Strokers

[Chris Barton <barton@xxxxxxxxxxxxx>]

Of course I probably should have added the Ole "Don't try this at home"
disclaimer, but the actual largest kit available for the ford 351 is a
439". they also have a 409". Super Ford magazine did a series of write
ups on the 426 kit when it first came out.(including a tear down
inspection at aprox. 10,000 miles) and everything looked perfect. That
motor was also subjected to over 100 dyno runs. I only drive the truck
maybe 5000 miles a year(if that) so I'am not too worried about premature
wear. the pistons, rods and Crank all all custom designed for the kit so
I think I've covered all my bases (as well as anyone could)

As far as milage, I went from about 12 to about 10 so not too shabby. I
run 35" BFG Mud TA's and Detroit Locker with 4.10's in the rear and can
spin them for about 25 feet (Broke the ring and Pinion about 3 months
after the conversion) so NO MORE burnouts! 0-60 is in the high 5/low 6
second range and so far I'am pretty happy. It probably wasn't really
worth the cost though, I got carried away and ended up dropping about
10k into the conversion (I had too much money last year...this years
back to normal...bummer) BUT I love the truck, I've had it for 10 years,
just painted it and I'am sure I'll keep it 10 more. 

Thanks for asking,

Chris Barton 
1995 540i/6
1989 Bronco, 426 Stroker, T.F.S.Heads, Edlebrock, F.M.S., (the list goes
on and on and on......)
1996 Yamaha RoyalStar, 2500 miles (For Sale)
2 Dogs & a Cat (what's that smell?)
SMILLER@domain.elided wrote:
> 
> Chris, lest anyone on the Digest get the wrong idea from your comment:
> 
> >Date: Thu, 14 Jan 1999 17:25:43 -0800
> >From: Chris Barton <barton@domain.elided>
> >Subject: Stroking
> >
> >For anyone wondering just how much addl. displacement you can
> >achieve through stroking....My 1989 Bronco has a 351 stroked to a 426.
> >Very streetable and 475ft. lbs. of torque.
> >
> >Chris Barton
> >1995 540i/6
> >1989 Bronco 426 Stroker (quicker than my 540!)
> 
> I'd like to add that, when stroking an engine, there are practical limits and
> there are physical limits, and they are different for each combination of
> block/crank/piston/connecting rod.  I'm know nothing about the physical
> limits of each design, so I'll let someone else comment on that.  BUT...  If
> the stroke is increased too much, it increases the maximum angle that the
> connecting rods achieve relative to the cylinder.  If the angle is extreme,
> it can cause excessive or premature wear of the cylinder walls.  In other
> words, it may work for a while, but you'll be needing to hone the
> cylinders, at minimum, a whole lot sooner than you might expect.  So the
> practical limits of the engine must be determined before you just go
> stroke an engine.  As with all car modifications, there are trade-offs.
> One should attempt to find the practical limits before undertaking the
> project.
> 
> I must say, though, that 475 lb-ft sounds awsome!  How's the gas
> mileage?
> 
> Scott Miller
> Golden Gate Chapter
> BMW CCA #44977

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