TRE Performance » Air Flow Research

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

KIT/COMBO CONTENTS:

AFR-1402 AFR 165cc emissions legal cylinder heads, 58cc combustion chamber, Pair

TFS-51403001 Trick Flow Camshaft, Track Max, Hydraulic Roller Tappet, Duration @.050 221/225, Lift .499/.510, Ford, Small Block

TFS-51400510 Trick Flow Rocker Arms, 1.6 Ratio, 3/8 in. Stud, Full Roller Design, Aluminum, Small Ford and 351W, Set of 16

ARP-154-3601 AFR Cylinder Head Bolts, High Performance, Hex Head, Ford, 289-302, Kit

FEL-TCS45449 Fel-Pro Gaskets, Timing Cover, Cork/Rubber, Ford, Small Block, Kit

TFS-51400904 Trick Flow Gaskets, Head Set, Ford, 289/302/351W, Set

TFS-52578520 Trick Flow Timing Chain and Gear Set, True Roller, Double Roller, Billet Steel Sprockets, Ford, Small Block, Set

TFS-21406250 Trick Flow Pushrods, Chromemoly, Heat-Treated, 5/16 in. Diameter, 6.250 in. Length, Universal, Set of 16

TFS-21400004 Trick Flow OE replacement 302 roller lifters for roller 302/351w blocks, .874" OD

KIT/COMBO CONTENTS:

AFR-1402 AFR 165cc emissions legal cylinder heads, 58cc combustion chamber, Pair

TFS-51403002 Camshaft, Track Max, Hydraulic Roller Tappet, [email protected] 224/232,Lift .542/.563,Ford,Small Block,Each

TFS-51400510 Trick Flow Rocker Arms, 1.6 Ratio, 3/8 in. Stud, Full Roller Design, Aluminum, Small Ford and 351W, Set of 16

ARP-154-3601 Cylinder Head Bolts, High Performance, Hex Head, Ford, 289-302, Kit

TFS-51400419 Cylinder Head Bolt Bushings, Kit(not needed with 351w)

FEL-TCS45449 Gaskets, Timing Cover, Cork/Rubber, Ford, Small Block, Kit

TFS-51400904 Gaskets, Head Set, Ford, 289/302/351W, Set

TFS-52578520 Trick Flow Timing Chain and Gear Set, True Roller, Double Roller, Billet Steel Sprockets, Ford, Small Block, Set

TFS-21406250 Pushrods, Chromemoly, Heat-Treated, 5/16 in. Diameter, 6.250 in. Length, Universal, Set of 16

TFS-21400004 Trick Flow OE replacement 302 roller lifters for roller 302/351w blocks, .874" OD

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

The Small Port, High Velocity Torque Monster!
The AFR Emissions Legal (ARB only, 49 state legal, not California), 180cc intake port LT1 Small Block Chevy cylinder heads are available in the LT1 angle plug version only. These heads feature a 55cc to 65cc combustion chamber with a 64cc exhaust port and a 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.020" intake and 1.600" exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of idle to 6000 rpm (higher rpm ranges possible depending on combination of parts), 23° valve angle, and standard valve spacing make this the perfect street cylinder head for 350 cid to 383 cid performance engines and is specifically designed for 1992-1995 Corvettes and 1993-1997 Camaro's. No special parts are required. Dual valve cover bolt pattern is standard.
Exhaust port is raised .100 over GM L98 cylinder heads.

Note: Angle mills might require .120" Thick intake gasket.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angle mills might require .120" Thick intake gasket.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

The Ultimate Bolt-On Emission Legal Street/Strip Weapon!
If you need the world´s finest street/strip small block Ford head, check out AFR´s all new 185cc intake port emissions legal (ARB only, 49 state legal, not California) performance aluminum cylinder heads. With lightweight 8mm 2.020" intake valves, 1.600" exhaust valves, combustion chamber volumes of 58cc or 72cc, and 70cc exhaust ports, AFR´s new 185cc Ford cylinder heads are designed for 302-351 cid engines operating from 1500 rpm to 6500 rpm. A 3/4" thick head deck makes the AFR head ideal for nitrous or blower applications. Also available with optional nitrous or blower exhaust ports featuring 70cc ultra high flowing exhaust ports. These heads will not accept shaft mount rocker arms. Hardened pushrods required with cylinder heads #1420 and #1422. High flow 2.020 valves might require aftermarket pistons notched for valve clearance.

Note:
Hydraulic roller cams typically experience valve float at 6000-6200 rpm because of their fast ramp rates. AFR suggests you upgrade your springs to AFR part #8019, 1.270 O.D. with higher spring pressures to reduce chances of valve float associated with rpm’s 6200 or higher, but smaller cams with less than .500 lift can rev to 6500 rpm with the included springs.
Note: Stock 86-93 5.0L must have pistons notched for clearance.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

KIT/COMBO CONTENTS:

AFR-1422 AFR 185cc emissions legal cylinder heads, Pair, 58cc chambers

TFS-51403002 Camshaft, Track Max, Hydraulic Roller Tappet, [email protected] 224/232,Lift .542/.563,Ford,Small Block,Each

TFS-51400510 Trick Flow Rocker Arms, 1.6 Ratio, 3/8 in. Stud, Full Roller Design, Aluminum, Small Ford and 351W, Set of 16

ARP-154-3601 Cylinder Head Bolts, High Performance, Hex Head, Ford, 289-302, Kit

TFS-51400419 Cylinder Head Bolt Bushings, Kit(not needed with 351w)

FEL-TCS45449 Gaskets, Timing Cover, Cork/Rubber, Ford, Small Block, Kit

TFS-51400904 Gaskets, Head Set, Ford, 289/302/351W, Set

TFS-52578520 Trick Flow Timing Chain and Gear Set, True Roller, Double Roller, Billet Steel Sprockets, Ford, Small Block, Set

TFS-21406250 Pushrods, Chromemoly, Heat-Treated, 5/16 in. Diameter, 6.250 in. Length, Universal, Set of 16

TFS-21400004 Trick Flow OE replacement 302 roller lifters for roller 302/351w blocks, .874" OD

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angel mills might require .120" thick intake gasket.

The Ultimate Bolt-on Emissions Legal Street Weapon!
The AFR 195cc intake port small block Chevy cylinder heads are available in your choice of straight or L98 angle plug versions. These cylinder heads feature a 65cc or 75cc combustion chamber with a 64cc exhaust port and a 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.050" (comp package has 2.080") intake and 1.600" exhaust with AFR's hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of 2000 rpm to 6500 rpm, 23? valve angle, and standard valve spacing make this the perfect street head for 350 cid to 400 cid engines from 1955-86. Available for 1987 to present engines with center bolt valve covers and 2 center intake bolts at 72 degree angle - AFR #1041. No special parts are required. Drilling for centerbolt valve covers available as an option. The exhaust ports are raised .100" over a standard GM L-98 cylinder head.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angel mills might require .120" thick intake gasket.

The Ultimate Bolt-on Emissions Legal Street Weapon!
The AFR 195cc intake port small block Chevy cylinder heads are available in your choice of straight or L98 angle plug versions. These cylinder heads feature a 65cc or 75cc combustion chamber with a 64cc exhaust port and a 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.050" (comp package has 2.080") intake and 1.600" exhaust with AFR's hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of 2000 rpm to 6500 rpm, 23? valve angle, and standard valve spacing make this the perfect street head for 350 cid to 400 cid engines from 1955-86. Available for 1987 to present engines with center bolt valve covers and 2 center intake bolts at 72 degree angle - AFR #1041. No special parts are required. Drilling for centerbolt valve covers available as an option. The exhaust ports are raised .100" over a standard GM L-98 cylinder head.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angel mills might require .120" thick intake gasket.

The Ultimate Bolt-On Emission Legal Street/Strip Weapon!
If you need the world´'s finest street/strip small block Ford head, check out AFR's all new 195cc intake port emissions legal (CARB EO #250-3- Part numbers 14xx only) performance cylinder heads. With lightweight 8mm 2.050 intake valves, 1.600 exhaust valves, combustion chamber volumes of 58cc or 72cc, and 70cc exhaust ports, AFR's new 195cc Ford cylinder heads are designed for 331-392 cid engines operating from 2000 rpm to 7000 rpm. A 3/4" thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened pushrods required.

Note: AFR 1381, 1383, 1426 and 1428 Competition package head exhaust port is raised .125 over stock.
Note: Stock 86-93 5.0L must have pistons notched for clearance.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

The Ultimate Bolt-On Emission Legal Street/Strip Weapon!
If you need the world´'s finest street/strip small block Ford head, check out AFR's all new 195cc intake port emissions legal (ARB only, 49 state legal, not California) performance cylinder heads. With lightweight 8mm 2.050 intake valves, 1.600 exhaust valves, combustion chamber volumes of 58cc or 72cc, and 70cc exhaust ports, AFR's new 195cc Ford cylinder heads are designed for 331-392 cid engines operating from 2000 rpm to 7000 rpm. A 3/4" thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened pushrods required.

Note: AFR 1381, 1383, 1426 and 1428 Competition package head exhaust port is raised .125 over stock.
Note: Stock 86-93 5.0L must have pistons notched for clearance.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

The Ultimate Bolt-On Emission Legal Street/Strip Weapon!
If you need the world´'s finest street/strip small block Ford head, check out AFR's all new 195cc intake port emissions legal (CARB EO #250-3- Part numbers 14xx only) performance cylinder heads. With lightweight 8mm 2.050 intake valves, 1.600 exhaust valves, combustion chamber volumes of 58cc or 72cc, and 70cc exhaust ports, AFR's new 195cc Ford cylinder heads are designed for 331-392 cid engines operating from 2000 rpm to 7000 rpm. A 3/4" thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened pushrods required.

Note: AFR 1381, 1383, 1426 and 1428 Competition package head exhaust port is raised .125 over stock.
Note: Stock 86-93 5.0L must have pistons notched for clearance.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

The Ultimate Bolt-On Emission Legal Street/Strip Weapon!
If you need the world´'s finest street/strip small block Ford head, check out AFR's all new 195cc intake port emissions legal (ARB only, 49 state legal, not California) performance cylinder heads. With lightweight 8mm 2.050 intake valves, 1.600 exhaust valves, combustion chamber volumes of 58cc or 72cc, and 70cc exhaust ports, AFR's new 195cc Ford cylinder heads are designed for 331-392 cid engines operating from 2000 rpm to 7000 rpm. A 3/4" thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened pushrods required.

Note: AFR 1381, 1383, 1426 and 1428 Competition package head exhaust port is raised .125 over stock.
Note: Stock 86-93 5.0L must have pistons notched for clearance.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angel mills might require .120" thick intake gasket.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angel mills might require .120" thick intake gasket.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angel mills might require .120" thick intake gasket.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angel mills might require .120" thick intake gasket.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angel mills might require .120" thick intake gasket.

The Ultimate Bolt-on Emissions Legal Street Weapon
The AFR Emissions Legal (ARB only, 49 state legal, not California), 195cc intake port LT4 small block Chevy aluminum cylinder heads are available only in an LT4 angle plug version. These heads feature a 55cc to 65cc combustion chamber with a 64cc exhaust port and a 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.080 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of 2500 rpm to 6500 rpm (higher rpm ranges possible depending on combination of parts), 23° valve angle, and standard valve spacing make this the perfect street head for 350 cid to 383 cid engines. Designed specifically for 1996 Corvettes or LT4 manifold users. No special parts are required, except for the LT4 intake manifold. Dual valve cover bolt pattern is standard.
The exhaust ports are raised .100" over a standard GM L-98 cylinder head.

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angle mills might require .120" Thick intake gasket.

The Ultimate Bolt-on Emissions Legal Street Weapon
The AFR Emissions Legal (ARB only, 49 state legal, not California), 195cc intake port LT4 small block Chevy aluminum cylinder heads are available only in an LT4 angle plug version. These heads feature a 55cc to 65cc combustion chamber with a 64cc exhaust port and a 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.050 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of 2500 rpm to 6500 rpm (higher rpm ranges possible depending on combination of parts), 23° valve angle, and standard valve spacing make this the perfect street head for 350 cid to 383 cid engines. Designed specifically for 1996 Corvettes or LT4 manifold users. No special parts are required, except for the LT4 intake manifold. Dual valve cover bolt pattern is standard.
The exhaust ports are raised .100" over a standard GM L-98 cylinder head.