- Partially CNC Runners For Improved Flow
The Edelbrock #60917 Performer RPM NHRA Stock/Super Stock Bare Cylinder Head is engineered for classic Chrysler big-block engines from 1961 to 1979, including 361-440 cubic inch displacement applications. Crafted with precision at Edelbrock's U.S. facility, this cylinder head features advanced design elements aimed at maximizing performance and durability. Its highly efficient ports and modern combustion chamber shapes deliver improved throttle response and top-end horsepower, making it ideal for both stock and super stock racing scenarios. Cast and heat-treated at the Edelbrock Foundry, each head undergoes rigorous quality control to ensure superior strength and consistency. The inclusion of threaded inserts in rocker stud and exhaust bolt holes further enhances durability, while manganese-bronze valve guides paired with ductile iron valve seats contribute to longevity and performance consistency. These features set this cylinder head apart from competitors and ensure reliable operation under demanding conditions. Designed from scratch using the latest computer technology by Edelbrock’s expert engineers, this head optimizes airflow and combustion efficiency throughout the RPM range, enabling enthusiasts to achieve impressive throttle response from 1500 to 6500 rpm. The scope of compatibility includes a variety of Chrysler big-block models such as the 383, 400, 413, 426, and 440 cubic inch engines, with specific fitment for vehicles like the Plymouth PB300 and Dodge B200/B300 Vans from the early 1970s to late 1970s. This product is not carb-legal and requires carb acknowledgment, making it suitable for racing applications where high performance is prioritized over emissions compliance.
Features:
- Designed for Chrysler big-block engines 1961-1979, including 361-440 c.i.d.
- Advanced port design and combustion chambers for improved airflow and power
- Cast and heat-treated at Edelbrock Foundry for optimal strength and durability
- Threaded inserts in rocker stud and exhaust bolt holes for enhanced reliability
- Manganese-bronze valve guides paired with ductile iron valve seats for longevity
- Partially CNC-machined runners for improved airflow efficiency
- Optimized for throttle response from 1500 to 6500 rpm
- Suitable for NHRA Stock and Super Stock racing classes
- Includes necessary features for high-performance racing applications
- air_freight_prohibited:
- false
- not_carb_approved:
- true
- carb_acknowledgement_required:
- true
- ltl_freight_required:
- false
- prop_65:
- Y
- part_type:
- automotive
- epa:
- N/A
- regular_stock:
- false
- units_per_sku:
- 1
- Mod Category:
- Performance
- Mod Subcategory:
- Cylinder Heads
