THESE PARTS WILL FIT ALL HT4100/4.1 Cadillac Engines 1982 -1984 CADILLAC ELDORADO/ SEVILLE / FLEETWOOD / DEVILLE THIS ITEM IS ONLY SOLD AS A FULL COMPLETE SET. THIS PURCHASE COMES WITH ALL THE PARTS AS SEEN IN THE PICTURE WITH ALL OF THE VAVLE COVER BOLTS INCLUDED, THE PUSH RODS- ROCKER SUPPORT ASSEMBLY - CHROME VALVE COVERS. BEFORE YOU ORDER PLEASE MAKE SURE THE PARTS FITS YOUR VEHICLE'S YEAR MAKE AND MODEL. THESE PARTS FIT ALL OF THE VEHICLES LISTED IN THE DESCRIPTION ABOVE. THE CUSTOMER IS RESPONSIBLE FOR ANY MISTAKES IN ORDERING THE WRONG PARTS, SO PLEASE MAKE SURE TO CONTACT CADILLIAC G's THROUGH EMAIL AND WE WILL MAKE SURE YOU ORDER THE RIGHT PARTS FOR YOUR VEHICLE.