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Author Topic:   off set grinding a crank benefits?
posted October 08, 2002 11:48 PM
what are the benefits of offset grinding a crank just wondering been hearing about guys having this done and just wondering what it does to the engine and ot the crank

posted October 09, 2002 10:45 AM
400's done the same way to create a 421.


posted October 09, 2002 04:58 PM
Drawbacks?? Average Cost??

posted October 09, 2002 06:49 PM
A few years ago, when I was building lots of Ford 5 liter engines for the biggy shorts Mustang crowd, an offset ground stock crank was one of my 'secrets'to a very strong running engine. If you are not a real good customer of the crank guy, he's probably gonna tack another $150 or so onto your bill. Drawbacks? Overlap is reduced, making the crank weaker, if all else is equal. However, if the crank guy knows his stuff, he increases the fillet radius, making the crank at least as strong, and probably stronger, than it was before you started grinding. Ford 302s can go to 316 or so, 351C's to 370(Screamers!). As far as I know, the only offset ground crank that I had done that failed was a SBC LG 327 forging that I had welded into a 3.39 stroke. Cost $1750, and cracked 3rd night out. OUCH! Luckily(I guess), it was in my own car.

posted October 10, 2002 04:48 PM
Thanks Monster!

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