Valve Cover Adapter Spacers 1997-Up GM LS EngineShaft Mount Roller RockersIncludes: (2) Adapter Spacers, Bolts, Spacers, and Retainers More rocker arm clearance than any other valve cover or adapter on the market! Will require a RTV sealer against cylinder headUse existing valve cover on top of adapterUsed to raise valve covers for valve train clearance. ICT Billet 551914 Valve Cover Adapter Spacers 1997-Up GM LS Engine Shaft Mount R. Valve Cover Adapter Spacers. 1997-Up GM LS Engine. Shaft Mount Roller Rockers. Includes: (2) Adapter Spacers, Bolts, Spacers, and Retainers. More rocker arm clearance than any other valve cover or adapter on the market! Will require a RTV sealer against cylinder head. Use existing valve cover on top of adapter. Used to raise valve covers for valve train clearance. Around here, we don’t just sell parts – we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business – but grease, fuel, exhaust, power, and speed are what we live for. Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.