Cast Header Flanges
GM LT1/LT4/LT5 Engines

Are you looking to build your own custom headers for your Gen V LT1/LT4/LT5 engine?

Do you require a high strength, lightweight header flange? Do you want a unique design, one that sets the header apart from all others?

The distinctive Ultimate Headers investment cast Stainless Steel flanges are available separately to meet your need for a custom fabricated headers!

Because of the attention paid to creating not only the unique appearance, but to the physical properties, Ultimate Headers flanges are lighter than flat stock materials (mild steel & SS), are exceptionally strong and deliver excellent clamping forces to the cylinder head!

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