These are the MOST gaskets for LS1/LS6 with aftermarket headers. These are separate spacers so you will need 2 of these. The ones that came with my headers were crap so I used them. Have used them before with great results. Revain has them in stock and at a great price.
RKX Vacuum Reseal Rebuild Gasket Replacement Parts
9 Review
Synthetic motor oil MOBIL SUPER 3000 X1 5W-40, 208L
61 Review
π§ Bapmic Engine Valve Cover with Gaskets & Bolts for BMW E82 E90 E70 128i 328i 528i X3 X5 Z4 (Part Number 11127552281)
9 Review
πͺ FEL-PRO VS 50569 R Valve Cover Gasket Set: Superior Performance and Durability
9 Review