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1978 Oldsmobile 98 Engine Parts

Save up to 40% on original replacement 1978 Oldsmobile 98 maintenance and repair parts. Over 1,000 high-quality, direct-fit parts for a 1978 Oldsmobile 98, offered by well-known brands such as DORMAN, BWD, SEALED POWER. Find Brakes, Engine, Suspension, and many more car parts with our easy-to-use online catalogue.
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$2.13
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
1 Year Warranty
$2.13
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
1 Year Warranty
$2.13
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
1 Year Warranty
$11.66
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
Use: Timing Cover Use w/installation tool
1 Year Warranty
$11.66
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
Use: Timing Cover Use w/installation tool
1 Year Warranty
$53.12
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
Use: Timing Cover
1 Year Warranty
$53.12
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
Use: Timing Cover
1 Year Warranty
$4.33
$2.55
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
5 1/32" ID
1 Year Warranty
$4.33
$2.55
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
5 1/32" ID
1 Year Warranty
$4.33
$2.55
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
5 1/32" ID
1 Year Warranty
$0.91
$0.99
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
1 Year Warranty
$0.91
$0.99
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
1 Year Warranty
$0.91
$0.99
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
1 Year Warranty
$27.30
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
1 Year Warranty
$26.88
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
1 Year Warranty
$71.19
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Piston out-of-deck .026" - .032" 4.170" gskt. bore .010" thicker for use when block is refaced
1 Year Warranty
$101.30
$59.87
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Piston out-of-deck .018" - .025" 4.170" gskt. bore Standard thickness
1 Year Warranty
$2.78
$2.99
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
1 Year Warranty
$2.78
$2.99
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
1 Year Warranty
$2.78
$2.99
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
1 Year Warranty
$11.18
$11.88
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Type: Rear Main Seal Set Rope Improved design
1 Year Warranty
$11.18
$11.88
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
Type: Rear Main Seal Set Rope Improved design
1 Year Warranty
$11.18
$11.88
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
Type: Rear Main Seal Set Rope Improved design
1 Year Warranty
$21.19
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
1 Year Warranty
$21.19
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
1 Year Warranty
$48.55
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
1 Year Warranty
$148.24
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
Int. manifold gskt. not incl. Premium valve stem seals incl.
1 Year Warranty
$178.07
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
Int. manifold gskt. not incl. Premium valve stem seals incl.
1 Year Warranty
$120.19
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
Int. manifold gskt. not incl. Premium valve stem seals incl.
1 Year Warranty
$137.12
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
Int. manifold gskt. not incl. Premium valve stem seals incl.
1 Year Warranty
$72.97
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Type: Head Gasket Set w/o Head Gasket w/External EGR w/1 stud air cleaner Head gskts. & exh. pipe packing not incl. Premium valve stem seals incl.
1 Year Warranty
$12.15
$12.93
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
1 9/16" x 2 1/8" end ports
1 Year Warranty
$12.15
$12.93
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
1 9/16" x 2 1/8" end ports
1 Year Warranty
$12.15
$12.93
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
1 9/16" x 2 1/8" end ports
1 Year Warranty
$37.96
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
1 Year Warranty
$37.96
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
1 Year Warranty
$30.16
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
w/External EGR w/1 stud air cleaner
1 Year Warranty
$16.19
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
Cork
1 Year Warranty
$16.19
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
Cork
1 Year Warranty
$20.18
$21.43
In Stock
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Cork-Ply
1 Year Warranty