Best Fel Pro Performance Exhaust Manifold Gaskets in 2026

3" Pipe; Universal 3” Collector Flange, 3 Bolt Holes, 3-3/8" Bolt Hole Spacing, 2/Set

Heating and cooling of the exhaust system causes header and manifold flanges to warp resulting in gaps between the head and header which Remflex exhaust gaskets seal completely due to the thickness and compressibility of the 100 percent flexible graphite

Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

Matches the Stock Cylinder Head Port; AMC V8 - 304('70-'79), 360('70-'93), 390('70), 401('71-'76), Dog Leg Stock Port, Manifold or Headers, 2/Set

Heating and cooling of the exhaust system causes header and manifold flanges to warp resulting in gaps between the head and header which Remflex exhaust gaskets seal completely due to the thickness and compressibility of the 100 percent flexible graphite

Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

Remflex’s unique flexible graphite material has been proven for more than 30 years

1-7/32 inch width x 1-25/32 inch height Square End Ports; Mopar V8 - Magnum 318 ('92-'02), 360 ('93+), Square End Ports, Manifold or Headers, 2/Set

Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

1-9/16 inch width x 2-5/16 inch height Square Port; Ford V8 - FE 352, 390, 410, 428 (includes Tbird and Cobra Jet), Manifold and Some Headers, 2/Set

Includes Thunderbird 1961 - 1964

There are no rubber binders or composite materials in Remflex exhaust gaskets so they will not shrink or harden due to time or temperature eliminating the need to go back and continually retighten your flange bolts

Remflex’s unique flexible graphite material has been proven for more than 30 years

1-7/8 inch width x 1-3/8 inch height Square Port; Mopar V8 - 361, 383, 400, 413, 426 Wedge, 440, 1-7/8" x 1-3/8" square Port, Manifold or Headers, 2/Set

Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

See Part Number 6006 for 2-1/4" Pipe Flange; Mopar Exhaust Collector Gasket 2-1/2" Pipe, 2 Bolt Holes (One slotted) 3-29/32" Bolt Hole Spacing, 2/set

Heating and cooling of the exhaust system causes header and manifold flanges to warp resulting in gaps between the head and header which Remflex exhaust gaskets seal completely due to the thickness and compressibility of the 100 percent flexible graphite

Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

Remflex’s unique flexible graphite material has been proven for more than 30 years

1-15/16 inch width x 1-3/8 inch height D-Shaped Port; Mopar V8 - Hemi 370/6.1L ('05-'10), D-Shaped Port 1-15/16" x 1-3/8", 2/Set

Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

Remflex’s unique flexible graphite material has been proven for more than 30 years

4.0L (1990-1998) plus (Cherokee, Comanche and Wagoneer 1987-1990), 1(each), Heating and cooling of the exhaust system causes header and manifold flanges to warp

Remflex exhaust gaskets come in a standard 1/8 Inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

Reflex's unique flexible graphite material has been proven for more than 30 years

Fits Edelbrock Performance RPM Heads and Others

1-1/4 inch width x 1-3/4 inch height Square End Ports; Mopar V8 (Pre Magnum), 318, 340, 360 ('68-'92), Headers, 2/Set

Remflex’s unique flexible graphite material has been proven for more than 30 years

Port configuration comparable to Fel-Pro 1404/1405

Popular for aftermarket aluminum heads AFR, Dart and others

Fit type: Universal Fit

1-1/2" Round Port; Chevy V8 - 4.8L, 5.3L, 5.7L- LS1, LS6/6.0L- LS1, LS2 Vortec, 1-1/2" RP, For Weld Bead Headers, 2/Set

For use with raised weld bead headers; additional sealing material is provided around the weld bead to provide a better seal

Stock Port; Chevy L6 - OHV 216.5 ('37-'53), 235 ('50-'63), 261 ('55-'62), One Piece, Manifold or Headers, 1 (each)

Heating and cooling of the exhaust system causes header and manifold flanges to warp resulting in gaps between the head and header which Remflex exhaust gaskets seal completely due to the thickness and compressibility of the 100 percent flexible graphite

Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

1-9/16" Diameter Round Port; Chevy V8 - SB 262, 265, 267, 283, 302, 305, 307, 327, 350, 400, ('55 - '00), Round Port, Headers, 2/Set

Port configuration comparable to Fel-Pro 1426

There are no rubber binders or composite materials in Remflex exhaust gaskets so they will not shrink or harden due to time or temperature eliminating the need to go back and continually retighten your flange bolts

2 inch width x 1-7/8 inch height Irregular Shape Stock Sport; Chevy V8 - GMC BB 454/496/502 Gen. Mark (IV,V,VI),('91 and Newer), Manifold or Headers, 2/Set

For use with stock cast iron and GM Performance aluminum cylinder heads

There are no rubber binders or composite materials in Remflex exhaust gaskets so they will not shrink or harden due to time or temperature eliminating the need to go back and continually retighten your flange bolts

Remflex’s unique flexible graphite material has been proven for more than 30 years

1-1/8 inch width x 1-27 inch height Oval Port; Ford V8 - 289 ('63-'68), 302 ('69-'80), 1-1/8" x 1-27/32" Oval Port, Manifold or Headers, 2/Set

Remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

"1-7/8 inch width x 1-5/8 inch height square port; mopar v8 - indy 440 cylinder head, 1-7/8" x 1-5/8" square port, 2/set"

heating and cooling of the exhaust system causes header and manifold flanges to warp resulting in gaps between the head and header which remflex exhaust gaskets seal completely due to the thickness and compressibility of the 100 percent flexible graphite

remflex exhaust gaskets come in a standard 1/8 inch thickness and are designed to crush 50 percent allowing them to fill any pits or gaps in the flange surface up to 1/16 inch

Reflex's unique flexible graphite material has been proven for more than 30 years

Manifold or header applications

1-15/16 inch width x 2-5/32" Square Port; Ford V8 - 351 ('70-'74) Cleveland 4bbl Carb. (Includes Boss, High Output and Cobra Jet) Square Port, 2/Set