ARP Head Stud Kit — 247-4204
The stud kit that keeps a high-boost Cummins sealed. If you are adding boost, this is not optional hardware.
1998.5–2024 5.9L / 6.7L Cummins
Free shipping on orders over $199 — lower 48



2019–2024 RAM 6.7L
Converts the later 6.7L valvetrain away from the hydraulic roller setup that limits big-power builds.
Part number HC-FTC-1924
$3,399.00
The 2019+ valvetrain becomes a limitation once you start pushing real power and RPM. Hamilton Cams' flat tappet conversion addresses it at the source.
This is a specialist job and a specialist part. Talk to us before ordering — we will walk through what else the build needs to support it.
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Parts that are commonly ordered together, or that solve the next problem down the line.
Browse the catalogThe stud kit that keeps a high-boost Cummins sealed. If you are adding boost, this is not optional hardware.
1998.5–2024 5.9L / 6.7L Cummins
The lower-cost ARP stud kit for Cummins applications. Confirm your kit number before ordering.
Cummins head studs · confirm kit number by engine
Relocates the factory A/C lines so they are not in the way of a compound turbo setup.
Clears space for compound turbos · 2013–2018 6.7L

Call, email, or stop by the shop on North Orange Blossom Trail. Bring the VIN if you have it — we can confirm fitment on the spot and have the right parts ready.
Hamilton Cams Flat Tappet Conversion Kit
$3,399.00