Hardware Kit - LT/LS Cooling Manifold

The Holley Hardware Kit – LT/LS Cooling Manifold (part number 97-162) is a complete water pump bolt assembly engineered for small-block Chevy LS and LT engine platforms. This is a genuine OEM fastener kit featuring hex head bolts finished in nickel oxide coating, designed to secure the cooling manifold assembly with the precision fit and corrosion resistance required for reliable engine cooling system integrity.

The nickel oxide finish provides superior corrosion resistance compared to plain steel fasteners, a critical consideration in LS/LT engine builds where moisture exposure and thermal cycling stress fastener longevity. Hex head design allows straightforward installation and removal using standard metric or SAE wrenches, and the fastener dimensions are matched to OEM specification for proper clamping load distribution across the cooling manifold flange. This kit weighs 1.45 pounds and measures 4.9 x 2.1 x 6 inches, packaged for convenient storage and inventory management.

Engine builders and LS/LT swap specialists rely on OEM-equivalent fastener kits like this to maintain cooling system reliability during builds and rebuilds. Whether you're assembling a performance crate engine, refreshing a stock cooling circuit, or replacing corroded fasteners in an existing manifold, this Holley hardware kit delivers the exact fitment and corrosion protection required for stable long-term operation.

This kit is compatible with small-block Chevy LS and LT engine families, which power everything from GM performance vehicles to custom hot rods and off-road builds. Having the correct fasteners on hand prevents delays during engine assembly and ensures every critical connection meets OEM standards for torque retention and thermal stability.