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ARP Pro Series Cylinder Head Bolt Kits

4.83 out of 5 stars 167 Customer Reviews

The Pro Series cylinder head bolts from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi. The Pro Series are also available with hex and 12-point heads. All kits come complete with hardened parallel washers for even load distribution and accurate torque readings.

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ARP Pro Series Cylinder Head Bolt Kits 223-3703

Made in the USA ARP Pro Series Cylinder Head Bolt Kits 223-3703

ARP Pro Series Cylinder Head Bolt Kits 223-3703

Cylinder Head Bolts, Pro Series, 12-Point Head, Buick, 3.8L, Kit

Part Number: ARP-223-3703

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

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Estimated Ship Date: Nov 24, 2025 if ordered today

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