Top Engine Rebuild Kit Brands: Rev Up Your Performance

Engine rebuild kits are essential for anyone looking to restore the performance of their vehicle's engine without having to purchase an entirely new engine. These kits typically include components such as pistons, gaskets, bearings, and timing chains, making them a cost-effective solution for engine maintenance and repair. With a variety of brands available on the market, choosing the right one can make a significant difference in the longevity and performance of the rebuild. To help you make an informed decision, we have compiled a list of the best brands for engine rebuild kits that provide both quality and reliability. Read on below to discover which brands made the cut and why they stand out.

Illustration of engine rebuild kits

Best brands of engine rebuild kits in 2025

Mahle

MAHLE is renowned as one of the best producers of engine rebuild kits, leveraging its decades-long expertise in internal combustion engine components. With a global presence and employment of 71,947 people as of December 2022, MAHLE supplies high-quality parts to over 140 vehicle manufacturers, including Audi, BMW, and Mercedes-Benz. Their products are tested under extreme conditions, such as in NASCAR, NHRA, and Formula 1, ensuring top-tier quality. MAHLE achieved sales of EUR 12.4 billion in 2022, with a 9.7% organic sales increase, and invested EUR 671 million in research and development. Their aftermarket products, including those under the Clevite and MAHLE Original brands, maintain the same quality standards as original equipment.

Comp Cams

Comp Cams is a leading producer of engine rebuild kits, particularly renowned for their high-quality camshafts. They are one of the few companies that maintain a significant stock of cam cores, even for less common engine families, such as the 351w, where they had plenty of grinds available in stock as of 2021. Comp Cams works with limited but reliable suppliers for their cam cores, addressing concerns about porosity and other casting issues. Their products are favored for their durability and performance, making them a go-to choice for engine rebuilds. Despite industry-wide supply issues, Comp Cams continues to meet demand with their extensive range of cam profiles.

Fel-Pro

Fel-Pro, a brand acquired by Federal-Mogul in 1998, is renowned for its high-quality engine rebuild kits, boasting a 60 percent market share and a remarkable 97 percent fill rate for its extensive range of over 8,000 part numbers. Founded in 1918, Fel-Pro has been a leader in automotive sealing technologies for 100 years, producing over 325,000 gaskets and 120,000 complete gasket sets daily. The brand's innovative products, such as the PermaTorque^® MLS head gaskets, have set industry standards. Fel-Pro's commitment to quality and performance is evident in its proprietary materials and designs, including the iconic blue gasket materials and Blue Stripe^® design. The brand's Field Test Garage ensures real-world testing and validation of new gasket designs.

Enginetech

Enginetech is a highly regarded brand in the engine rebuilding industry, offering kits that meet or exceed original equipment (O.E.) specifications since 1982. Their engine rebuild kits are designed for convenience, with a single part number covering all necessary components, and they include superior consolidation of gasket sets. Enginetech's products are suitable for both import and domestic engines, and they are known for their dependability and quality. The company's rebuild kits are popular among budget-conscious rebuilders, with prices starting around $150 for a short block kit and $250 for a kit including a cam, lifters, and other components. Enginetech's commitment to quality and customer satisfaction has made them a trusted source for professional engine rebuilders.

Cloyes

Cloyes is a renowned leader in the automotive aftermarket, particularly esteemed for its high-quality engine rebuild kits and timing drive systems. With over 100 years of excellence, Cloyes has built a reputation among engine builders and technicians, offering more than 2,700 SKUs and serving over 300 customers. In a survey of nearly 5,000 Engine Builder readers, 48% named Cloyes as their top choice for timing components in 2020. The company's products are mission-critical for engine performance and are used in both high-performance and replacement applications. Cloyes continues to innovate, recently launching product lines such as timing chain kits with variable valve timing (VVT) cam phasers and timing chain water pump kits.

Seal Power

Sealed Power is a leading brand in the production of engine rebuild kits, renowned for its high-quality, application-engineered components. The company's replacement parts division, which generates 38% of its sales, includes a wide range of engine components such as pistons, piston rings, engine bearings, and oil pumps. These parts are designed to ensure unmatched performance and reliability, making them a trusted choice for professionals in passenger car and light truck rebuilds. Sealed Power's products meet industry standards and are engineered to accommodate repowering engines due to wear. With a strong focus on service tools and electronic diagnostic instruments, Sealed Power continues to be a world leader in the auto and heavy-duty industrial markets. For more details, visit Sealed Power's official page.

DNJ Engine Components

DNJ Engine Components, with over 35 years of experience, is a leading provider of domestic and Japanese engine parts, including comprehensive engine rebuild kits. Known for their high-quality products, DNJ offers a wide range of components such as connecting rod bearing sets, crankshaft main bearing sets, and valve lifters. Their engine rebuild kits, like the EK167M, come with a 12-month or 12,000-mile warranty, ensuring reliability and customer satisfaction. DNJ's commitment to updating their product line for late model applications has made them a trusted name in the industry. The global engine components market, in which DNJ operates, is projected to grow at a CAGR of 1.4% from 2022 to 2031, reflecting the increasing demand for quality engine parts.

Edelbrock

Edelbrock is a renowned American manufacturer of specialty automotive and motorcycle parts, particularly esteemed for its high-quality engine rebuild kits. Founded in 1938 by Vic Edelbrock, the company has a rich history of innovation, including achieving one horsepower per cubic inch from a 283 cid small-block Chevy in 1958. Edelbrock's products, such as carburetor rebuild kits, are known for their precision and durability, making them a preferred choice among car enthusiasts. The company's commitment to quality is evident in its detailed kits, which include all necessary components to ensure a successful rebuild. Edelbrock's products are available through various channels, including their direct-to-consumer e-commerce website launched in 2018.

Melling

Melling is a leading manufacturer of aftermarket oil pumps and related engine parts, serving the global transportation industry with world-class engineering, product development, and distribution capabilities. With over 75 years of experience, Melling has established itself as a trusted name in the engine rebuilding sector, providing high-performance parts for both racing and street vehicles. The company operates 7 facilities worldwide, including 5 in North America, 1 in Mexico, and 1 in Europe. Melling's aftermarket division is noted for its excellent catalog accuracy and international distribution, making it a go-to supplier for engine rebuilders, warehouse distributors, and auto parts retailers. The company also warns consumers about counterfeit products, emphasizing the importance of purchasing from authorized distributors. For more details, visit their product page.

Clevite

Clevite is renowned as one of the best producers of engine rebuild kits, offering high-quality components such as bearings, pistons, and rings. Their products are often recommended by engine builders due to their stringent quality control and advanced technology, such as the tri-metal coating, which enhances longevity and performance. For instance, Clevite bearings are preferred over Glyco bearings in many cases due to their superior quality and precision, with clearances measured to within 0.0003". These kits are available for various engine models, including Duramax and Cummins engines, and are often included in comprehensive overhaul kits by brands like MAHLE. The reliability and performance of Clevite components make them a top choice for both domestic and high-performance engine rebuilds. For more details on their offerings, you can visit the MAHLE official website.