RE: stroker pistons

[Steven Charette <stevec@xxxxxxxxxxxxxxxxxxxx>]

Bill,
	Sorry about the slow reply - this one got stuck in my "draft" box
yesterday.

	You'll need a special stroker piston - they have very short pin
heights are are specific to the combination.  I have actually been able to
reduce the crankshaft counterweights by .150-.200" to help the balance (not
have to add Mallory Metal) and it also helps clearance to the block.

	You should be able to find pistons ready-made for either the long or
short rod... I've heard that the long rod version supposedly makes more
power as in theory the piston dwells longer at the bottom of the stroke for
better cylinder fill (milliseconds at 6000rpm).  That would be a tough one
to quantify for sure!

	Diamond is making pistons for the 440 crank in a 383 (most stroker
pistons are for the 400 block).  Check out page 2 here--->
http://www.diamondracing.net/MoParSection.pdf

	The stroker 383/432" would be cool in a stock looking car - 440
torque in a 383 package!  The down side is that the 4.25 bore is the same as
the 426 wedge and the intake valves can hit the block, and in the best case
are shrouded by the cylinder wall.  The 400 block starts at 4.34" and with
just a .030 overbore provides another 1/16" all the way around.  I put heads
with 2.14 intakes on a 413 and had to do some serious hogging on the
cylinder wall (the 413 bore is another 1/16" smaller in diameter than the
383).

	Not sure what heads you've got but be sure to check the intake valve
to cylinder wall clearance.  Notching the cylinders is no big deal, but be
sure you know what you have for clearance.


SC

-----Original Message-----
From: William Harrison [mailto:bbjt3@xxxxxxxxx] 
Sent: Monday, November 16, 2009 6:03 PM
To: 1962to1965mopars@xxxxxxxxxx
Subject: stroker pistons


Hello out there in mopar land.

I am doing a stroker project over the winter and have been told that if I
put a 440 crank in my 383 and use 440 rods that I won't have to shave the
lobes on the crank for piston clearance.
Thats all well and good but what pistons will work with that combo as the
440 rod is 6.7 versus the 383 at 6.385.
Any help would be appreciated.

Thanks
Bill
65 Coronet 2 dr post.


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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!

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http://www.1962to1965mopar.ornocar.org/mletiq.html.