Re: RE Pistons?

[Gary Pavlovich <glpavlovich@xxxxxxx>]

I guess the Poly engine is not "virtually all Mopar V-8's" as we made 425HP 
w/tuning out of our .090" overbore 318 Poly.

Gary Pavlovich
----- Original Message ----- 
From: "Gary H." <spigot2039@xxxxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx>
Sent: Monday, February 02, 2009 3:57 PM
Subject: Re: RE Pistons?


> Sounds reasonable. As pointed out by Don and Earl here, too. Thanks guys.
>
> Below is what I was thinking of that I read, advice by Rick Ehrenberg:
>
> "There's absolutely nothing wrong with this [413] engine, but there's also 
> no particular reason to use it. It weighs basically the same as a 440, and 
> you're giving up 27 cubes. And, no, it can't be bored to 440 cubes - at 
> least without weakening the cylinder walls significantly. And, as we've 
> tried to hammer home repeatedly, having strong, straight, and round 
> cylinder walls, that the rings can successfully seal against, will make 
> more HP than having another few inches of displacement - every time! The 
> maximum recommended overbore for virtually all Mopar V-8s is 0.040", but 
> if the bores will clean up at 0.020" - stop!"
> http://www.moparaction.com/Tech/questions/TRUCKIN.html
>
> There is no date on that Web page, so who knows when it was put up. 
> Perhaps his argument really was for "strong, straight, and round cylinder 
> walls" and so he de-emphasized the boring.
>
> Thanks,
> Gary H.
>
>
>
>
>
>
> -----Original Message-----
>
> > They said 0.060 was OK all day long on all B / RB blocks.  If I figure
> > correctly about 0.062 + /- is the difference in the 413 & 440 bore. 
> > Should
> > be no problem??  I have bored B / RB blocks out 0.063 and more for 
> > clearance
> > with NO problems.  Maybe I was just real lucky but the article seems to 
> > back
> > me up.  Just my II.
> >
> >
> >
> > Herb
>
>
> ----
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>
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----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html.