Hawks Motorsports offers our clients this 330-2801 GM Small Block Chevy 7/16" Flywheel Bolt Kit for Tilton Flywheel, 12-Point, ARP for Chevy V8 applications using a compatible Tilton flywheel. This Pro Series kit includes six 7/16"-20 x 0.875" underhead-length flywheel bolts with a flat 12-point head, black oxide finish, and no washers. The bolts use a 1/2" socket and are specifically designed for the Tilton flywheel application.

When you're bolting a Tilton flywheel to a small-block Chevy, this is exactly the kind of hardware you want to see going into the crank flange. Six properly sized ARP Pro Series bolts are a lot better choice than digging through the hardware drawer hoping something has the right thread and length. The larger-than-stock shank and flat 12-point head give a serious engine build the kind of purpose-built hardware that belongs behind a high-performance small-block.

ARP lists the 330-2801 as a Pro Series flywheel bolt for Chevy V8 engines with a Tilton flywheel. The bolts are forged from aerospace alloy, heat-treated before thread rolling and machining, and use a 7/16"-20 thread with a 0.875" underhead length. ARP's current catalog rates Pro Series flywheel bolts at 190,000 psi.

KEY FEATURES:

• ARP part number 330-2801
• Pro Series flywheel bolt kit
• Designed for Chevy V8 applications with Tilton flywheels
• 7/16"-20 RH thread
• 0.875" underhead length
• Flat 12-point head
• Uses a 1/2" socket
• Black oxide finish
• Chromoly construction
• Set of 6 bolts
• Washers are not included and should not be used with this kit
• Larger-than-stock shank diameter
• Designed to improve flywheel register
• ARP Pro Series 190,000 psi rating
• Forged and heat-treated construction
• Suitable for street, race, restoration, and performance engine builds

FITMENT APPLICATIONS:

Chevrolet Small Block V8

• Chevy V8 applications using a compatible Tilton flywheel
• GM Small Block Chevy applications where the crankshaft and Tilton flywheel accept 7/16"-20 flywheel bolts
• Commonly applicable to performance-oriented Small Block Chevy builds using Tilton flywheel hardware

Important Fitment Note:

This is not a universal Small Block Chevy flywheel bolt. ARP specifically identifies 330-2801 for Chevy V8 with Tilton flywheel applications. The correct bolt depends on the flywheel design, crankshaft flange, thread size, and required underhead length.

INSTALLATION NOTES:

• Kit includes six flywheel bolts.
• Washers are not included and must not be used with ARP 330-2801.
• Verify that the flywheel has adequate chamfer around the bolt holes to clear the radius beneath the ARP bolt head.
• Verify the flywheel is specifically compatible with the 330-2801 bolt configuration before installation.
• Bolts use a 7/16"-20 RH thread and have a 0.875" underhead length.
• Use a 1/2" socket for installation.
• ARP specifies Loctite 242 on the bolt threads and ARP Ultra-Torque Fastener Assembly Lubricant under the bolt head for installation.
• Install the flywheel and tighten the bolts hand-tight before final torque.
• Torque the bolts in an alternating or crisscross pattern to 85 ft-lbs using the lubricants specified by ARP.
• Do not substitute washers under these bolt heads.
• Verify crankshaft, flywheel, bolt diameter, thread pitch, and bolt length before installation.
• Test-fit the complete assembly before final torque.