Re: [FWDLK] 413 Chrysler with 8 to 1 Compression Ratio?????

[Curtis French <cmf392@xxxxxxxxxxx>]

.060 overbore would make a 413 a 426.  Probably would be safe absent serious
core shift.

Piston selection for 426 is just as bad as 413.

Those high $$$ max wedge boys can just go to JE or someone comparable and
have custom forged pistons made in whatever CR they want.  Not cheap,
though.

Rings can be a problem for odd bore sizes, too, but a 426 has the same bore
as a big block Chevy, so no problem there.

Hey, a low compression 413 is pretty cheap to build and will run pretty good
in a finned Mopar (I offer my own regular-gas 8.5:1 CR 413 Coronet as an
example).  But for the same money you can easily build a 10:1 440 that will
run better.  Maybe one day I'll find out how much better.

It all gets back to how much you want to spend, and how fast you want to go?

Okay, I'm done.
Curtis
59 Coronet
56 Belvedere

----- Original Message -----
From: "Bill K." <pontiac@xxxxxxxxxxxxxx>
To: <L-FORWARDLOOK@xxxxxxxxxxxxx>
Sent: Wednesday, October 22, 2003 8:21 PM
Subject: Re: [FWDLK] 413 Chrysler with 8 to 1 Compression Ratio?????


> Can you bore the 413 block to .060?  .030 will add about 6-7 CI, so you
need
> to go like .050 on it to get a stock 426 bore.
>
> Bill K.
>
>
> ----- Original Message -----
> From: "Ron Allyn Swartley" <Archangel1390@xxxxxxx>
> To: <L-FORWARDLOOK@xxxxxxxxxxxxx>
> Sent: Wednesday, October 22, 2003 8:08 PM
> Subject: Re: [FWDLK] 413 Chrysler with 8 to 1 Compression Ratio?????
>
>
> >
> >
> > Curtis,
> >
> >     You really did do your homework.!!!!!! I agree the 413 pistons are
not
> > readily available but I would hunt until I found them or punch the 413
out
> to
> > 426 and used their pistons. If the motor is being torn completely down I
> feel
> > that is the route to go. I feel if we talked to a guy with a 62 or 63
> Ramcharger
> > and he is rebuilding it he is not going to go to 8.1 CR.  However he may
> be a
> > little reluctant to tell us his sources.
> > Thank you for the additional information.
> >
> >
> >   Ron
> >
>
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