86-95 Intake Manifold, 5.8L Box R Series With 90Mm Throttle Opening - Non Powdercoated Upper

Engine Block Style: Stock/OEM standard deck

Injection Style: Multi-port

Basic Operating RPM Range: 2,500-7,500

Intake Section Included: Complete

EGR: No

Injectors Included: No

Fuel Rails Included: No

Aftermarket Fuel Rail Required: Yes

Throttle Body Included: No

Throttle Body Bore Diameter: 90mm

Supplemental Bosses Cast-In: No

Supplemental Bosses Machined: No

Runners Included: No

Runners Removable: No

Plenum Material: Aluminum

Plenum Finish: Natural

Base Material: Aluminum

Base Finish: Natural

Quantity: Sold as a kit.

Box-R-Series EFI Intake Manifolds for 5.8L Ford:

Ideal for supercharged, turbocharged, nitrous, or general racing applications, Trick Flow's Box-R-Series intake manifolds for 5.0L/351W Ford engines feature a large plenum/short runner arrangement to maximize mid- and high-rpm power and torque. The lightweight aluminum upper includes an inlet for a high flow 90mm throttle body and comes with Trick Flow's R-Series lower manifold for maximum performance.

NOTE: For non-EGR engines. Requires a calibrated mass air or adjustable fuel injection computer, aftermarket fuel rails, and adjustable fuel pressure regulator.

Runner Configuration - Large Cross Section with 13.3" Runner RPM Range - 3500 to 8,000 rpm Throttle Inlet Diameter - 90 mm Port Size at Head - 2.0" x 1.2" Port size at Mating Flange - 2.38" x 1.38" Overall Height - 12.75" Upper Manifold Finish - Bare Lower Manifold Finish - Bare