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MERCURY COUGAR Cylinder Heads

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Results 1 - 20 of 20

Edelbrock Performer RPM Cylinder Heads

Edelbrock Performer RPM aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. These heads offer improved power throughout the RPM range for greater throttle response and top-end horsepower. Countless options are available; order the model recommended for your vehicle and engine application.

4.3 out of 5 stars ( 159 )

$701.50

$1,441.50

Edelbrock Total Power Package 400 HP 351W Small Block Ford Top-End Engine Kits

The Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.

4.75 out of 5 stars ( 4 )

$3,870.95

Edelbrock Total Power Package 367 HP Small Block Ford Top-End Engine Kits

The Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.

4.67 out of 5 stars ( 6 )

$3,734.95

Edelbrock E-Street Cylinder Heads

Are you looking for a set of entry-level street performance heads for your modern street rod, muscle car, or truck? Edelbrock E-Street cylinder heads are just the ticket. These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. Their modern combustion chamber design helps to improve the combustion process and their larger-than-stock intake and exhaust ports help to move more air through your engine. These features improve an engine's efficiency, resulting in more horsepower and torque and improved mileage potential. All Edelbrock E-Street cylinder heads are assembled with manganese bronze valve guides, powder metal interlocking valve seats, and stainless steel one-piece valves with hardened valve tips. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines.

4.25 out of 5 stars ( 118 )

$1,332.95

$1,479.95

Edelbrock E-205 Cylinder Heads

You're taking a step up in performance with Edelbrock E-205 small block Ford cylinder heads. Featuring larger runners for increased airflow, revised exhaust ports, and larger diameter springs for higher lift camshafts, Edelbrock E-205 cylinder heads are ideal for spec series racers and larger displacement engines. They are able to support the power that you need to compete--more than 500 naturally aspirated horsepower and even more in forced induction applications! Get race-level performance with OEM compatibility when you bolt on a pair of Edelbrock E-205 cylinder heads.

3.5 out of 5 stars ( 2 )

$1,687.95

$1,838.95

Edelbrock Performer Cylinder Heads

All Edelbrock aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. They offer improved power throughout the rpm range for greater throttle response and top-end horsepower. The intake and exhaust runners are CNC-machine profiled for superior flow and performance.

3.92 out of 5 stars ( 40 )

$1,087.50

Mahle Original Head Bolt Kits

Mahle Original fasteners deliver the clamping force necessary to seal the combustion chambers, as well as the oil and coolant passages--even at extreme temperatures and pressures. On your next cylinder head reassembly, use bolts designed to exact specifications for the best sealing solution--Mahle Original head bolt kits.

4.33 out of 5 stars ( 33 )

$21.99

$32.99

PRW Cylinder Head Stud Kits

PRW cylinder head stud kits offer heavy-duty fasteners, along with 12-point nuts and washers for Ford Powerstroke engines. These replacement studs are machined from 4135 chromoly steel and finished with a black oxide. They provide superior clamping power, compared to the stock bolts—which will solve the problem of head gasket failure caused by increased cylinder pressure.

Not Yet Reviewed

$109.95

VEGE Remanufactured Cylinder Heads

VEGE Remanufactured cylinder heads are a popular choice for performance and value. With its advanced and efficient production process, backed by more than eight decades of experience, VEGE is able to supply remanufactured cylinder heads with a level of quality that equals that of new OEM products—at extremely competitive prices. The rebuilt cylinder heads are carefully inspected, cleaned, and then fully machined and assembled with top-of-the-line components. Unless otherwise noted, the assemblies include a cast iron or aluminum cylinder head, intake and exhaust valves, valve springs, retainers, locks, stem seals, rocker arm studs, and more. Many heads include rocker arms. Nearly a thousand models are available, for fitment on countless applications.

3.74 out of 5 stars ( 39 )

$228.99

$513.99

Pioneer Replacement Cylinder Head Fasteners

Pioneer has the most complete coverage of early and late model replacement cylinder head fasteners. These bolts are manufactured to meet or exceed OEM specifications. Torque-to-yield fasteners on many late-model applications must be replaced to avoid premature head gasket failure. Order the hardware set recommended for your application.

4.53 out of 5 stars ( 15 )

$35.99

$49.99

Fel-Pro Headbolt Kits

Fel-Pro headbolt kits contain a complete set of the highest quality headbolts and hardened washers available. They're cold-formed to ensure molecular integrity, then heat-treated prior to thread rolling and machining. Reduced-diameter bolt heads eliminate the need for valvetrain removal and facilitate cylinder head re-torquing. The bolts are available in a variety of head styles for fitment on specific vehicle and cylinder head applications.

4.51 out of 5 stars ( 215 )

$24.99

$36.99

Pioneer Cylinder Head Dowel Pins

Pioneer offers quality new cylinder head dowel pins at an affordable price. These dowel pins are great to have on hand when you do machine work on your block. Pioneer cylinder head dowel pins are made with first-rate materials and are available in a choice of sizes for accurate cylinder head alignment.

4.82 out of 5 stars ( 56 )

$10.99

Ford Performance Parts Z2 Velocity Vane Cylinder Heads

Ford Performance Parts Z2 Velocity Vane cylinder heads improve power throughout the rpm range. Developed with advanced computer-aided engineering simulation tools, Ford Z2 aluminum heads feature their unique Velocity Vane intake port design that delivers outstanding street/strip power. These high performance cylinder heads are direct bolt-ons for Ford 289/302/351W engines, and they retain OEM exhaust, intake, and accessory mounting locations. Ford Z2 Velocity Vane cylinder head specs: * Cast from prime 356 T6 aluminum * Heads retain Ford OEM intake and exhaust port location and flange * Velocity Vane in port floor directs airflow around the valve stem, leading to more horsepower and torque throughout the full power range * 20 degree inline valve angle * Premium stainless steel valves: 2.05 in. intake, 1.60 in. exhaust valves * PAC 1219X conical-style valve springs with machined retainers and 10 degree machined valve locks--most hydraulic cams can be used with these springs * Valve spring closed pressure: 145 lbs. at 1.800 in. * Valve spring open pressure: 358 lbs. at 1.175 in. * Coil bind at 1.100 in., 0.650 in. max lift * Includes laser-cut guide plates for use with 5/16 in. pushrods and 7/16 in. rocker studs * Steel alloy intake and exhaust valve seats * Manganese-bronze valve guides * 63cc combustion chamber

5.0 out of 5 stars ( 2 )

$1,306.99

Trick Flow® Camshaft Tower Bolts

Securely attach your overhead cam with Trick Flow® camshaft tower bolts. They are designed to fit the OEM camshaft towers and are manufactured to factory specifications, ensuring a direct fit.

Not Yet Reviewed

$40.99

Edelbrock E-CNC 185 Cylinder Heads

Edelbrock E-CNC 185 cylinder heads feature fully CNC-machined intake ports, combustion chambers, and exhaust ports for improved performance. Their all-new design delivers optimal airflow for maximum horsepower and torque in high performance street vehicles and small engine racing applications. The heads maintain the stock 23 degree valve angle and the intake flange is drilled to accept 1986 and earlier intake manifold designs. The CNC-machined ports give you a 64cc combustion chamber, a 185cc intake runner, and a 75cc exhaust port.

5.0 out of 5 stars ( 1 )

$1,431.50

Fel-Pro Cylinder Head Alignment Dowel Pins

Fel-Pro cylinder head dowel pins assures proper gasket and casting alignment for an accurate seal and trouble-free engine operation. You risk improper alignment, leaks or worse--mechanical engine damage--if you try to install your head gasket on damaged dowels. Use Fel-Pro cylinder head alignment dowel pins for perfect alignment and leak-free operation.

4.86 out of 5 stars ( 7 )

$5.99

$6.99

Dorman Cylinder Head Bolts

Dorman cylinder head bolts are manufactured with a high-corrosion resistance for extended service life and long-lasting durability. Select the fasteners designed for your vehicle application. Features include: * High-quality steel construction * Direct replacement for a proper fit every time * Resistant to rust * Constructed to strict engineering quality standards

2.67 out of 5 stars ( 3 )

$15.99

$22.99

Pioneer Performance Cylinder Head Fasteners

Pioneer performance cylinder head fasteners have the right stuff to bolt your heads securely. The fastener kits are available for thousands of applications—and all offer 8740 chromoly nickel material, heat-treating to 180,000 psi, centerless grinding, thread rolling after heat-treat, and cold-forming of the underhead radius. These processes mean that your Pioneer performance cylinder head fasteners will have the right material that delivers the right tensile and fatigue strength to complete your installation with confidence.

Not Yet Reviewed

$124.99

$179.99

Edelbrock Total Power Package 451 HP 351W Small Block Ford Top-End Engine Kits

The Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.

Not Yet Reviewed

$5,680.95

Ford Performance Parts Z-Head Aluminum Cylinder Heads

Ford Performance Parts Z-Series aluminum cylinder heads provide increased intake and exhaust airflow and are available for Ford small block Windsor engines. They were designed using solid modeling technology from prime A356 T-6 aluminum and feature high-flow ports, steel alloy intake and exhaust valve seats, and manganese-bronze valve guides. Ford Z-Series heads accept both tapered seat and gasket-style 14mm spark plugs and are available as-cast or CNC-ported, both bare and assembled. Select heads are also offered with advanced "Velocity Vane" intake port design that delivers outstanding street/strip power. Developed with advanced computer-aided engineering simulation tools, their unique intake port design improves power throughout the rpm range. Velocity Vane cylinder heads are a direct bolt-on and retain OEM exhaust, intake, rocker arm, and accessory mounting locations. Features include (some vary depending on version): * A variety of combustion chamber volumes * Cast with high-flow ports * 20 degree inline valves * Steel alloy intake and exhaust valve seats * 7/16 in. screw-in studs (not included on bare heads) * Requires 1.5:1 ratio roller rocker arms with .150 in. offset intake pushrod cup (not included) * Assembled heads include laser-cut guide plates for 5/16 in. pushrods and 7/16 in. rocker studs * Premium stainless steel intake and exhaust valves (with assembled heads) Notes: * As-cast bare heads require competition valve job and bowl blending * Custom headers may be required for heads with raised exhaust port exits * Check intake manifold for port match; not all intakes are compatible due to the tall high-flow ports (does not fit M-9424-Z51/-Z51P) * Check piston-to-valve clearance, including radial valve clearance, before installing

5.0 out of 5 stars ( 1 )

$1,042.99

$1,705.99

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