AFR lightweight Phenolic carburetor spacers for 4150 style carbs are available in an 1" thick open or tapered four hole version. Both versions will act as a heat barrier between the manifold and carburetor to keep the fuel in the float bowls cooler, as we
AFR lightweight Phenolic carburetor spacers for 4150 style carbs are available in an 1" thick open or tapered four hole version. Both versions will act as a heat barrier between the manifold and carburetor to keep the fuel in the float bowls cooler, as we
Aluminum Push-In Breather with 1" Neck is for use with AFR valve covers.
Aluminum Push-In Breather with 1" Neck is for use with AFR valve covers.
This aluminum PCV valve with 3/4" neck is recommended for use with AFR valve covers. AFR's PCV valve come in a polished finish.
This aluminum PCV valve with 3/4" neck is recommended for use with AFR valve covers. AFR's PCV valve come in a polished finish.
This T&D Shaft Mount System is designed for AFR 227c, 235cc, and 245cc with a 1.5 rocker ratio and .450 offset. Get the most out of your AFR cylinder heads with these high quality shaft mount systems from T&D Machining.
This T&D Shaft Mount System is designed for AFR 227c, 235cc, and 245cc with a 1.5 rocker ratio and .450 offset. Get the most out of your AFR cylinder heads with these high quality shaft mount systems from T&D Machining.
This T&D Shaft Mount System is designed for AFR 227c, 235cc, and 245cc with a 1.6 rocker ratio and .450 offset. Get the most out of your AFR cylinder heads with these high quality shaft mount systems from T&D Machining.
This T&D Shaft Mount System is designed for AFR 227c, 235cc, and 245cc with a 1.6 rocker ratio and .450 offset. Get the most out of your AFR cylinder heads with these high quality shaft mount systems from T&D Machining.
This T&D Shaft Mount System is designed for AFR 245cc NPP with a 1.6 rocker ratio and .550 offset. Get the most out of your AFR 245cc cylinder heads with these high quality shaft mount systems from T&D Machining.
This T&D Shaft Mount System is designed for AFR 245cc NPP with a 1.6 rocker ratio and .550 offset. Get the most out of your AFR 245cc cylinder heads with these high quality shaft mount systems from T&D Machining.
AFR’s 180cc "Street" heads are a cost effective performance choice over re-worked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for street, towing, or street/strip engines with displacements up to 383 cubic inches, operating up to 6000 RPM. Legal for 1994 and older emissions controlled vehicles under CARB EO #D-250-2. Component upgrade and machining options are available to customize AFR Heads to your specific build (see pg. 45). To ensure trouble free operation of AFR cylinder heads & parts please view the footnotes on pg. 50 for additional information.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 90% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-Angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.020" x 4.900" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" Overall Valve Length | |
|
PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams |
|
| 7° Chrome Moly Retainers 1.245" O.D x .885" I.D x .655" I.D | |
| 7° Bead Lock Valve Keepers | |
| ARP 3/8" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | |
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | |
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| 180cc Street Head Flow Chart | ||||
| .200 | .300 | .400 | .500 | |
| Int | 138 | 198 | 240 | 260 |
| Exh | 110 | 158 | 190 | 207 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060"; intake 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
180cc
|
| Intake Port Dimension |
2.050" H x 1.250" W x 5/16° Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
64cc
|
| Exhaust Port Dimension |
1.450" H x 1.550" W
|
| Exhaust Port Location |
.100" Raised
|
| Combustion Chamber Size |
65cc or 75cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.460" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 60cc Maximum
|
| Angle Mill |
.009" per cc 55cc Maximum
|
| Note: Angle mills might require .120 thick intake gasket. | |
| Minimum Cross Sectional Area |
1.810 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
| Carb EO# |
D-250-2
|
| Recommended Components: | |
| Intake Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1003 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| AFR Stud Girdle | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3924
|
AFR’s 180cc "Street" heads are a cost effective performance choice over re-worked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for street, towing, or street/strip engines with displacements up to 383 cubic inches, operating up to 6000 RPM. Legal for 1994 and older emissions controlled vehicles under CARB EO #D-250-2. Component upgrade and machining options are available to customize AFR Heads to your specific build (see pg. 45). To ensure trouble free operation of AFR cylinder heads & parts please view the footnotes on pg. 50 for additional information.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 90% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
|
Competition 5-Angle Valve Job |
|
| 8mm Bead Lock Intake Valve, 2.020" x 4.900" Overall Valve Length | |
| 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" Overall Valve Length | |
|
PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams |
|
| 7° Chrome Moly Retainers 1.245" O.D x .885" I.D x .655" I.D | |
| 7° Bead Lock Valve Keepers | |
| ARP 3/8" Rocker Studs | |
| Adjustable 5/16" Guide Plates | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | |
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep | |
| Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep | |
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L | |
| 180cc Street Head Flow Chart | ||||
| .200 | .300 | .400 | .500 | |
| Int | 138 | 198 | 240 | 260 |
| Exh | 110 | 158 | 190 | 207 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 4.060"; intake 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
180cc
|
| Intake Port Dimension |
2.050" H x 1.250" W x 5/16° Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
64cc
|
| Exhaust Port Dimension |
1.450" H x 1.550" W
|
| Exhaust Port Location |
.100" Raised
|
| Combustion Chamber Size |
65cc or 75cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
23°
|
| Valve Spring Pocket Diameter |
1.460" O.D
|
| Max Valve Spring Pocket Machining |
1.750" O.D
|
| Warning: Do not machine spring pad any deeper. | |
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill |
.006" per cc 60cc Maximum
|
| Angle Mill |
.009" per cc 55cc Maximum
|
| Note: Angle mills might require .120 thick intake gasket. | |
| Minimum Cross Sectional Area |
1.810 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
| Carb EO# |
D-250-2
|
| Recommended Components: | |
| Intake Gasket | |
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket | |
| Head Gasket, 350cid Fel-Pro #1003 | |
| Head Gasket, 400cid Fel-Pro #1014 | |
| SB Chevy Head Bolt Kit, ARP #134-3701 | |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | |
| Head Bolt Washers, Manley | |
| AFR Stud Girdle | |
| Suggested Manifold | |
| Spark Plug Starting Range |
Autolite 3924
|
AFR is proud to announce the release of our new #4812 dual plane intake manifold for the popular small block Chevy engine platform. Developed to match the port designs of our popular cylinder heads as closely as possible, providing an optimized intake tract for increased performance. These As-Cast pieces were modeled using our 195cc program and provide the best fitment out of the box, hands down. Perfect for applications with an RPM range up to 6,500 RPM
AFR is proud to announce the release of our new #4812 dual plane intake manifold for the popular small block Chevy engine platform. Developed to match the port designs of our popular cylinder heads as closely as possible, providing an optimized intake tract for increased performance. These As-Cast pieces were modeled using our 195cc program and provide the best fitment out of the box, hands down. Perfect for applications with an RPM range up to 6,500 RPM
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