Valve Spring Tester, 0-600 lbs/in. Range, Adjustable, Each

Check valve spring pressure with the cylinder heads on the engine.

You don't have to take your valvetrain apart to check for valve spring pressure--not with these Proform cylinder-head mounted valve spring testers. They feature a fully adjustable arm to mount on the rocker arm that will measure valve spring pressure up to 600 lbs., making them great tools for the track.