Whats the difference between the cosworth yb crank and a pinto crank?

Pinto has 6 bolt fixing for the flywheel
Cosworth has 9 bolts.
Both cranks are bullet proof if prepared properly but the 6 bolt crank needs a locating dowl or two if you intend to race it or go to 7500 to 8000 for long periods of time.
All the dimensions are the same

[Edited on 5/4/09 by snapper]

cosworth one is steel and has more flywheel bolts.

If you dowel the flywheel to a pinto one though then I'd like to see one break!

There's nothing much wrong with a std pinto crank other than the flywheel mount.

if i remember rightly i have 2 dowls in my pinto crank and my flywheel is only 3.68 kgs

then you'll be safe to a lot of revs as long as everything else is balanced.

7500 is certainly safe

and aswell as the above the cossie one has a 8mm longer nose (so more space for pulleys) and 2 short keyways instead of 1 long one



Alex, if your thinking about building a cossie from a pinto - don't do it, its cheaper to buy a whole cossie and rebuild it (4x4 one for preferance)
I found out the hard way

[Edited on 5/4/09 by mcerd1]