COMP Cams Valve Springs Nascar 927-12 Car Amplifiers Do I need adhesive or

Do I need adhesive or hardware to install these

270HR: Cam & Lifters

Order the right-side version if you need passenger-side coverage

2x -6 Inlet & -6 Return

COMP Cams Valve Springs Nascar 927-12 Car Amplifiers Do I need adhesive orCOMP Cams Valve Springs, Retainers 927 12 Dual Valve Springs from COMP Cams are manufactured from Super Clean wire and subject to extensive quality control testing to deliver a valve spring assembly with superior strength, durability and valve train stability, no matter what the application. The dual spring design creates a stronger valve spring that can easily handle the increased lift found in extreme stress applications. COMP Cams Dual Valve