Engines and Components› Cylinder Heads and Components
Allied Motor Parts
PR4 Cylinder Head
SKU: ALL-20244
Advanced — 4+ hours
Description
This cylinder head is precision-engineered and manufactured to ensure optimal engine performance. It is a suitable replacement for a b18a1 head or a pr4 head.
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 | Allied Motor Parts |
| Part Number | ALL-20244 |
| Category | Engines and Components |
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.
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