Edelbrock Olds Head Bolt Kit - 8558

The Edelbrock #8558 bolt kit contain a complete set of the highest quality head bolts and hardened washers available. Cold-formed to ensure molecular integrity and heat treated prior to thread rolling and machining. Reduced diameter bolt heads eliminate the need for valve train removal to facilitate cylinder head re-torqueing. Hardened and parallel-ground washers are included. Rated at 170,000 p.s.i.

This Part Fits:

Year	Make	Model	Submodel
1965-1971	Oldsmobile	442	Base
1965-1974	Oldsmobile	98	Base
1965-1967	Oldsmobile	98	Holiday
1975-1979	Oldsmobile	98	Luxury
1973-1979	Oldsmobile	98	Regency
1971-1979	Oldsmobile	Custom Cruiser	Base
1975-1976	Oldsmobile	Custom Cruiser	Panel
1975	Oldsmobile	Cutlass	442
1965-1975	Oldsmobile	Cutlass	Base
1977	Oldsmobile	Cutlass	Colonnade
1976-1977	Oldsmobile	Cutlass	Colonnade S
1972	Oldsmobile	Cutlass	Cruiser
1965-1967	Oldsmobile	Cutlass	Holiday
1968,1971-1977	Oldsmobile	Cutlass	S
1967	Oldsmobile	Cutlass	Turnpike Cruiser
1976-1977	Oldsmobile	Cutlass	Vista Cruiser
1975-1977	Oldsmobile	Cutlass Salon	Base
1968-1977	Oldsmobile	Cutlass Supreme	Base
1977	Oldsmobile	Cutlass Supreme	Brougham
1976-1977	Oldsmobile	Cutlass Supreme	Colonnade
1974-1975	Oldsmobile	Cutlass Supreme	Cruiser
1975	Oldsmobile	Cutlass Supreme	Hurst
1976	Oldsmobile	Cutlass Tiara	Base
1967-1968	Oldsmobile	Delmont 88	Base
1967	Oldsmobile	Delmont 88	Holiday
1965-1979	Oldsmobile	Delta 88	Base
1967-1971	Oldsmobile	Delta 88	Custom
1965-1967	Oldsmobile	Delta 88	Holiday
1969-1979	Oldsmobile	Delta 88	Royale
1965-1966	Oldsmobile	Dynamic 88	Base
1965-1966	Oldsmobile	Dynamic 88	Holiday
1965-1966,1968-1972	Oldsmobile	F85	Base
1966	Oldsmobile	F85	Holiday
1965	Oldsmobile	Jetstar I	Base
1973-1976	Oldsmobile	Omega	Base
1976	Oldsmobile	Omega	Brougham
1976	Oldsmobile	Omega	F85
1975	Oldsmobile	Omega	Salon
1976	Oldsmobile	Omega	SX
1965-1966	Oldsmobile	Starfire	Base
1966-1974	Oldsmobile	Toronado	Base
1971-1978	Oldsmobile	Toronado	Brougham
1968-1970,1975-1976	Oldsmobile	Toronado	Custom
1966-1967	Oldsmobile	Toronado	Deluxe
1977	Oldsmobile	Toronado	XS
1977-1978	Oldsmobile	Toronado	XSR
1968-1975	Oldsmobile	Vista Cruiser	Base

Please note image may vary from product. Also some parts are special order, may take longer, and cannot be canclled. If delivery time is a concern, please contact us prior to purchase. 

Fidanza Performance is excited to offer the go to name in performance- Edlebrock!

About Edelbrock

Edelbrock was founded in 1938 by Vic Edelbrock Sr. in Los Angeles, California. Initially, the company focused on producing performance parts, with Vic's first major success being a high-performance intake manifold designed for flathead V8 engines. This innovation helped enhance engine efficiency and performance, laying the foundation for the company's reputation in the automotive aftermarket. Vic's love for racing also played a significant role in the early development of Edelbrock, as he designed parts to improve the speed and power of his own cars.

By the 1950s and 1960s, Edelbrock began to expand its product offerings, moving beyond intake manifolds to include carburetors, camshafts, and other components essential for performance cars. The company gained recognition in the burgeoning hot rod and drag racing scenes, particularly in California, where racing culture was rapidly growing. Edelbrock's products were highly regarded for their quality and performance, earning the company a loyal following among car enthusiasts and racers.

During the 1970s, the company solidified its position as a leader in the performance parts industry. With Vic Edelbrock Jr. joining the business, Edelbrock expanded its reach beyond racing into the street performance market, offering a variety of parts for muscle cars and street machines. The Edelbrock carburetor became a go-to choice for enthusiasts looking to boost engine performance, and the company continued to innovate, expanding its product line to meet the growing demands of car enthusiasts.

The 1980s and 1990s marked a period of continued growth for Edelbrock as the company advanced with cutting-edge technologies, such as the introduction of electronic fuel injection (EFI) systems and aluminum cylinder heads. Edelbrock was a key player in motorsports, supporting events in NASCAR, NHRA drag racing, and circle track racing. The company's emphasis on technological innovation helped it remain at the forefront of the performance parts industry.

In the 2000s, Edelbrock adapted to modern advancements in manufacturing, utilizing CNC-machining and computer modeling for greater precision in its products. The company also expanded its portfolio, delving into areas like superchargers, performance exhaust systems, and automotive electronics. As the market shifted, Edelbrock continued to develop high-performance parts to meet the needs of both racers and car enthusiasts.

In 2020, Edelbrock was acquired by Icahn Enterprises, a holding company controlled by investor Carl Icahn. Despite this change in ownership, Edelbrock has maintained its legacy as a trusted brand in automotive performance. The company continues to innovate with new products and technologies, ensuring that it remains a leader in the automotive aftermarket space.

Today, Edelbrock is a globally recognized name in the automotive performance industry. The company’s long history of innovation, dedication to quality, and commitment to performance has earned it a loyal customer base that includes racing professionals, car builders, and hobbyists alike. From its humble beginnings to its current standing as a giant in the performance parts world, Edelbrock’s legacy of excellence continues to shape the automotive landscape.

Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!