Product Description Specifications These gaskets are designed to provide a seal between the LSXR 102mm intake manifold and LS1, LS6 and LS7 cylinder heads. CARB: This product is not CARB Legal and not for sale in California Category: Engine Components>Intake Manifold Plenum Core: N LTL: N MPN: 146203-8 Proposition 65: Y Special Order: N