Remflex Exhaust Gasket for Chevy Small-Block V8 — Set of 2, 1-3/8" x 1-1/2" All-Graphite Square Port

Remflex 2006 is a pair of 100% flexible graphite exhaust gaskets designed to seal square port Chevy V8 heads and prevent leaks without rubber or composite binders.

This set of two Remflex 2006 exhaust gaskets fits classic Chevy small-block V8s and reproduces the stock cast-iron head port dimensions. Built for engines such as the SB 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400, these gaskets are made from pure flexible graphite so they remain compressible and resist shrinking, hardening or failing under repeated heat cycles. The 1-3/8" by 1-1/2" square-port profile matches the factory port size, making them suitable for stock manifolds, aftermarket headers and restorations that demand an OEM-style seal.

How do these gaskets prevent exhaust leaks over time?

Instead of layered materials or rubber bonds that can dry out, Remflex uses uniform flexible graphite that maintains its sealing properties through repeated heating and cooling. The material compresses to fill flange imperfections and returns to shape without delamination, reducing the need for repeated retorquing.

• 100% flexible graphite construction resists shrinkage and hardening
• Compressible thickness conforms to warped or uneven flanges
• Durable across many thermal cycles for long-term sealing

Will these gaskets fit my Chevy small-block engine?

The Remflex 2006 matches the stock cast-iron head port used on many Chevy small-blocks and is sized to the standard square-port opening. It’s intended for classic V8 applications where the head port measures approximately 1-3/8" by 1-1/2" and is compatible with factory manifolds or headers of the same spec.

• Designed for Chevy SB 262–400 small-block families
• 1-3/8" x 1-1/2" square port dimension mirrors OEM ports
• Works with either manifolds or aftermarket headers that match the port

How does Remflex compare with other gaskets like Fel-Pro 1404?

The 2006 Remflex port profile is comparable to Fel-Pro 1404 in shape and fit, but Remflex uses all-graphite material rather than layered composites. That difference gives Remflex a consistently compressible seal that resists the common failure modes of binder-based gaskets.

• Port shape comparable to Fel-Pro 1404 for direct-fit considerations
• All-graphite material avoids binder deterioration found in some competitors
• Engineered to maintain flange contact even if surfaces warp slightly

What are the installation and maintenance considerations?

Installation is straightforward: clean mating surfaces, align the gasket to the port openings, and tighten flange bolts to the manufacturer’s torque specs. Because the Remflex gasket resists shrinking and hardening, you typically won’t need to retorque the flange bolts as often as with binder-style gaskets.

• Clean and inspect head and manifold/header sealing surfaces before fitting
• Install with correct orientation and torque to factory specifications
• No special coatings required; compatible with standard exhaust assemblies

Who is this for: The Remflex 2006 set of two exhaust gaskets is for restorers, mechanics and performance enthusiasts working on classic Chevy small-block V8s who want an OEM-dimension square-port seal without rubber or composite binders. It’s a practical choice for stock rebuilds, header swaps and long-term leak prevention where reliable compressibility and thermal stability matter.