Stud Kit - Hi-Ram Intake Base GM LS1/LS3

The Stud Kit - Hi-Ram Intake Base GM LS1/LS3 by HOLLEY is an essential fastener assembly for builders and tuners working on high-performance LS engine platforms. This kit addresses a critical need: securing the high-ram intake manifold base to your LS1 or LS3 cylinder head with precision hardware that matches OEM specifications and withstands boost pressures and thermal cycling. Whether you're running a stock rebuild, forced induction upgrade, or naturally aspirated performance setup, proper fastener quality directly impacts intake manifold seal integrity and prevents costly vacuum leaks.

This stud kit is engineered for the specific geometry and clamping requirements of HOLLEY's high-ram intake design on LS1 and LS3 heads. Rather than relying on marginal OEM bolts, studs offer superior clamping force consistency and repeatability—critical when manifold gasket sealing depends on even load distribution across all mounting points. The kit includes hardware sized and hardened for the demands of LS engine operation, accommodating both atmospheric and boosted applications. Compact dimensions and modest weight make installation straightforward, fitting neatly within engine bay constraints while delivering the dependability expected from HOLLEY's reputation in fuel system and intake engineering.

Builders upgrading from factory intake manifolds to HOLLEY's high-ram platform benefit immediately from this stud kit during the swap. LS1 and LS3 owners pursuing mid-range or aggressive power builds—particularly those adding supercharging or turbocharging—rely on this kit to maintain manifold stability under pressure variations. Installation pairs with HOLLEY intake manifold gaskets and works within the precision tolerances that modern LS platforms demand. Stock your garage with this kit when planning any serious LS engine work to ensure that intake manifold security never becomes a reliability bottleneck.