[DeTomaso] 351C Crankshaft Question

[tony DiGiovanna]

And...what's up with the SCAT center-balanced billet crank?

-----Original Message-----
From: detomaso-bounces at realbig.com
[mailto:detomaso-bounces at realbig.com]On Behalf Of tony DiGiovanna
Sent: Saturday, September 27, 2008 12:20 AM
To: Daniel C Jones; detomaso at realbig.com
Subject: Re: [DeTomaso] 351C Crankshaft Question


One more time on a common debate:  For a stock-displacement Cleve of 10:1
compression for occasional track and street use, do we prefer a stock crank,
cast steel crank, or forged crank????
Either way, I'm leaning for an internally-balanced set-up this time around.


-----Original Message-----
From: detomaso-bounces at realbig.com
[mailto:detomaso-bounces at realbig.com]On Behalf Of Daniel C Jones
Sent: Thursday, July 17, 2008 5:30 PM
To: detomaso at realbig.com
Subject: Re: [DeTomaso] 351C Crankshaft Question


> Does anyone know if this is a correct 351C crankshaft, or is it one of
those
> Windsor cranks that's been machined to fit a Cleveland, but require some
kind
> of spacer arrangement to mount the dampener?

It requires the snout spacer.  More importantly it is designed for 6" rods
so you won't have to turn the OD down to clear the piston skirts.  Many
of the Windsor with 351C main cranks are designed for 6.2" rods and
when used in a 9.2" deck block with 6" rods, there is a piston skirt
clearance issue which requires the crank OD be reduced which then upsets
the balance requiring expensive Mallory metal and labor.

The SCAT 9000 series cast crank is the only one that I'm aware of
that uses a true 351C snout and does not require a spacer.  The rest
of the SCAT forged steel cranks don't have the OD problem but they
do require the spacer.

Carrillo (via their K1 subsidary) is making 351C main forged steel cranks
in 3.5", 3.75" and 3.9" strokes.  They are designed for 6.125" rods and
internal balance (the Eagle and SCAT cranks are 28.2 oz-in external).
They do require the snout spacer and are $729 from flatlander last I
checked.

Dan Jones
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