Upgrade your Honda or Acura K-series engine build with the ARP 208-4701 head stud kit. Designed for select K20 and K24 engine applications, this ARP head stud kit helps improve cylinder head clamping force and head gasket sealing for performance street, all-motor, turbo, supercharged, and K-swap builds.
ARP head studs are a common upgrade when the factory head bolts are no longer ideal for higher cylinder pressure, increased compression, boost, or aggressive engine use. The 208-4701 kit uses premium 8740 chromoly material with a black oxide finish, 12-point nuts, and hardened parallel-ground washers for consistent load distribution and accurate torque readings.
This is a strong choice for K-series builders looking for reliable head fastener hardware for K20A, K20A2, K20A3, K20Z1, K20Z3, K24A1, K24A2, K24A4, K24A8, and compatible K20/K24 setups.
Features
- Genuine ARP cylinder head stud kit
- Part number: 208-4701
- Fits select Honda / Acura K-series engines
- Commonly used for K20 and K24 performance builds
- Premium 8740 chromoly construction
- Black oxide finish
- 12-point nuts
- Hardened parallel-ground washers included
- Thread-rolled after heat treatment for improved fatigue strength
- Helps improve head gasket sealing and clamping consistency
- Great for all-motor, turbo, supercharged, nitrous, and K-swap builds
- Sold as a complete kit
Vehicle / Engine Fitment
Common engine applications include:
Honda / Acura K-Series
K20A
K20A2
K20A3
K20Z1
K20Z3
K24A1
K24A2
K24A4
K24A8
K20 / K24 engine builds
K-swap applications
2002-2006 Acura RSX
2002-2005 Honda Civic Si EP3
2004-2008 Acura TSX K24A2
2003-2007 Honda Accord K24A4
K20 / K24 swapped Honda and Acura vehicles
Important Fitment Note
Confirm cylinder head, block, and engine code before ordering. Some K24Z applications may require different hardware or modification, please do not assume this kit fits every K-series engine.
What’s Included
- ARP head studs
- 12-point nuts
- Hardened washers
- ARP 208-4701 kit contents
Proposition 65 Warnings.
Cancer and Reproductive Harm. See details below.
Items that are not CARB Legal will not be sold and ship to California or CARB states.
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