12-Pack Precision Blanchard-Ground Washers for Blue Thunder Intake Manifolds – 3/8” Bolt – Black Oxide Finish

Upgrade your intake manifold installation with this premium 12-pack of precision-machined washers, specifically designed for Blue Thunder intake manifolds that have been CNC-machined and spot-faced for exact bolt seating.

Unlike standard 3/8” washers, these washers feature a larger contact surface area, providing superior load distribution. This helps protect your aluminum intake manifold from distortion and ensures a secure, even clamping force across the flange.

Key Features:

• Designed for 3/8” bolts

• Compatible with Blue Thunder intake manifolds

• Hardened steel for maximum strength and durability

• Blanchard ground for exceptional flatness and precision

• Large contact surface for better load distribution vs. standard washers

• Black oxide finish for corrosion resistance and professional appearance

• Purpose-built for CNC-machined, spot-faced manifolds

Important Note:

These washers are not intended for use with manifolds that have not been CNC machined or spot-faced, as improper bolt seating may occur.

Ideal for high-performance engine builders and restorers who demand both function and precision. Don’t settle for generic hardware—get the correct fit and finish your Blue Thunder intake deserves.