Anchor-Tight Locking Stainless Flexible Engine Dipsticks FORD 351W Product Description:

• Locking mechanism prevents expulsion of dipstick handle under pressure.
• Holds vacuum.
• Teflon®-lined stainless braided outer housing.
• E-Z to Read flexible inner dipstick measuring cable.
• NHRA accepted for use in all categories of competition!
• SCREW INTO PAN 5/8" - 18