Fel-Pro Cylinder Head Bolt Set ES 72220 for GM & Isuzu V8 — Complete OEM-Style Fasteners

Fel-Pro ES 72220 is a complete engine cylinder head bolt set engineered to restore factory clamping and fit for compatible GM and Isuzu V8 applications.

This Fel-Pro bolt kit supplies the hardware you need when servicing or replacing cylinder heads on specified vehicle models. Manufactured to meet or exceed original equipment specifications, the set is built with application-specific design to match factory dimensions, thread engagement and finish so bolts torque and stretch as intended. Use the compatibility notes to confirm fit for your exact year, make, model, engine and trim before ordering.

Which vehicles does this bolt set fit?

The ES 72220 kit covers a range of late-model GM and Isuzu vehicles using these specific cylinder head fasteners. It lists multiple model years across Isuzu, Buick and Cadillac lines; always verify against your vehicle’s engine and VIN to be certain of compatibility.

• Fits 2004–2006 Isuzu Ascender models for listed years.
• Fits 2004–2007 Buick Rainier and 2008–2009 Buick LaCrosse/Allure where applicable.
• Includes fitment notes for 2004–2006 Cadillac Escalade ESV and certain 2007–2008 Cadillac models.
• Check the seller’s “Confirmed Fit” tool and qualifier notes before purchase.

How does this bolt set compare to original equipment?

Fel-Pro designs fastener kits to match OE form, fit and function. The bolts in ES 72220 meet or exceed OEM specifications for material strength, thread profile and finish so they deliver proper clamp loads when installed and torqued per manufacturer procedure.

• Manufactured to meet or exceed original equipment specifications.
• Application-specific design for correct length and thread engagement.
• Finish and material selected to resist corrosion and thread galling under normal service.

What should I check before buying and installing these bolts?

Always confirm exact compatibility using the vehicle information tool and any qualifier notes provided by the seller. Replace head bolts per the engine maker’s service manual—some are torque-to-yield and are single-use items that require replacement rather than re‑torquing.

• Enter year, make, model, engine and trim into the compatibility checker.
• Review the seller’s "Amazon Confirmed Fit" bar and any blue-circled notes.
• Follow OEM torque sequence and replacement guidance—do not reuse torque-to-yield bolts.

What’s included and why it matters for a head service?

The kit supplies all necessary cylinder head bolts that typically accompany a head gasket or head removal job. Using a correct, complete bolt set helps ensure uniform clamping across the head and reduces the risk of uneven loading or failure after reassembly.

• Complete set of cylinder head bolts sized for the listed applications.
• Supplies OEM-grade fasteners so the head clamp pattern matches factory expectations.
• Reduces downtime by eliminating the need to source individual bolts separately.

Who this is for: Professional mechanics and experienced DIYers performing cylinder head removal or replacement on compatible Isuzu, Buick and Cadillac engines who want an OEM-grade bolt kit sized and specified for those vehicles. If your engine uses torque-to-yield fasteners, this kit provides the correct single-use hardware; if unsure, consult the vehicle service manual or a certified technician to confirm bolt reuse policy and torque procedures.