This intake is for you guys required to run the GM Phase 3 cast iron Vortec Bowtie heads. Fits head part numbers 25534421, 25534351, 25534431 and 25534371. The carb pad is raised to increase plenum volume and the runners are raised to increase airflow. 4000-8000 RPM Features the original 6-bolt pattern 7/8 inch of additional carb pad height
This intake is for you guys required to run the GM Phase 3 cast iron Vortec Bowtie heads. Fits head part numbers 25534421 25534351 25534431 and 25534371. The carb pad is raised to increase plenum volume and the runners are raised to increase airflow.4000-8000 RPMFeatures the original 6-bolt pattern7/8 inch of additional carb pad height
Edelbrock Performer intake manifolds are low-rise dual-plane designs with patented runner tuning and a 180 degree firing order that you won't find with the competition. This combination boosts torque over a wide rpm range from idle to 5 500 rpm. These manifolds also deliver improved throttle response over stock intakes.Stock/OEM standard deckDual plane - idle - 5 500 rpmNatural aluminum finishNon-EGR325-02114 Instructions (PDF)Notes: This intake manifold must be used with 1996 and later Vortec style cylinder heads (even if they are installed on pre-Vortec blocks). Accepts late model water ...
Designed for small-block Chevys with 4150 Series carburetors andVortec cylinder heads.They have a large runner cross-sectional area (3.2 square inches) and highly efficient cloverleaf plenum design. In dyno tests on a 358-inch small-block it made 10 horsepower more than the best competitor's manifold! Recommended Intake Gasket: GM #89017465