here we go again... does anyone make 3 7/8

[Bruce Lancaster]

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The 3 7/8 stroker mod was largely obsoleted when the new Merc crank in '49 allowed a cheap over the counter 4", and then 4 1/8 with the same labor as making the 3 7/8...
but stock car racer types with stroke limits frequently cut the big journal cranks concentrically (no change on stroke) in order to slightly cut friction, add a bit of safety, and lower weight of moving parts by using the small journal floaters. Just another old-timey mod trying to get the most with stock Ford parts and restrictive rules...