Destroke Offset grinding a Lunati 4.150 Fordged crank possible?
3 posters
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Destroke Offset grinding a Lunati 4.150 Fordged crank possible?
Would it be feasible for a Lunati 4.150 forged crank to be offset ground for less stroke and a 2.100 rod journal. If so will I be able to get a connecting rod and piston to work in a deck height of 10.315? I am upgrading the connecting rods and going to a bigger bore so I figure I might as well slow the piston speed down some more if possible. If not I will wait a little longer and order a billet crank with a custom stroke.
460pulling- Posts : 249
Join date : 2012-07-23
Location : southwestern,pennsylvania
Re: Destroke Offset grinding a Lunati 4.150 Fordged crank possible?
Are you cid limited?
cool40- BBF CONTRIBUTOR
- Posts : 7313
Join date : 2009-08-31
Age : 53
Location : on the 1/8 mile dyno
Re: Destroke Offset grinding a Lunati 4.150 Fordged crank possible?
No. Just wanting to turn 8000+ and trying to make sure it lives a long happy life.
460pulling- Posts : 249
Join date : 2012-07-23
Location : southwestern,pennsylvania
Re: Destroke Offset grinding a Lunati 4.150 Fordged crank possible?
We turn our 4.375 stroke BBC's 8000+ every weekend without issue. I would think 4.15 would be fine.
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
Re: Destroke Offset grinding a Lunati 4.150 Fordged crank possible?
IMO....keep the 2.2 journal and stroke you have for that rpm. Now while you're changing rods go with the longest you can put in it and get the piston to go with it. I shift @ 7800 with 4.5 stroke.
cool40- BBF CONTRIBUTOR
- Posts : 7313
Join date : 2009-08-31
Age : 53
Location : on the 1/8 mile dyno
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