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Edelbrock part #27031 Performer EPS intake manifold is designed for 1986 and earlier 262-400 cubic-inch Chevys. Edelbrock's Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent throttle response. This Performer EPS intake manifold combines a modern runner design with a front mounted oil fill tube for those who want the vintage look of our Classic valve covers with no breathers. Includes Oil Fill Tube (not installed) and matching push-in breather cap. The Oil Fill Tube and Breather are also available separately as #4803. This intake manifold is optimized to deliver superior performance with Edelbrock square-bore Performer Series or Thunder Series AVS carburetors. This small-block Chevy manifold has a runner design that's "tuned" for peak torque at 3500 rpm on a 350-inch engine and it's ideal for power from off-idle to 5500 rpm. Dyno tests showed gains of 5 hp and 9 ft-lbs. of torque over the Edelbrock Performer intake manifold #21011 on a 350 Chevy. From 3000 to 4500 rpm, the increases averaged 5+ ft-lbs. of torque for more performance where you need it most. This manifold offers a polished finish for a brilliant shine and classic look.
WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
Installation Notes
Manifold ht: A-3.74", B-4.80"; Carb pad height: 4.27"; Carb recommendations: Edelbrock AVS2 or Performer Series 500-650 cfm.; For the heights of all Edelbrock manifolds, please visit the Manifold Reference Dimensions page. http://www.edelbrock.com/automotive/mc/manifolds/reference-dimensions.shtml; Port exit dimensions: 1.15" x 1.87".; Recommended intake gasket: Edelbrock #7201.; Use RTV sealant to properly seal end seals, such as Edelbrock High Temp Silicone sealant #1076, DO NOT USE END SEALS GASKETS.; Sealant must be used on intake bolt threads if the threads extend into lifter valley or coolant passage.; NPT/Pipe thread fittings require the use of Teflon tape or paste on threads to ensure proper seal.; DO NOT OVERTIGHTEN NPT/Pipe fittings, this may cause the aluminum to crack around the fitting boss. NPT/Pipe thread is a tapered thread.; Hardened washers Must be used with intake bolts to ensure proper torque and prevent galling of the aluminum.; Will not fit under stock Corvette hood.; Even though manifolds are compatible with EGR systems, this does not mean they are legal for use on emissions controlled vehicles. Check local laws for legality.; Proper installation is the responsibility of the installer. Improper installation will void your warranty and may result in poor performance and engine or vehicle damage.