Wow, thats a tough grind. Most grinders I've talked to would only go .090"
when offset grinding from large to small journal size.
John Beckett, LSR #79
----- Original Message -----
From: "Keith Turk" <kturk@ala.net>
To: "John Beckett" <landspeedracer@email.msn.com>; <LGMCAFEE@aol.com>;
<land-speed@autox.team.net>
Sent: Friday, February 18, 2000 9:07 AM
Subject: Re: cranks and pistons
> Actually a 2.90 crank most often is a 3.00 Large Rod journal crank ....
> Offset ground to a small Journal ...... That is a you start with a 2.100
> rod journal and grind , 100 off one side so to speak to create a 2.90
stroke
> Small journal Crank....
>
> If you stop and think a minute about this... the Crank Grinder isn't going
> to be your average guy... he needs to make sure the Crank is indexed
> correctly and so on.... I have one and the first time my Machinest saw
> it... His comments were.... well there is more then a Grand in Machine
work.
>
> Patterson Racing is a Well Respected Competition Eliminator Motor builder
> for NHRA drag racing.... and the rules fluxuate enough that some times
these
> little motors are out there reasonably Priced. I talked to them the other
> day in my search for a 280-285 stroke crank.... and NEW they cost $2700
for
> the best Patterson has to offer. Cheapest date.... was around $1400
>
> Keith
> ----- Original Message -----
> From: John Beckett <landspeedracer@email.msn.com>
> To: <LGMCAFEE@aol.com>; <land-speed@autox.team.net>
> Sent: Friday, February 18, 2000 7:40 AM
> Subject: Re: cranks and pistons
>
>
> > Larry
> >
> > Cranks with a stroke of 2.90" are custom made, not off the shelf, so
your
> > not likly to see them in typical advertising. Pistons, rods and crank
will
> > be easier to find 'off the shelf' if you use a 3" stroke. Your other
> > alternative is custom length rods.
> >
> > John Beckett, LSR #79
> >
> > ----- Original Message -----
> > From: <LGMCAFEE@aol.com>
> > To: <land-speed@autox.team.net>
> > Sent: Thursday, February 17, 2000 8:40 PM
> > Subject: cranks and pistons
> >
> >
> > > Hello list. I`m looking into getting a crank made with a stroke of
> 2.90.
> > > How is the best way to go about this for a chevy small block. I
haven`t
> > seen
> > > any cranks like this for sale in any of the performance books. Do they
> > have
> > > to weld up your old crank and turn it down to destroke? Also I called
JE
> > > piston company and they said it would be a special order item. Does
> anyone
> > > know of a company that would have 4.030 or 4.060 piston to be used
with
> a
> > 6
> > > inch rod and a 2.90 crank. Thanks Larry McAfee
> >
> >
> >
> >
>
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