SB Chevy Vortec, Idle - 5500 rpm, Dual Plane, non-EGR, Black Finish

ED21163

21163

Performer manifolds are dual-plane, low-rise intake manifolds with a 180° firing order and patented runner design that you won't find in other brands. This patented design greatly improves torque over a wide rpm range for excellent throttle response, especially off-idle through the mid-range. Performers are ideal for passenger cars, trucks, 4x4s, tow vehicles and RVs. There are EGR and non-EGR versions available for most V8 and some V6 engines. Designed for the street rod and engine swap market utilising 262-400 cid Chevy V8s with 1996 and later Vortec (L31) cast iron or the Edelbrock E-Tec aluminium heads. Manifold has provisions for external water bypass and may be used on either Vortec blocks or 1995 and earlier blocks. No provision for exhaust heated chokes. Accepts both square-bore and spread-bore carbs and late model ck, alternator, HEI and air conditioning brackets. Black Finish Made in USA