Depending on the tube size you can use for your shaft think of 55" overall length (crt/ctr) as the maximum for a gas engine. Maybe a bit longer but this is a good number to start with.


1953 Chevy 5-window 3100
In the Stovebolt Gallery
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Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain