Page 492 - 2021-22_EngineCatalogAP

GASKETS
Pontiac 326-455
Head Gaskets
Intake Gaskets
Application
Gasket Bore
Thickness
Cometic MLS
Fel Pro / Fel-Pro OEM
389/400/421/428/455
4.160"
.040"
CAGC5711-040
—
389/400/421/428/455
4.200"
.040"
CAGC5769-040
—
389/400/421/428/455
4.300"
.039"
—
FEL1016
1958-79, 326-455, OEM Stock Replacement PermaTorque
4.300"
.039"
—
FEL8518PT †
389/400/421/428/455
4.300"
.040"
CAGC5712-040
—
428/455
4.380"
.040"
CAGC5846-040
—
† Fel-Pro OEM
Application
Port Dimensions
Thickness
Fel Pro / Fel-Pro OEM
Mr Gasket
Edelbrock
SCE Accuseal E
Mahle
326-455
1.17" x 2.30"
.060"
—
—
—
—
M77MS20101
326-455
Stock
N/A
FELMS9980
—
—
—
—
1972-79, 350/400/455, OEM Stock Repl.
Stock
Stock
FELMS90205 †
MRG502G, MRG5848 ††
—
—
—
1969-72, 400/455,
Ram Air IV, High-Output OEM Stock Repl.
Stock
Stock
FELMS90123 †
—
EDE7280
—
—
1965-79, 326-455, Exc. 400 Ram Air
1.14" x 2.06"
.062"
—
MRG502G, MRG5848 ††
—
—
—
1965-79, 326-455, 400 Ram Air
1.18" x 2.20"
.060"
FEL1233
—
EDE7280
—
—
1965-79, 326-455,400 Ram Air
1.18" x 2.20"
.062"
—
MRG503G
—
—
—
Modified Port
1.175" x 2.300"
.062"
—
—
—
SCE128105
† Fel-Pro OEM. †† Ultra-Seal gaskets.
Die-Cut Fiber/Graphite/Steel Core Exhaust Gaskets
Application
Port Size
Fel Pro
Taylor XX Carbon
Mr. Gasket
Edelbrock
Remflex
Mahle
326-45, All with Split Center
1.46" x 1.92"
FEL1424
—
—
—
—
—
1965-79, 326-455, Open Center Port
1.46" x 1.93"
—
—
MRG5920 †
—
—
—
326-455. Exc. 400. Ram Air, 455 HO/SD
1.53" x 2.00"
FEL1423
—
—
—
—
—
1965-79, 326-455, “D” Port
1.55" x 1.94"
—
TAY68041
MRG550G, MRG5921 †
—
—
—
326-455, Split Center Port
1.55" x 1.94"
—
TAY68041
MRG550G, MRG5921 †
—
REM12-001
—
1968-70, 400 Ram Air, 455 HO/SD
1.88" Dia.
FEL1436
—
—
EDE7281
—
—
400-455 Ram Air IV/SD/HO
1.875"
—
—
—
—
REM12-002
—
326-455, D-Port, .060", Steel Embossed
1.900"
—
—
—
—
—
M77MS19989
400-455, Ram Air/SD/Edelbrock, .060", Steel Embossed
1.875" Dia.
—
—
—
—
—
M77MS19990
326-455, 1958-79 D-Port, Header Apps.
1-1/2" x 1-15/16"
—
—
—
—
REM12-004
—
† Ultra-Seal gaskets.
Alloy Exhaust Gaskets
Valve Cover Gaskets
Application
Port Dimensions
Mr. Gasket CopperSeal
SCE Pro Copper
Fel Pro MLS
326-455, Exc. Ram Air/HO., Split Center Port
1.55" x 2.00"
MRG7171
SCE4128
—
400-455, Ram Air/HO, and Edelbrock Heads, Round Port
Stock
—
SCE4028
—
1963-79 326-455 with D-Port Heads
1.55" x 1.94"
MRG7418G
—
—
1968-74 400-455, Round Port
1.845" Dia.
—
—
FELMS90111
Application
Construction
Thickness
Fel Pro/Fel-Pro OEM
Mr. Gasket
Mahle
Edelbrock
1965-79, 326-455
Cork/Rubber
3/16"
FEL1622
MRG576, MRG5869 †
—
—
1965-79, 326-455
Cork/Rubber
1/4"
FEL1627
—
—
—
1965-79, 326-455, OEM Stock Repl.
Cork/Rubber
5/32"
FELVS50005C ††
—
—
—
326-455
Cork/Composite
1/8"
—
—
M77VS50823
—
326-455
Cork/Composite
1/4"
—
—
M77VS50824
—
326-455
Composite/Core
3/16"
—
—
—
EDE7590
† Ultra Seal gaskets. †† Fel-Pro OEM.
490 2021-22 ENGINE BUILDER CATALOG
PONTIAC V8 326-455