Exhaust Manifold Flange Plate for Volvo B18 / B20 – 4 Cylinder Header Flange

Volvo B18 & B20 Exhaust Manifold Flange for Custom Header Fabrication

This exhaust manifold flange plate for Volvo B18 and B20 engines is designed for building a custom exhaust header or turbo manifold. Ideal for classic Volvo restoration, performance upgrades, motorsport builds, and turbo conversions.

Compatible with classic Volvo models equipped with the Volvo B18 and Volvo B20 4-cylinder engines, including Amazon, 140 series, and P1800.

Key Features

• ? Fits Volvo B18 engine

• ? Fits Volvo B20 engine

• ? 4-cylinder exhaust port configuration

• ? Precision-cut bolt pattern

• ? Ideal for 4-1 and 4-2-1 header designs

• ? Suitable for turbo manifold fabrication

• ? Perfect base for custom exhaust systems

Technical Specifications

• Product type: Exhaust manifold flange plate

• Engine compatibility: Volvo B18 / B20

• Material: Steel

• Application: Custom header or turbo manifold fabrication

• Mounting position: Cylinder head side

Why Choose This Volvo B18 / B20 Header Flange?

When building a custom Volvo B18 or B20 exhaust manifold, flange accuracy is critical. This flange provides:

• Proper alignment with the cylinder head

• Reliable exhaust gas sealing

• Strong structural base for welding header tubes

• Reduced risk of warping and leaks

Perfect for classic Volvo tuning, rally builds, vintage performance projects, and motorsport applications.