[AMC-List] Forged steel AMC cranks

["Armand Eshleman" <aje1@xxxxxxxxxxxxxxx>]

I found a machinist that alters existing cranks by welding additional
material onto the rod journals in a strategic location using a submerged arc
method. Watched as he proceeded to drastically lengthen the stroke of a two
cylinder tractor engine. It was almost half the rod journal diameter. The
antique tractor pullers love their stroked engines too! He straightens the
cranks and machines them too. He has an induction hardening machine. Not
sure if that works on cranks. Any way I was impressed!
Wondered how well this would do on an AMC forged 390 or 401 crank. How much
displacement could a guy end up with??

Armand

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