1‑800‑243‑8355
Help
Contact Us
Free Shipping
Shipping Information
Manufacturer Rebates
How To Order
Payment Options
Return Policy
FAQs
Emissions Regulations
Gift Card Balance
Sponsorship Opportunities
Company
Request Catalog
OPGI Blog
Hours & Location
History
Frequent Buyer Points
Volume Discounts
Price Match Guarantee
Kit Swap Savings
Reviews
Careers
Clearance Sale
Archives
My Account
My Orders
My Wish List
As seen on
1978
Grand Prix
My Garage
14
View Garage
1978
Pontiac
Grand Prix
Shop Parts
Filter Search
1985
Pontiac
Bonneville
Shop Parts
Filter Search
1984
Buick
Grand National
Shop Parts
Filter Search
1951
Cadillac
Series 62
Shop Parts
Filter Search
1983
Chevrolet
Malibu
Shop Parts
Filter Search
1965
Pontiac
GTO
Shop Parts
Filter Search
1981
Oldsmobile
Cutlass
Shop Parts
Filter Search
1962
GMC
K15/K1500
Shop Parts
Filter Search
1950
GMC
New Design
Shop Parts
Filter Search
1970
Pontiac
Tempest
Shop Parts
Filter Search
1972
Chevrolet
El Camino
Shop Parts
Filter Search
1985
Buick
T-Type
Shop Parts
Filter Search
1984
GMC
K25/K2500
Shop Parts
Filter Search
1964
Cadillac
Eldorado
Shop Parts
Filter Search
Shop All Parts
+ Add Vehicle
Catalogs
Cart
Have a Question?
Ask our Experts
Mon‑Fri 8:00‑4:30 PT
Experts Offline
Interior
Door Handles & Hardware
Door & Window Handles, Door Hinges
Emblems
Reproduction, Aftermarket, Kits, Hardware
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gauges & Accessories
Gauges, Panels, Kits, Sending Units
Interior Accessories
Armrests, Carpet, Flooring, Consoles, Dash, Door, Glove Box
Keys & Locks
Hardware, Keys, Locks, Sets, & Switches
Mirrors & Hardware
Mirrors, Mounting Hardware
Exterior
Decals
Decals, Body Stripes, Misc
Emblems
Reproduction, Aftermarket, Kits, Hardware
Exhaust
Mufflers, Headers, Pipes, Mainfolds, Tips, Kits
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gaskets & Seals
Adhesives, Gaskets, Seals, Weatherstripping
Keys & Locks
Hardware, Keys, Locks, Sets, & Switches
Lamps & Lenses
Headlights, Lamps, Lenses, Bulbs, Hardware
Mirrors & Hardware
Mirrors, Mounting Hardware
Wheels & Accessories
Lug Nuts, Bolts, Studs, Wheels, Accessories
Body Parts & Trim
Bumpers & Hardware
Bumpers, Hardware, Inserts, Brackets
Convertible Tops & Accessories
Tops, Moldings, Boots, Hardware
Door Handles & Hardware
Door & Window Handles, Door Hinges
Mirrors & Hardware
Mirrors, Mounting Hardware
Moldings
Front End, Rear, Side, Window, Hardware
Sheet Metal & Body Panels
Doors, Hoods, Fenders, Quarter, Trunk, Floor, Armrest
Trunk Panels & Accessories
Mats, Dividers, Hardware, Accessories
Window
Glass, Motors, Regulators, Hardware
Suspension & Brakes
Brake Systems
Disc, Drum, Master Cylinders, Boosters, Pumps, Valves
Chassis & Suspension
Bushings, Mounts, Chassis, Steering, Suspension
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Engine & Drivetrain
Air & Fuel Delivery
Air Cleaners, Filters, Carburetors, Pumps, Tanks, Manifolds
Cooling & Heating
Air Conditioning, Controls, Fans, Motors, Cores, Radiators, Thermostats, Heaters, Pumps, Ducts
Decals
Decals, Body Stripes, Misc
Drivetrain
Differentials, Driveshafts, Chaines, Shifters, Transmissions, Bearings, Seals
Emblems
Reproduction, Aftermarket, Kits, Hardware
Engines & Components
Belts, Pulleys, Camshafts, Heads, Oiling Systems, Engines
Exhaust
Mufflers, Headers, Pipes, Mainfolds, Tips, Kits
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Fittings & Hoses
Fittings, Clamps, Brackets, Hoses, Lines, Plugs, Tubing, Valves
Gaskets & Seals
Adhesives, Gaskets, Seals, Weatherstripping
Ignition & Electrical
Alternators, Wiring, Horns, Starters, Distributors
Oils, Fluids & Sealer
Oils, Fluids, Grease, Lubricants, Grease, Cleaners, Sealers, Glues
Windshield Washer
Bottles, Pumps, Arms, Motors, Switches, Hardware
Audio & Electric
Gauges & Accessories
Gauges, Panels, Kits, Sending Units
Ignition & Electrical
Alternators, Wiring, Horns, Starters, Distributors
Mobile Electronics
Antennas, Radios, Speakers, GPS, iPod, Bluetooth
Tools & More
Books
Owners Manuals, Service Manuals, History
Car Care & Paint
Covers, Cleaners, Waxes, Polishes, Paints, Coatings, Dyes, Markers
Fasteners & Hardware
Bolts, Clips, Screws, Ties, Straps, Washer, Nuts
Gifts & Apparel
Shirts, Jackets, Hats, Plates, Garage Decor
Tools & Shop Equipment
Brake, Electrical, Engine, Fuel, Hand, Suspension, Wheel, Tire
×
We use cookies to ensure that we give you the best experience on our website. Click
here
for more information.
Got It
Bonus! Extended! ★
Free ground shipping $99 + up to 20% Savings - use code: USA250
Home
Grand Prix
1978
Engines & Components
1978 Grand Prix
Engine & Component
Categories
Accessory & Engine Mounting Brackets
Accessory Bolt Kits
Belts & Pulleys
Camshafts & Valvetrains
Cylinder Heads
Engine Assemblies
Harmonic Balancers
Oiling Systems
Rotating Assemblies
Tools
Valve Covers & Dress-Up Kits
1978 Grand Prix
Engines & Components
Filters
12
24
36
48
60
96
120
Relevance
Best Selling
A-Z ↓
Z-A ↑
Highest Price ↑
Lowest Price ↓
Newest Arrivals
×
Product Type
Aftermarket
149
Performance
477
Restoration
41
Part Type
Accessory Drive Belt
5
Accessory Drive Belt Pulley
8
Air Filter
1
Alternator
1
Alternator Bracket
2
Alternator Fan
2
Alternator Nut
1
Alternator Pulley
1
Assembly Lube
1
Auto Trans Dipstick
1
Automatic Transmission Oil Cooler Hose Adapter
1
Bolt
5
Bolt Kit
70
Cylinder Head Pliers
1
Drain Plug
1
Engine Block
7
Engine Block-Off Kit
2
Engine Bolt Kit
1
Engine Camshaft
129
Engine Camshaft and Lifter Kit
4
Engine Camshaft Degree Wheel
2
Engine Camshaft Thrust Button
2
Engine Complete Assembly
17
Engine Compression Test Gauge
1
Engine Control Module
3
Engine Crankcase Breather Cap
9
Engine Crankcase Breather Element
6
Engine Crankcase Breather Hose
1
Engine Crankcase Vent Kit
1
Engine Crankshaft Main Bearing Cap
5
Engine Crankshaft Main Bearing Cap Stud
6
Engine Crankshaft Pulley
8
Engine Crankshaft Pulley and Idler Pump Pulley Set
8
Engine Crankshaft Wiper
1
Engine Cylinder Head
27
Engine Cylinder Head Nut
1
Engine Cylinder Head Stud Girdle
2
Engine Dress Up Kit
17
Engine Firing Order Information Label
1
Engine Full Gasket Set
2
Engine Harmonic Balancer
12
Engine Long Block
4
Engine Mount
8
Engine Mount Set
2
Engine Mount Spacer
1
Engine Oil
1
Engine Oil Additive
2
Engine Oil Dipstick
5
Engine Oil Drain Plug
1
Engine Oil Filler Cap
3
Engine Oil Filler Tube
3
Engine Oil Filter
6
Engine Oil Filter Adapter Kit
1
Engine Oil Filter By-Pass Valve
1
Engine Oil Filter Cap
2
Engine Oil Filter Remote Mounting Kit
1
Engine Oil Pan
10
Engine Oil Pan Gasket
3
Engine Oil Pan Kit
2
Engine Oil Pan Stud
2
Engine Oil Pan Windage Tray
5
Engine Oil Pressure Sensor
2
Engine Oil Pump
11
Engine Oil Pump Drive Shaft
2
Engine Oil Pump Pickup Tube
1
Engine Pulley Kit
5
Engine Push Rod
3
Engine Push Rod Guide Plate
1
Engine Push Rod Length Checking Tool
1
Engine Rocker Arm
13
Engine Rocker Arm Adjusting Nut
1
Engine Rocker Arm Stud
4
Engine Stand
2
Engine Timing Chain Kit
5
Engine Timing Cover
6
Engine Timing Cover Gasket
1
Engine Timing Cover Stud Kit
1
Engine Timing Gear Set
1
Engine Timing Tape
1
Engine Valve Cover
32
Engine Valve Cover Bolt Kit
2
Engine Valve Cover Gasket
4
Engine Valve Cover Gasket Set
1
Engine Valve Cover Grommet
1
Engine Valve Cover Load Spreader
2
Engine Valve Cover Retainer
1
Engine Valve Cover Set
1
Engine Valve Cover Stud
2
Engine Valve Lifter
4
Engine Valve Lifter Guide Kit
1
Engine Water Pump Pulley
4
Exhaust Header
1
Exhaust Manifold Bolt
6
Fender Covering
4
Harmonic Balancer Puller
1
Ignition Timing Pointer
2
In-Car Computer
1
Multi Purpose Grease
1
Multi-Purpose Hardware
2
Non-Permanent Marker
1
Nut
3
PCV Valve
9
Power Steering Pump Bracket
1
Power Steering Pump Pulley Cover
1
Serpentine Belt Drive Component Kit
43
Serpentine Belt Drive Conversion Kit
22
Serpentine Belt Drive Solution Kit
1
Socket
3
Spark Plug Wire Holder
2
Thread Sealant
1
Wing Nut
2
Uncategorized
9
Category
Accessory & Engine Mounting Brackets
19
Accessory Bolt Kits
90
Belts & Pulleys
116
Camshafts & Valvetrains
175
Cylinder Heads
38
Engine Assemblies
31
Harmonic Balancers
17
Oiling Systems
70
Rotating Assemblies
19
Tools
13
Valve Covers & Dress-Up Kits
96
Price
$1 - $100
256
$101 - $200
57
$201 - $300
36
$301 - $400
52
$401 - up
266
New Arrival
New
11
Brand
AC Delco
3
Air Flow Research
12
ARP
36
Blueprint Engines
16
Comp Cams
161
CPP
1
Eddie Motorsports
78
Edelbrock
43
Energy Suspension
2
Fender Gripper
4
G Force Performance
2
General Motors
3
GM Performance Parts
20
Hamburger's Performance
1
Holley
6
K&N
3
Lokar
17
March Performance
18
Milodon
60
Mr. Gasket
3
NotcHead
14
Performance by OPGI
2
PML
1
RESTOPARTS
6
SCAT
10
TA Performance
5
Trans Dapt
13
UMI Performance
4
Weiand Performance
1
Review Rating
ooooo
ooooo
41
ooooo
ooooo
20
ooooo
ooooo
2
ooooo
ooooo
1
ooooo
ooooo
2
Not Yet Reviewed
601
ARP
Stud Set, Oil Pan, ARP, SBC, w/Standard 2pc Cork Gasket (SET)
3 Finish Options
ooooo
ooooo
From
$57.99
Mr. Gasket
Rocker Arm Clips, Mr. Gaskets, Oil Deflecting (SET)
ooooo
ooooo
$24.99
Milodon
Bolts, Timing Cover, Milodon, SB/BB (SET)
ooooo
ooooo
$12.99
Bolt Set, Fan Spacer Bolts, Allen Head, Long (SET)
2 Finish Options
ooooo
ooooo
From
$14.99
NotcHead
Bolt Set, Oil Pan, 1964-88 Chevrolet Big Block (SET)
ooooo
ooooo
$118.99
Milodon
Nuts, Head & Main Studs, Milodon, 10pc (SET)
2 Option Options
ooooo
ooooo
From
$53.99
Eddie Motorsports
Pulley System, SDrive, 69-79 Pont 326-455 11 Bolt W/P, 6-Rib, w/o Power Steering (SET)
7 Finish Options
ooooo
ooooo
From
$2,635.99
Eddie Motorsports
Pulley System, S-Drive, 69-79 Pont 326-455 11 Bolt W/P, 6-Rib, w/PS & Plstic Res (SET)
7 Finish Options
ooooo
ooooo
From
$2,805.99
Eddie Motorsports
Pulley System, S-Drive, 69-79 Pont 326-455 11 Bolt W/P, 6-Rib, w/PS, w/o Res (SET)
7 Finish Options
ooooo
ooooo
From
$2,805.99
ARP
Stud Set, Valve Covers, ARP, SBC, w/Stamped Steel Covers (SET)
4 Finish Options
ooooo
ooooo
From
$21.99
Bolt Set, Pan Cover, Hex Head, 700-R4/4L60E (SET)
6 Finish Options
ooooo
ooooo
From
$14.99
Eddie Motorsports
Pulley System, S-Drive, 69-79 Pont 326-455 11 Bolt W/P, 6-Rib, w/PS & Billet Res (SET)
7 Finish Options
ooooo
ooooo
From
$3,075.99
ARP
Bolt Set, Main Bearing, ARP, Buick 3.8L V6, Stage 1 (SET)
ooooo
ooooo
$67.99
NotcHead
Bolt Set, Intake Manifold, 1964-88 Chevrolet Big Block (SET)
ooooo
ooooo
$105.99
Eddie Motorsports
Pulley System, Raven S-Drive, 69-79 Pont 326-455 11 Bolt W/P, 6-Rib, w/PS, Billt (SET)
3 Finish Options
ooooo
ooooo
From
$3,328.99
Bolt Set, Fan Spacer Bolts, Hex Head, Long (SET)
4 Finish Options
ooooo
ooooo
From
$15.99
ARP
Stud Set, Rocker Arm, ARP, SBC, w/Roller Rockers (SET)
ooooo
ooooo
$72.99
Eddie Motorsports
Pulley System, Raven S-Drive, 69-79 Pont 326-455 11 Bolt W/P, 6-Rib, w/o PS (SET)
3 Finish Options
ooooo
ooooo
From
$2,915.99
ARP
Bolt Set, Main Bearing, ARP, SBC, Large Journal, 4 Bolt Main, 12 PT Head (SET)
ooooo
ooooo
$119.99
Eddie Motorsports
Pulley System, Raven S-Drive, 69-79 Pont 326-455 11 Bolt W/P, 6-Rib, w/PS, Plstc (SET)
3 Finish Options
ooooo
ooooo
From
$3,085.99
Eddie Motorsports
Pulley System, Raven S-Drive, 69-79 Pont 326-455 11 Bolt W/P, 6-Rib, w/PS, NoRes (SET)
3 Finish Options
ooooo
ooooo
From
$3,085.99
Edelbrock
Valve Covers, Edelbrock Signature, Chevy SB Perimeter Bolt, 2.8" Short (PAIR)
2 Finish Options
ooooo
ooooo
$65.99
ARP
Bolt Set, Main Bearing, ARP, Buick 3.8L V6, Stage 2 (SET)
ooooo
ooooo
$63.99
ARP
Stud Set, Main Bearing, ARP, 3.8L V6, 4 Bolt Main w/o Windage Tray (SET)
ooooo
ooooo
$148.99
Page 25 of 28 - 671 Items
«
23
24
25
26
27
»
Page 25 of 28 - 671 Items
«
23
24
25
26
27
»
Free Ground Shipping
Free Ground Shipping on orders over $99 in the contiguous United States.
Shop Clearance
Save up to 55% on huge clearance deals on hundreds of items.
Earn Points for Free Parts
Earn points for every dollar you spend with OPGI’s Frequent Buyer Rewards Program.
Price Match Guarantee
We’ll price match any currently advertised retail price offered by a retail competitor.
Select Your Vehicle
Find parts that fit your vehicle
GM Cars
GM Trucks
Make
Model
Year
Go