Performer Rpm Oldsmobile Small-Block For Hydraulic Roller Camshaft

Description

Intended for installation on 1965-1976 Small-Block Oldsmobile 350-403 c.i. engines equipped with a hydraulic roller camshaft, these 356-T6 aluminum casting cylinder heads (#61035) are a modern refinement to our #6051 heads, except they can accommodate a factory-style mechanical fuel pump. A smaller 68 cc combustion chamber achieves a more appropriate small block compression ratio compared to our PN 61025/61029’s larger 77 cc chamber, which yields a lower compression ratio than most engine builders desire on a small block engine. These heads require a 3.9375” minimum bore and feature a modern chamber design with optimized spark plug positioning. Maximum airflow is achieved through the factory 6-degree valve angle using high-flow 200 cc intake and 130 cc exhaust port volumes, along with 2.072” intake and 1.680” exhaust valve sizes in their O.E. positions. A finished deck thickness with added material above the intake port and pre-counterbored head-bolt holes for .5” diameter studs provide extra clamping force in key areas. A stud-and-guide plate valvetrain system (as opposed to the O.E. pedestal type) provides a solid foundation for the beefier diameter pushrods, and Helicoil inserts in the exhaust and rocker stud holes keep bolts secured. However, there are no provisions for a heat crossover. Although these heads will fit on Big-Block Oldsmobile engines, the 68-cc combustion chamber size is not ideal for a big-block application as it will raise compression. See PN61025 and PN61029 for big-block specific cylinder heads.

Edelbrock® LLC is one of the nation's premier designers, manufacturers, and distributors of performance and replacement parts for the automotive aftermarket. Our line of products includes camshafts, carburetors, crate engines, cylinder heads, engine dress-up kits, fittings, fuel injection, fuel systems, gaskets, ignition, intake manifolds, sensors, superchargers, thermostats, tools, turbochargers, valve train components, and water pumps. Edelbrock is a proud member of the Edelbrock Group family of brands, including COMP Cams®, FAST® (Fuel Air Spark Technology), TCI® Automotive, Russell® Performance and Lunati Power®, representing over 130 years of performance. Headquartered in Olive Branch, Mississippi, Edelbrock focuses on the future with more innovative parts, creating more opportunities for our customers to go fast. For more information about the Edelbrock Group or any partner brands, visit www.edelbrockgroup.com.

When you design and sell the best-engineered performance products in the world, you have to have a rigorous testing program. Why? Without adequate testing, there's no way to stand behind your product with confidence. That's why every product we design and sell at Edelbrock is tested and approved by Edelbrock engineers in a real world environment on state-of-the-art equipment. Our three Super Flow computerized engine dynos are capable of measuring 11 separate engine variables up to speeds of 12,000 rpm. For 2007, we added a new Super Flow SF902 engine dyno. It's fully automated and programmable to simulate various driving situations, and is equipped with WinDyn software for the very latest in testing equipment. For real-world tuning, there's our Super Flow model SF-840 eddy-current chassis dyno that can handle up to 1,000 hp at the wheels and speeds of 200 mph. When all testing is completed, the results evaluated, and the part has passed all performance criteria, then, and only then, is the product deemed ready for production. These precise testing procedures are applied to the entire Edelbrock line for performance that's guaranteed. Edelbrock test vehicles are driven by Edelbrock engineers and employees to get a "real world" feeling for the performance improvements. Our products are also tested and used by professional race car teams and drivers. Working with these talented individuals is just another extension of our research and development process so when we say "proven performance" we really mean it! Top racing teams in all forms of motorsports rely on Edelbrock to produce parts that they can count on to win races and championships. Further underscoring our commitment to the racing community, Edelbrock is the only aftermarket intake manifold manufacturer licensed by NASCAR.

Fitment

This part fits the following vehicles.

• 1968-1972 Oldsmobile F85
• 1968-1975 Oldsmobile Vista Cruiser
• 1968-1977 Oldsmobile Cutlass
• 1968-1977 Oldsmobile Cutlass Supreme
• 1968-1979 Oldsmobile Delta 88
• 1968 Oldsmobile Delmont 88
• 1973-1976 Oldsmobile Omega
• 1975-1976 Buick Regal
• 1975-1976 Buick Skylark
• 1975-1976 Pontiac Ventura
• 1975-1977 Buick Century
• 1975-1977 Oldsmobile Cutlass Salon
• 1975-1977 Pontiac Grand LeMans
• 1975-1977 Pontiac LeMans
• 1975-1978 Buick LeSabre
• 1975 Buick Apollo
• 1975 Chevrolet Bel Air
• 1975 Chevrolet Camaro
• 1975 Chevrolet Caprice
• 1975 Chevrolet El Camino
• 1975 Chevrolet Impala
• 1975 Chevrolet Monte Carlo
• 1975 Chevrolet Nova
• 1975 GMC Sprint
• 1975 Pontiac Grand Am
• 1976-1977 Pontiac Grand Prix
• 1976-1979 Pontiac Firebird
• 1976 Cadillac Seville
• 1976 Oldsmobile Cutlass Tiara
• 1977-1978 Buick Riviera
• 1977-1978 Oldsmobile Toronado
• 1977-1979 Buick Electra
• 1977-1979 Buick Estate Wagon
• 1977-1979 Oldsmobile 98
• 1977-1979 Oldsmobile Custom Cruiser
• 1977-1979 Pontiac Bonneville
• 1977-1979 Pontiac Catalina

Features & benefits

• Maximum compatibility with OEM and aftermarket components
• Mechanical Fuel Pump Clearance Cutout
• Allows the use of an "OEM" style mechanical fuel pump
• OEM Port Locations
• Retains compatibility with OEM and popular aftermarket manifolds and Headers
• Factory 6-degree valve angle
• Edelbrock products offer improved performance and aesthetics for a broad array of vehicles and engines. 'Proven performance' is the philosophy by which Edelbrock was founded and it continues to this day with the highest standards for performance and quality. Edelbrock core products are engineered, manufactured, and tested in the USA to ensure the best quality possible. This is further backed by some of the best warranties in the industry and a highly qualified technical support staff.

Specifications

Warranty

12 Months

Videos and guides

Magnuson-Moss Warranty Act

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).