1993-95 F-150 SVT Lightning SVE 170cc Cylinder Heads - 56cc Chamber 5.8 by SVE Special Vehicle Equipment ®

SVE Performance Cylinder Heads - 170cc
Increase horsepower and torque in your 1993-1995 SVT Lightning 5.8 with SVE performance 170cc aluminum cylinder heads. SVE aluminum cylinder heads are the perfect upgrade for your Lightning. Enlarged ports and valves provide more airflow for increased power, while the aluminum construction reduces weight compared to stock cast iron heads. The 170cc intake ports allow for 263 CFM max airflow at 0.60" lift and a 56cc combustion chamber size. SVE heads come fully assembled with 3/8" rockers studs, upgraded hydraulic roller valve springs, Viton valve seals, guide plates, machined bead valve locks, hardened spring cups, Manley steel retainers, and one-piece valves. Intake valves measure in at 2.02" and exhaust valves measure 1.60" big enough to flow all the air your Windsor engine would need. These stud mount heads are fully assembled and are finished off with a 3-angle valve job meaning that you will be able to bolt the cylinder heads to your short block for an effortless upgrade!

Why Buy SVE 170cc Cylinder Heads?

• Lightweight Aluminum - Constructed with A356 grade aluminum, SVE cylinder heads reduce engine weight significantly compared to factory cast iron cylinder heads, while providing better heat dissipation for improved performance.
• Upgraded Valve Springs - When upgrading the camshaft in your Lightning, your valve springs need attention. SVE cylinder heads have valve springs pre-installed that are rated up to .575" lift to handle the extra pressure.
• Fully Assembled - SVE cylinder heads arrive at your door fully assembled and ready to add your choice of rocker arms, valve covers, and other associated parts. 

Do I Need Anything Else For Installation?
While these cylinder heads can be installed on most Lightnings without the need for additional aftermarket parts, there are a few upgrades you may want to consider while you are upgrading your Heads.

• Valve Gasket Kit - Finish off the install of your new SVE Cylinder Heads with a fresh set of SVE short valve covers and rubber bonded valve cover gaskets. Also included in this kit is a new set of valve cover bolts for a complete installation.
• Rocker Arms - Complete your SVE Cylinder Head install with a set of new Rocker Arms. Aftermarket Rocker Arms reduce friction and allow your entire valvetrain to operate smoother than it came from the factory. This increased smoothness allows for more power output and increased response.
• Lifters - Install a new set of hydraulic roller lifters with your new SVE Cylinder Heads. This upgraded design allows for a much quieter lifter sound when operating, and will slightly increase power due to the reduced friction compared to the factory lifters.

Cylinder Head Specs:

• Cylinder Head Style: Assembled
• Head Material: A356 Aluminum
• Combustion Chamber Volume (cc): 56cc
• CNC-Machined Combustion Chamber: No
• Intake Runner Volume (cc): 170cc
• Exhaust Runner Volume (cc): 66cc
• CNC-Machined Intake Runner: No
• CNC-Machined Exhaust Runner: No
• Intake Port Location: Standard
• Exhaust Port Location: Standard
• Intake Valve Diameter (in): 2.020 in.
• Exhaust Valve Diameter (in): 1.600 in.
• Maximum Valve Lift (in): 0.575 in.
• Camshaft Style: Hydraulic roller
• Outside Diameter of Outer Spring (in): 1.460 in.
• Number of Springs Per Valve: Single w/ Damper
• Valve Spring Pressure: 130lb Seat Pressure/300lb Open Pressure @0.500" Lift
• Spark Plug Style: Gasket Seat
• Rocker Arm Studs Included: Yes
• Rocker Arm Nut Thread Size: 3/8 in.-24
• Rocker Arms Included: No
• Rocker Arm Nuts Included: No
• Guideplates Included: Yes
• Guideplate Pushrod Size: 5/16 in.
• Intake Valve Angle: 20 Degree
• Exhaust Valve Angle: 20 Degree
• Valve Guide Material: Manganese Bronze
• Valve Seat Machine Style: 3-Angle
• Oiling Style: Through pushrod
• Max RPM: 5800-6000
• Quantity: Sold as a pair

Installation Note

• Valve Springs are rated up to .575 Lift, Piston to valve clearance MUST BE MEASURED & CHECKED on any cam greater than .500 lift to verify proper clearances.
• These heads have a 1/2" mounting hole for the head bolts/studs that allow them to be bolted on to a 5.8L/351W.For use on a 5.0L/302 or other Ford small block that utilizes a 7/16" bolt, head bolt reducer bushings will be needed.
• Will require the use of hardened push rods.
• These heads work with the after-market spark plug part number AGSP32CK.

Emissions Note

• These cylinder heads DO NOT have the provisions for smog and, therefore are not 50 state legal.

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