presents a problem when only one cylinder needs to be bored or maybe only one cylinder needs to go out .010 more than the other 7. Most people when they rebuild an engine make all the bores match. Don't know about the machine shops in backwoods Kentucky, but here in Kansas they do.
Posted on: 2010/1/22 20:14
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Re: Alternative pistons and rods for V-8
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Forum Ambassador
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99% of Packards only go on and off a trailer? Boy are you out of touch. You need to get out and mingle in the hobby.
When's the last time you examined a set of Egge pistons that had been in a Packard engine for 45,000 miles? We've been over this topic time and time again, and there is nothing new. I'll sign off on this one.
Posted on: 2010/1/22 20:32
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Re: Alternative pistons and rods for V-8
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Forum Ambassador
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IIRC it was HH56 that had significant REpop piston problems in his Carib. Yes, this was several years ago but one piston had issues and almost seized. Damaged the cylinder and was lucky to get last few blocks home with it squeeking. Whether this was due to the piston or to improper clearances used, I cannot say for sure. I do know machinist was not impressed with the QC as they varied a bit in size, weight & finish but also think he might have used Packard specs for clearance and not the greater number several have mentioned being needed when using cast al pistons. I don't believe there was any paper other than an invoice that came with the pistons having recommended clearances so probably did use what was customary for OEM. Anyway, those pistons were pulled and engine bored oversize for Chrysler 413's. So far, those are fine but the car is not driven much--one of the trailer queens except mine is a driveway queen--so not a true test. Several have mentioned Egge QC has improved considerably since then.
Posted on: 2010/1/22 21:08
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