These Old Style 3-Bolt GM Chevy Motor Mount Plates are designed specifically for the traditional Small Block and Big Block Chevy engines that use the classic 3-bolt mount pattern. Precision laser cut from 1/4" high-strength plate steel, these mounts give builders a universal, weld-on solution for custom chassis, off-road rigs, hot rods, and engine swap projects.

By welding tubing or custom brackets directly to these plates, you can position your SBC or BBC engine exactly where you want it in your build, just like we do in our in-house Wide Open Design custom projects.

Includes:

• (2) Old Style 3-Bolt Chevy Motor Mount Plates (Sold as a Pair)

Specifications

• Material: 1/4" High Strength Plate Steel
• Overall Length: 4.50"
• Overall Width: 4.125"
• Hole Diameter: 3/8"
• Bolt Pattern: Old Style 3-Bolt SBC/BBC
• Cutting Method: Precision laser cut
• Condition: Weld-ready
• Sold In: Pairs
• Made in the USA

Fitment

• Designed to fit:
• Older Small Block Chevy (SBC) engines
• Older Big Block Chevy (BBC) engines
• Classic 3-bolt motor mount pattern
• Allows you to:
• Weld to DOM tubing or boxed chassis material
• Place the engine exactly where you need it
• Build your own custom mount setup

Tech Insight

These universal SBC/BBC mount plates make engine positioning simple by giving you a flat, laser-cut foundation that matches the original Chevy 3-bolt pattern. Builders commonly weld DOM tubes, boxed plates, or bushing cups to these mounts to fine-tune engine height, angle, and position. Laser cutting ensures bolt holes are perfectly centered and aligned for easy installation.