The Fel-Pro 2909 is a high-performance Rear Main Seal Set specifically engineered for racing and high-performance engine builds. It is designed to handle the extreme demands of professional racing environments, where standard seals might fail.

Key Specifications

• Application: Chevrolet V8 Small Block (specifically the 400 / 400 Race engines).

• Design: 2-Piece seal.

• Material: Premium Fluoroelastomer (often referred to by the brand name Viton). This material provides superior resistance to heat, oil, and chemicals.

• Housing Diameter: Fits 2.8406" – 2.8415" (specifically for blocks that have been align honed).

• Special Note: Also fits tall-deck "Rocket" blocks.

Features and Benefits

• High-Vacuum Performance: Specially designed to maintain a reliable seal even under high crankcase vacuum conditions, which is common in racing setups.

• Extreme Durability: Built to withstand high RPM levels and elevated temperatures that exceed standard street use.

• Repair-Focused: Like most Fel-Pro gaskets, it is designed for the "real-world" repair environment, meaning it excels on slightly imperfect sealing surfaces.

• Performance Grade: This is a "Performance" grade part (often listed under the GM Performance interchange) and is not intended for use in emission-controlled vehicles.