Engines and Components› Cylinder Heads and Components
Airflow Research
SBC/SBF 8mm Intake Valve Set 2.020 X 5.000 O.A.L.
SKU: A03K 7257-8
Moderate — 2–4 hours
Description
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Airflow Research |
| Part Number | A03K 7257-8 |
Videos
$165 Amazon SBC Head vs Budget AFR Enforcer! (Flow Bench!)
Torque Talk with Scott The Hawk: What's the right AFR cylinder head for my engine?
ProMaxx SBC 200cc Head Review With Real Flow Numbers
AFR Enforcer VS Skip White NKB (Budget SBC Head comparison!)
SVE CNC 185cc & AFR Enforcer 185cc Cylinder Heads | 363ci Engine Build w/ Dyno Results
CHEAP, EBAY SBC ALUM HEAD TESTS-ARE THE LOW BUCK CHEVY HEADS WORTH THE PRICE? SPEND MORE FOR AFRS?
SBF AFR Enforcer Head Review With Real Flow Numbers
AFR 220 heads for the S10!!
Watch This Before Buying AFR 185cc Enforcers... I Made a BIG MISTAKE
Improving The SBF AFR Enforcer Heads
AFR: AirFlow Research - Performance Chevy Engine Heads
SEMA 2019: Airflow Research Releases A New Line of Budget-Friendly As-Cast Cylinder Heads
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy