Hold Down Kit. See #10 tappet guide in second illustration. Tappet/Lifter Guide, Drill & Tap To Install, Drill & Tap Included. Without this stakedown kit installed, the exhaust side valve tappet guides (steel, part# C7262), will eventually work themselves out of the aluminum cylinder head & cause catostrophic & expensive damage to your cylinder head! We strongly suggest that you do BOTH exhaust & intake sides! This kit includes 6 plates & 12 bolts, enough to do both intake and exhaust. **SPECIAL ORDER - 7-10 DAYS DELIVERED!!** (NBM0001)
