Holley 300-132 Single Plane Intake - GM LS1/LS2/LS6

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Carbureted single plane intake manifold. Fits all GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads Features: 2500-7000 RPM power band 4150 Square bore carb mounting flange (accepts up to 1.75" diameter throttle bores) Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM Minimum carb flange height - fits in vehicles with minimum hood modifications Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS power adder applications Efficient casting design - lightweight, consistent wall thicknesses, improved casting quality Weight - 11.5 lbs. Height (front) - 4.95" to the lifter valley cover flange at the engine block front flange Port size - 2.659" height x .918" wide Includes Viton?« intake to cylinder head O-ring gaskets - Viton?« is a registered trademark of DuPont Performance Elastomers Show more