GASKETS
Oldsmobile 260-455 Oil Pan Gaskets Application
Mr. Gasket MRG490
Fel-Pro OEM
Mahle
Milodon
1964-76, 330-455
FELOS30471C † FELOS13419C †
M77OS32510
MIL40800
1964-82, 260-455, OEM Stock Replacement Cork-Rubber
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† Fel-Pro OEM
Overhaul Gaskets
Application
Fel-Pro OEM
Fel-Pro
Edelbrock
1965-76, 400/425/455, Full Gasket Set
FELFS8171PT-4 †
FEL260-1008
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1965-76, 400/425/455 Full Set, 1977-79 403 Full Gasket Set
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EDE7373 EDE7373
1965-76, Oldsmobile 403 1977-79, Full Gasket Set
FEL260-1104
† Fel-Pro OEM
Timing Cover & Water Pump Gaskets Part No.
Description
Fel-Pro OEM
FELTCS13417 †
1964-80, 330-455, OEM Stock Replacement, Blue Stripe Cork-Rubber
† Fel-Pro OEM
Rear Main Seals
Application
Mr. Gasket
Fel-Pro OEM
400-455 1965-76, 2-Piece
MRG1965 ††
FELBS13044-2 †
† Fel-Pro OEM †† 2-pc, silicone rubber seal
FASTENERS
Oldsmobile 260-455 Part No.
Description
Main Bolts ARP
ARP184-5001 ARP185-5001
High Performance 8740, 260-403, 2-Bolt Main Block, No Windage Tray High Performance 8740, 400, 455 2-Bolt Main Block, No Windage Tray
High-Performance Series fasteners are rated at 170,000 PSI. Main Studs ARP ARP184-5401
High Performance 8740, 350, 403 2-Bolt Main Block, No Windage Tray High Performance 8740, 400, 455 2-Bolt Main Block, No Windage Tray
ARP184-5001
ARP185-5401
Main studs feature a 190,000 PSI rating. Windage Tray Installation Stud Kit Milodon MIL81219
400/425/455, 2-Bolt Main, Windage Tray Studs with Stand-Offs, Kit
Connecting Rod Bolts ARP ARP184-6001
307-403 Small Block, High-Performance 8740 400-455 Big Block, High-Performance 8740 400-455 Big Block, High-Performance 8740, 2-Pack
ARP185-6001 ARP185-6021
ARP184-5401
High-Performance Series 8740 rod bolts are engineered with a 190,000 PSI rating.
472 2021-22 ENGINE BUILDER CATALOG
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