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Airflow Research (AFR) Engines & Components

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Results 1 - 24 of 56

AFR 185cc SBF Enforcer Cylinder Heads

Airflow Research developed these 185cc SBF Enforcer cylinder heads for maximum small block Ford performance. They're manufactured from tough but lightweight A356 aluminum and feature 185cc intake runners and 64cc combustion chambers. Enforcer heads feature a 0.325 in. deck, stock valve locations, and are designed for blocks with a minimum bore of 4.000 in. The heads are available bare or fully assembled with stud mount rocker mounting.

4.52 out of 5 stars ( 21 )

$767.55

AFR 195cc SBC Eliminator Street Heads

AFR 195cc SBC Eliminator Street Heads are fully CNC-machined (combustion chamber, intake, and exhaust ports) and available in your choice of straight or angled plug versions. AFR 195cc heads feature a 75cc or 65cc combustion chamber with a 64cc exhaust port and a 3/4 in. thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm, 2.050 in. intakes (competition versions are 2.080 in.) and 1.600 in. exhausts with AFR's hardened ductile iron interlocking valve seats. The valve springs included are intended for use on roller camshafts. The exceptional flow characteristics of AFR 195cc Eliminators, a 23 degree valve angle, and standard valve spacing make them the perfect street heads for 350 to 400 c.i.d. engines in the 2,000 to 6,500 rpm operating range. They carry CARB #D-250-2 when used on 1969-94 applications with the heat riser. Order the bare or assembled model recommended for your vehicle and engine.

5.0 out of 5 stars ( 40 )

$2,328.90

AFR 265cc Oval Port Magnum BBC Cylinder Heads

AFR 265cc Oval Port Magnum BBC cylinder heads are designed to be used on engine displacement up to 468 cu. in. operating at or below 6,200 rpm—providing tons of bottom-end torque, tremendous throttle response, and great all-around power. Recommended for street, strip, or towing applications, these torque monsters can flow 354 cfm at 0.650 in. lift. These units feature a 3/4 in. thick deck, along with reinforced rocker stud bosses, and thick, rugged castings. Want high-flowing power? Then choose these 265cc Oval Port Magnum BBC cylinder heads from AFR. Additional features include: * Intake runners and exhaust ports are partially CNC-machined * Competition 5-angle valve job * 3/8 in. guideplates * A356 aluminum material

4.11 out of 5 stars ( 9 )

$3,182.55

AFR 230cc LSX Mongoose Strip Cylinder Heads

Recommended for aggressive street/strip builds with displacements up to 427 c.i. operating at or below 7200 rpm. Capable of flowing 328 cfm at 0.650 in. lift with a 4.000 in. bore size. AFR street legal 230cc LS1 Mongoose strip cylinder heads are specifically designed for Gen III Chevy Corvettes, Camaros, and trucks. LSX cylinder heads offer unmatched flow performance and feature 2.080 in. intake and 1.600 in. exhaust valves with their ductile iron interlocking valve seats. Mongoose strip heads are available with 62cc, 65cc, and 72cc combustion chambers. Structural features like AFR's trademark 3/4 in. thick head deck, a must for blown and nitrous applications, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. An exclusive new modern combination chamber design with a double quench pad area helps the LSX generate huge low and mid-lift airflow numbers.

4.71 out of 5 stars ( 7 )

$3,332.70

AFR 210cc LS1 Enforcer Cylinder Heads

AFR 210cc LS1/LS2/LS6 Enforcer cylinder heads are available in standard and small bore applications. They feature Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners, and combustion chambers that allow for extremely accurate and repeatable port location/performance. The budget-friendly heads are perfect for your OEM engine operating below 6,300 rpm. Fully assembled Enforcer models include the identical components found in AFR's higher end CNC-ported cylinder heads—such as PAC Racing springs, Viton® valve seals, machined bead valve locks (not stamped), hardened spring seats, and one-piece 8mm 21 4N stainless steel valves. The heads are available without any parts for the DIY. Sold as a single piece, two heads are required per engine.

5.0 out of 5 stars ( 2 )

$562.80

$780.15

AFR 260cc LS3 Mongoose Cylinder Heads

AFR 260cc LS3 Mongoose cylinder heads are 100 percent 5-axis, CNC-ported, and feature titanium retainers, A356 aluminum castings, and Pac Racing springs. These CARB certified heads require 4.000 in. or larger bore applications on up through 454 cu. in. engines operating at or below 7,000 rpm—and flow over 380 cfm at 0.700 in. lift and are designed primarily for street and strip applications. Other structural features include Air Flow Research's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. Use of AFR stud girdles and full roller rocker arms are required. When it comes to building power, start with these AFR 260cc LS3 Mongoose cylinder heads.

5.0 out of 5 stars ( 5 )

$3,490.20

AFR 227cc SBC Eliminator Race Ready Racing Heads

AFR 227cc SBC Eliminator Race Ready Racing heads offer outstanding track performance at a competitive price. Exhaust and intake ports and combustion chambers are 100 percent CNC-ported, with coarser machine levels for terrific flow characteristics and big power gains. The 227cc SBC Eliminator heads feature a 3/4 in. thick head deck, ideal for nitrous or blower applications. They come complete and ready-to-run with quality AFR-proven components for maximum reliability—or choose "bare" heads (no parts) to design your own ultimate power package. These cylinder heads are available in standard and spread port exhausts. AFR 227cc SBC Eliminator Race Ready racing heads are a great choice for budget-minded racers.

4.89 out of 5 stars ( 9 )

$2,592.45

AFR 220cc SBF Renegade 20 Degree Competition Heads

AFR 220cc SBF Renegade 20 Degree Competition Heads are the largest, best-flowing choice to top your small block Ford. These power-producing cylinder heads are born of A356 aluminum castings and feature intake ports, exhaust ports, and combustion chambers that are all 100 percent CNC-ported. Renegades are outfitted with lightweight 8mm, 2.100 in. intake valves and 1.570 in. exhaust valves to move massive amounts of air. They come with either combustion chamber volumes of 58 or 72cc accompanied by 70cc exhaust ports, which are raised .375 in. higher than stock. Plus, AFR's trademark 3/4 in. thick cylinder head deck makes them ideal for heavy nitrous or blower applications. Choose the flow characteristics that can give your Ford the power to win—AFR 220cc SBF Renegade 20 degree competition heads.

4.92 out of 5 stars ( 12 )

$3,143.70

AFR 220cc SBC Eliminator Racing Heads

Race-ready AFR 220cc SBC Eliminator racing heads feature 100 percent CNC-ported intakes with greater detail. They also come with 100 percent CNC-ported combustion chambers and 80cc exhaust ports with a 3/4 in. thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm, 2.080 in. intakes and 1.600 in. exhausts with AFR's hardened ductile iron interlocking valve seats. The valve springs included are intended for use on roller camshafts. They also offer exceptional flow characteristics, a 23 degree valve angle, and standard valve spacing. These cylinder heads are perfect for 350 to 400 c.i.d. engines in bracket drag cars, sportsman oval trackers, and highly modified street-class cars operating between 3,000 and 7,500 rpm (higher rpm ranges are possible, depending on the combination of parts).

4.59 out of 5 stars ( 22 )

$2,592.45

$3,279.15

AFR 185cc SBF Renegade 20 Degree Street Heads

If you need the world's finest high performance street/strip small block Ford heads, then check out AFR's 185cc emissions-legal Renegade Street cylinder heads (CARB E.O. #250-3). With lightweight 8mm, 2.020 in. intake valves and 1.600 in. exhaust valves, combustion chamber volumes of 58 or 72cc, and 68cc exhaust ports, AFR's 185cc Ford cylinder heads are designed for 302-351 c.i.d. engines operating from 1,500 to 6,500 rpm. A 3/4 in. thick head deck makes the AFR heads ideal for nitrous or blower applications. These heads will not accept rail rocker arms, and hardened push rods are required on models designed for stud mount rocker arms.

4.68 out of 5 stars ( 37 )

$2,328.90

AFR 290cc Oval Port Magnum BBC Cylinder Heads

AFR 290cc oval port Magnum BBC cylinder heads feature 100 percent CNC porting on the exhaust, intake, and combustion chambers to provide the ultimate in oval port performance. They produce tremendous airspeed and are ideal for 396-509 cu. in. engines. These heads feature AFR's trademark 3/4 in. deck, reinforced rocker stud bosses, and thick, rugged castings. They're available bare or fully assembled with one-piece stainless steel valves, double valve springs, steel locks, retainers, and guideplates. The cylinder heads also have high-flowing 3/8 in. raised exhaust ports for better performance. Choose the model best suited for your vehicle application.

4.75 out of 5 stars ( 4 )

$4,105.50

AFR 335cc Enforcer BBC Cylinder Heads

AFR's 335cc BBC Enforcer cylinder heads feature their Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners, and combustion chambers that allow for extremely accurate and repeatable port location/performance. These budget-friendly heads are perfect for your 509 to 540 cu.in. operating below 6,500 rpm. They come fully assembled with the identical components found in AFR's higher end CNC-ported cylinder heads—such as ARP rockers studs, PAC Racing springs, Viton® valve seals, AFR adjustable guide plates, machined bead valve locks (not stamped), hardened spring seats, and AFR's one-piece 8mm 21 4N stainless steel valves. Order the cylinder heads recommended for your year/make and engine application.

4.0 out of 5 stars ( 5 )

$1,023.75

AFR 245cc NPP SBC Eliminator Racing Cylinder Heads

AFR 245cc NPP SBC Eliminator racing cylinder heads are their largest and most powerful 60/40 head for the small block Chevy. These competition-ported heads feature 100 percent CNC-machined intake runners, exhaust ports, and combustion chambers. With A356 aluminum castings and high-quality components throughout, these NPP—no pushrod pinch—units have extra machining for 3/8 in. pushrod clearance. AFR 245cc NPP SBC Eliminator heads are offered with stock or spread port exhaust, and steel or titanium retainers, as well as bare.

5.0 out of 5 stars ( 1 )

$4,035.15

AFR Racing Pushrod Guideplates

AFR Racing pushrod guideplates offer precise fit and function to keep your pushrods from deflecting under high-rpm conditions. They are manufactured from durable, hardened steel with a black oxide finish for long-lasting performance. The guideplates are available in different styles and sizes to accommodate various Chevy big block or small block type applications. Achieve the performance levels you need with an assist from AFR Racing.

4.75 out of 5 stars ( 16 )

$9.45

$76.65

AFR 165cc SBF Renegade 20 Degree Street Heads

For the ultimate small block Ford street car, consider AFR 165cc SBF Renegade 20 degree street heads. Unlike some aftermarket heads, AFR's Ford cylinder heads (CARB E.O. # D250-3) fit all of your stock components; no special parts are required! With lightweight 8mm, 1.900 in. intake valves and 1.600 in. exhaust valves, combustion chamber volumes of 58 and 60cc, and 68cc exhaust ports, these emissions-legal aluminum cylinder heads are perfect for 289 and 302 engines operating from idle to 6,000 rpm. A 3/4 in. thick head deck makes the heads ideal for nitrous or blower applications. Renegade cylinder heads will not accept rail rocker arms, and hardened pushrods are required on models designed for stud mount rocker arms.

4.56 out of 5 stars ( 27 )

$2,328.90

AFR 210cc SBC Eliminator Racing Heads

AFR 210cc SBC Eliminator racing heads are available in two stages of performance. The race-ready version features 100 percent CNC-ported intakes—and 100 percent CNC-ported intakes with greater detail. They come with 100 percent CNC-ported combustion chambers and 80cc exhaust ports with a 3/4 in. thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm, 2.080 in. intakes and 1.600 in. exhausts with AFR's hardened ductile iron interlocking valve seats. The valve springs included are intended for use on roller camshafts. The exceptional flow characteristics, 23 degree valve angle, and standard valve spacing make these the perfect cylinder heads for 350 to 400 c.i.d. engines in bracket drag cars, sportsman oval trackers, and highly modified street-class cars operating between 3,000 and 7,500 rpm (higher rpm ranges are possible, depending on the combination of parts). The 210cc aluminum cylinder heads are available for either standard or spread port exhausts, bare or assembled style.

4.81 out of 5 stars ( 16 )

$2,592.45

$3,193.05

AFR 235cc SBC Eliminator Competition Racing Heads

Stay ahead of the competition with high-flowing AFR 235cc SBC Eliminator Competition Racing heads. Intake ports, exhaust ports, and cylinder heads are 100 percent CNC-ported with finer machine levels and improved port-shaped details for optimum flow characteristics. AFR Eliminator Competition heads will satisfy your big displacement small block Chevy engine's need for more air—and to achieve additional cooling in the center of the head, spread port styles are offered. Eliminator Competition heads come complete and ready-to-run with AFR power-proven components—or choose "bare" (no parts) heads to create your own personal power package! Go with AFR cylinder heads—high performance components built for racers, by racers.

5.0 out of 5 stars ( 4 )

$3,820.95

AFR Stud Girdles

AFR stud girdles are designed to eliminate the rocker stud flexing and associated horsepower loss that come with today's high-lift cams and high-pressure valve springs. They are manufactured from sturdy anodized aluminum to keep your valvetrain rigid for maximum engine performance. Available for small block Chevy, small block Ford, and big block Chevy applications, the AFR stud girdles will maintain valvetrain longevity throughout the engine's entire rpm range.

4.62 out of 5 stars ( 55 )

$201.60

$312.90

AFR Aluminum Roller Rocker Arms

AFR aluminum roller rocker arms are CNC-machined from high-strength aluminum, heat-treated for reliability, and anodized for protection. They feature a fuller roller fulcrum and are available in stud-mount or pedestal-mount styles to fit your specific application. Pick up a set of AFR aluminum roller rocker arms and give your engine better durability throughout the entire rpm range.

4.83 out of 5 stars ( 6 )

$681.45

AFR 205cc SBF Renegade Race Heads

If you're looking for the world's finest street/strip heads available, then AFR's 205cc Renegade Race cylinder heads are your answer. With lightweight 8mm 2.080 in. intake and 1.600 in. exhaust valves, these heads move tremendous volumes of air through conservative runner volumes, spelling big torque and horsepower numbers. AFR's trademark 3/4 in. thick head deck makes them ideal for heavy nitrous or blower applications. They even offer an available nitrous or blower exhaust port option featuring a 73cc ultra high-flowing exhaust port.

5.0 out of 5 stars ( 13 )

$3,014.55

AFR 227cc SBC Eliminator Competition Racing Heads

AFR 227cc SBC Eliminator Competition Racing heads are 100 percent CNC-ported, with finer machine levels and improved port-shaped details for optimum flow characteristics, giving you the power you need to win. The 227cc SBC Eliminator heads have a 3/4 in. thick head deck ideal for nitrous or blower applications. They come complete and ready-to-run with AFR power-proven components for ultimate power and reliability. Or choose "bare" heads (no parts) to design your own ultimate power package. These heads are available in standard and spread port exhausts. Bolt-on high performance with AFR 227cc SBC Eliminator Competition racing heads—you'll be the baddest thing on four wheels!

Not Yet Reviewed

$3,279.15

AFR 180cc SBC Eliminator Street Heads

AFR 180cc SBC Eliminator street heads are available in your choice of straight or L98 angle plug versions. These cylinder heads feature a 75cc or 65cc combustion chamber with a 64cc exhaust port and a 3/4 in. thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight, 8mm, and have a 2.020 in. intake and 1.600 in. exhaust with AFR's hardened ductile iron interlocking valve seats. The valve springs included are intended for use on roller camshafts. These heads' exceptional flow characteristics, 23 degree valve angle, and standard valve spacing make them the perfect street heads for 327 to 350 c.i.d. engines in the idle to 5,500 rpm operating range (higher rpm ranges are possible, depending on the combination of parts). Eliminator cylinder heads carry CARB E.O. #D-250-2 when used on 1969-94 applications with the heat riser. They're also available for your 1987 and later engines with centerbolt valve covers and two center intake bolts at 72 degree angles; Vortec-style cylinder heads are available, too. Their dual valve cover bolt pattern is standard and their exhaust port is raised .100 over GM L98 cylinder heads.

4.78 out of 5 stars ( 9 )

$2,106.30

$2,328.90

AFR 175cc Small Block Mopar Blue Hornet Heads

AFR 175cc Small Block Mopar Blue Hornet cylinder heads, part of their Performance lineup, feature an "as cast" surface on the intake and exhaust runners, as well as the combustion chamber for optimal performance, and an enhanced water jet design to ensure superior cooling in crucial areas. These innovative heads offer exceptional value, available as a "no parts" head or fully assembled with the premium components found in AFR's top-tier cylinder heads. They are a perfect choice for anyone looking to upgrade from factory iron pieces. Select the AFR Mopar head(s) preferred.

4.0 out of 5 stars ( 1 )

$627.90

AFR Rocker Arm Stud Girdle Replacement Nuts

AFR rocker arm stud girdle replacement nuts are designed to keep your rocker arms in place, while accepting an AFR double bar stud girdle. They are available in your choice of 3/8 in. or 7/16 in. thread sizes, select the rocker arm stud girdle replacement nuts best suited to fit your application.

4.43 out of 5 stars ( 7 )

$12.60

$133.35

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