GASKETS
Chevrolet Big Block 396-454 Intake Gaskets
Port Dimensions Thickness
Fel-Pro / Fel Pro OEM
Application
Brodix
Cometic
Mahle
Mr Gasket
Oval Port, Brodix DN-9 Head
2.020" x 2.741" .060" BROMG9001
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—
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Rectangular Port, without Upper Bolt Holes, Blocked Crossover
1.82" x 2.54" .120" 1.84" x 2.80" .062" 1.85" x 2.55" .062"
— — — — —
— FEL1275-5 — MRG425 — MRG121 MRG5817 † — MRG122 MRG5819 †
Rectangular Port, Dart Big “M”
Rectangular Raised Port, Blocked Crossover Rectangular Raised Port, Blocked Crossover
1.85" x 2.55" .125"
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Rectangular Port, Dart Big Chief/Brodix Big Duke 1.87" x 2.42" .062"
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— —
— SCE118101
Spread Port, Super-Duty Pontiac/Brodix Big Duke Heads Rectangular Port Chevrolet Race Block 5.000" Bore Centers
1.90" x 2.70" .060"
— FEL1249
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—
1.796" x 2.480" .030"
— FEL1223-4
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Universal Gasket, Outer Contour Is Pre-Cut, Trim to Fit, without Upper Bolt Holes No Port Holes .060" Rectangular Port, Aramid Fiber, Mark IV, Gen V, VI 1.750" x 2.500" .125" Rectangular Port, Mercury Marine 1050 , MLS 1.850" x 2.500" .051 Rectangular Port, Aramid Fiber, Gen IV 1.750" x 2.500" .060"
— FEL1290 — CAGC5649-060 — CAGC5649-125 — CAGC5821-051
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Rectangular Port, Dart Big Chief, Brodix Big Duke Heads Port Rectangular Port, Brodix, Pontiac Heads Rectangular Port, Merlin, Brodix BB1 Heads Rectangular Port, Merlin, Brodix BB1 Heads Rectangular Port, Merlin 3X, Dart 360, Edelbrock Victor Heads Rectangular Port, Merlin 3X, Dart 360, Edelbrock Victor Heads
1.875" x 2.425" .060" 1.920" x 2.700" .060" 1.80" x 2.530" .060"
— — —
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— M77MS20040 — M77MS20041 — M77MS20042
1.80" x 2.530" .120"
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— M77MS20043
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1.80" x 2.500" .060"
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— M77MS20044
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1.80" x 2.500" .120"
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— M77MS20045 — M77MS20046 — M77MS20054
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Blank Intake Gasket, Trim to Fit Rectangular Port, Dart Big Chief, Brodix Big Duke Heads
N/A
.060"
1.950" x 2.650" .120"
† Mr. Gasket Ultra Seal
Die-Cut Fiber/Graphite/Steel Core Exhaust Gaskets
Fel-Pro / Fel Pro OEM
Mr. Gasket Ultra Seal
Application
Port Size
Taylor
Mr. Gasket
Edelbrock Remflex
Cometic
BBC Round Port
2.156" round 2" x 1.875"
— —
— — — — REM2013 — — — — REM2030 — — — — —
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BBC Gen V & VI, Stock Square Port BB Chevrolet 396-454 (65-90) Stock Repl. Exhaust Manifold Gasket Set
Stock
FELMS90206
†
Stock Square Port X-Large Square Port
1.85" x 1.90" 2.09" x 2.09"
FEL1410
— MRG153 MRG5910 — — MRG5913
— REM2003 — —
— —
Round Port Round Port
1.750" 1.875"
— — — — REM2036
— TAY68019
— — — REM2002
Round/Most OEM Alum. Heads
1.94" Dia. 1.92" Dia.
FEL1411
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Round Port
— — —
— MRG152 MRG5911
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1965-90 Oval Port Round Port, MLS Round/Large Port
1.82" x 2.05"
— — — EDE7205
—
2.00"
— — — — — CAGC5349-030
2.13" Dia. 2.15" Dia. 2.43" Dia. 2.40" Dia.
FEL1412
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Round Port Round Port
— TAY68025 MRG152A MRG5912
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— — MRG5914
Prostock, Chevrolet Bolt Patten, Olds/Pontiac Head Large Round Port, Brodix Heads Large Round Port, MLS Marine, Gen IV, V, VI Engines
FEL1490 FEL1428
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2.40" 2.250" Stock
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— — — — — CAGC5251-030
FEL17440
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† Fel-Pro OEM.
252 2021-22 ENGINE BUILDER CATALOG
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