Description

Valve Spring – V8 is a cylinder head valve spring for the Rover 3.5L and 3.9L V8 petrol engine.

The valve spring seats between the cylinder head and the valve spring retainer, maintaining constant pressure on the inlet or exhaust valve to hold it closed against the valve seat and ensure positive closure after each cam lobe has actuated the valve. Correct spring rate is essential for reliable valve train operation across the full engine speed range.