on a vitos crank how can tell its a stroker off an eyeball view? no measuring... and can a stock stroke vitos require clearance in the cases, i believe only strokers may need that. any opinions guys?
eyeballing a stroker crank
- Thread starter melonBerry
- Start date
Easiest give away would be the blue stuffer blocks on the crank. A vitos +3 crank does require some small grinding/filing to clear the rod.Not always but most do.
Vito's now (and has been for a little while) making the stock stroke cranks with the stuffer blocks:
VITO'SBLASTERCRANKSHAFT...
So blue stuffer blocks are a dead giveaway that the crank is a vito's but not necessarily a stroker crank. If the crank is still inside the case you can find "indications" that it's a stroker (like part of the inlet or outlet ground away to fit the crank) but there's no surefire way to see without simply measuring the stroke. Now, if you have one on the shelf and can look at the end of the crankshaft you can "eyeball" for certain.
I'm going to use Prime's crankcase photo's to demonstrate here:
Look at the crank pin on the end of the throw. Stock pins are set just inside the "ridge" that runs around the outside of the throw itself:
Now look at the crankpin on the vito's +3 stroker, the same "ridge" is cut out a bit (you can see the shadow the best) where the crank pin is located 1.5mm farther out away from the center of the throw (for a total of 3mm extra stroke):
I got my eye on it to.. Yuuuuuuuup.
lol yup! but like i said why would the cases have a little clearance for a stock stroke vitos crank?
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