I took the following from a stock unit that was replaced with a Lokar piece at a PCNC tech session a couple of years ago. These are the dimensions that really matter, as the tube length really isn't what is being measured here. Hope this helps -
STOCK DIMENSIONS
LENGTH OF TUBE BELOW THE RIDGE THAT BOTTOMS OUT ON THE ENGINE BLOCK = 9 15/16”
FULL MARK OF DIPSTICK IS 11 9/16” BELOW THE RIDGE
ADD MARK ON DIPSTICK IS 12 3/8” BELOW THE RIDGE
Larry
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