doyle1950, The 216 and 1956 261 do not share the same dipstick. To get down into the detail level for the dipstick on your 1956 261, it should have the dimensions listed in the snipped pic below taken from the other post screen capture. Hope this helps define what you need.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
