AFR 24° BBC Cylinder Head 377cc Fully CNC Ported, 121cc Chambers, Competition Package
AIRFLOW RESEARCH
SKU #AFR-2015-TI
$5,344.50
AFR 24° BBC Cylinder Head 377cc Fully CNC Ported, 121cc Chambers, Competition Package
SKU
AFR-2015-TI
Qty
AFR 24° BBC Cylinder Head 377cc Fully CNC Ported, 121cc Chambers, Competition Package
The AFR 24° BBC 377cc Fully CNC Ported Cylinder Heads are designed for high-performance big block Chevy racing applications. Ideal for +540 cubic inch large displacement engines operating at or below 7600 RPM, these heads feature fully CNC-machined intake runners, exhaust ports, and combustion chambers. Equipped with titanium retainers and high-quality components, they deliver superior airflow, reaching 437 CFM at 0.900" of lift.
Included Components
- 100% CNC Ported Combustion Chambers
- 100% CNC Ported Exhaust Ports
- 100% CNC Ported Intake Ports
- Competition 5 Angle Valve Job
- 11/32" Intake Valve, 2.300" x 5.500" O.A.L (AFR #7626)
- 11/32" Tulip Exhaust Valve, 1.880" x 5.450" O.A.L (AFR #7631)
- PAC Racing #1224 1.625” OD Solid Roller Dual Valve Spring (275 lbs. on seat, .850” max lift, Max RPM 7400-7600) (AFR #8031)
- 10° Titanium Retainer 1.500" O.D x 1.180" I.D x .765" I.D (AFR #8507)
- 10° 11/32” Valve Keepers with Lashcap Recess (AFR #9005)
- ARP 7/16” Rocker Studs Intake (AFR #6407)
- ARP 7/16” Rocker Studs Exhaust (AFR #6406)
- Adjustable 3/8" Guide Plates (AFR #6109)
- 11/32" Viton Valve Seals (AFR #6613)
- Hardened Spring Cup 1.740" O.D / 1.650" I.D (AFR #8046)
- Intake Valve Seats 2.450" O.D x 2.000" I.D x .375" Deep (AFR #9065)
- Exhaust Valve Seats 2.000" O.D x 1.580" I.D x .375" Deep (AFR #9064)
- 11/32" Intake Bronze Valve Guides .502" O.D x 2.10" O.A.L (AFR #9041)
- 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L (AFR #9042)
377cc Competition Flow Chart
Flow test conducted at 28" of water pressure on Superflow 1020 with a 4.600" bore size.
| Lift (in) | .200 | .300 | .400 | .500 | .600 | .700 | .800 | .900 |
|---|---|---|---|---|---|---|---|---|
| Intake CFM | 168 | 247 | 311 | 355 | 405 | 420 | 429 | 432 |
| Exhaust CFM | 134 | 190 | 240 | 280 | 299 | 308 | 314 | 319 |
Specifications & Features
- Material: A356 Aluminum
- Intake Port Volume: 377cc
- Combustion Chamber Size: 121cc
- Valve Angle: 24°/4° Int, 15°/4° Exh
- Deck Thickness: .750"
- Minimum Bore Diameter: 4.250"
Legal Disclaimer
These products are illegal to operate on any public highway. They are legal only for use on dedicated racing vehicles.
AFR 24° BBC Cylinder Head 377cc Fully CNC Ported, 121cc Chambers, Competition Package
The AFR 24° BBC 377cc Fully CNC Ported Cylinder Heads are designed for high-performance big block Chevy racing applications. Ideal for +540 cubic inch large displacement engines operating at or below 7600 RPM, these heads feature fully CNC-machined intake runners, exhaust ports, and combustion chambers. Equipped with titanium retainers and high-quality components, they deliver superior airflow, reaching 437 CFM at 0.900" of lift.
Included Components
- 100% CNC Ported Combustion Chambers
- 100% CNC Ported Exhaust Ports
- 100% CNC Ported Intake Ports
- Competition 5 Angle Valve Job
- 11/32" Intake Valve, 2.300" x 5.500" O.A.L (AFR #7626)
- 11/32" Tulip Exhaust Valve, 1.880" x 5.450" O.A.L (AFR #7631)
- PAC Racing #1224 1.625” OD Solid Roller Dual Valve Spring (275 lbs. on seat, .850” max lift, Max RPM 7400-7600) (AFR #8031)
- 10° Titanium Retainer 1.500" O.D x 1.180" I.D x .765" I.D (AFR #8507)
- 10° 11/32” Valve Keepers with Lashcap Recess (AFR #9005)
- ARP 7/16” Rocker Studs Intake (AFR #6407)
- ARP 7/16” Rocker Studs Exhaust (AFR #6406)
- Adjustable 3/8" Guide Plates (AFR #6109)
- 11/32" Viton Valve Seals (AFR #6613)
- Hardened Spring Cup 1.740" O.D / 1.650" I.D (AFR #8046)
- Intake Valve Seats 2.450" O.D x 2.000" I.D x .375" Deep (AFR #9065)
- Exhaust Valve Seats 2.000" O.D x 1.580" I.D x .375" Deep (AFR #9064)
- 11/32" Intake Bronze Valve Guides .502" O.D x 2.10" O.A.L (AFR #9041)
- 11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L (AFR #9042)
377cc Competition Flow Chart
Flow test conducted at 28" of water pressure on Superflow 1020 with a 4.600" bore size.
| Lift (in) | .200 | .300 | .400 | .500 | .600 | .700 | .800 | .900 |
|---|---|---|---|---|---|---|---|---|
| Intake CFM | 168 | 247 | 311 | 355 | 405 | 420 | 429 | 432 |
| Exhaust CFM | 134 | 190 | 240 | 280 | 299 | 308 | 314 | 319 |
Specifications & Features
- Material: A356 Aluminum
- Intake Port Volume: 377cc
- Combustion Chamber Size: 121cc
- Valve Angle: 24°/4° Int, 15°/4° Exh
- Deck Thickness: .750"
- Minimum Bore Diameter: 4.250"
Legal Disclaimer
These products are illegal to operate on any public highway. They are legal only for use on dedicated racing vehicles.
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