What level of modification is required to fit MACE MLS HEAD GASKETS HOLDEN ECOTEC L36 L67 SUPERCHARGED 3.8L V6 on VR V6 Buick 3.8L engine?

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• Is it recommended to use sealant when installing the MACE TIMING COVER GASKET KIT TO SUIT HOLDEN CALAIS VS VT VX VY ECOTEC L36 L67 S/C 3.8L V6
• Is it recommended to use any sealant or spray (such as Hylomar) when installing the MACE MLS HEAD GASKETS HOLDEN COMMODORE VS VT VU ECOTEC L36 3.8L V6?
• What torque settings should be used when installing MACE MLS HEAD GASKETS TO SUIT HOLDEN ECOTEC L36 3.8L Engine with ARP head studs?
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