Stroker 21 stud

[Pete]

Originally Posted by scooder

He can weld up and regains too four inch cheaper than grinding up a Merc crank? I wouldn't have expected that! Makes me start thinkin about four and a half inch strokers!
Martin.

4.5" welded cranks were quite common in the old days among the top drag racers. It was all that was available for practical purposes.
Depending on how much nitro was applied, they usually lasted about 10 to 15 runs.
I welded several for circle track engines running on gas and they never had any problems with them. I even made a 4.75 stroker once.
We welded diesel truck cranks every day and never had any problems with them.