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Why This Tire?
Specifications
| Brand | Air Flow Research |
|---|---|
| Category | Tires |
| Manufacturer Part # | 3670 |
| Subcategory | Cylinder Heads |
| Category Group | Cylinder Heads and Components |
|---|---|
| Ai Subcategory | Cylinder Heads |
| Weight | 94.0 lbs |
Vehicle Compatibility
| Year | Make | Model | Trim |
|---|
Product Description
The Air Flow Research (AFR) BBC 300 CFM CNC Cylinder Heads are a high-performance upgrade for Big Block Chevy engines. These oval port cylinder heads are fully CNC machined for precise porting and optimal airflow, delivering an impressive 300 CFM intake flow. Sold as an assembled pair, they include high-quality valves, springs, and retainers, ready for installation. AFR is a leader in cylinder head technology, known for producing components that significantly boost engine power and efficiency.
Shipping & Returns
Fast Shipping
Standard delivery in 3-7 business days. Expedited options available.
30-Day Returns
Return unused items in original packaging for a full refund.
Questions & Answers
Check your vehicle owner's manual or the tire placard on the driver's side door jamb for the recommended tire size. You can also use our vehicle fitment tool at the top of the page to confirm compatibility. If you're unsure, our support team is happy to help you find the right fit.
We offer a 30-day return policy on unused, unmounted products in their original packaging. Simply contact our support team and we'll provide a prepaid return label. Refunds are processed within 5-7 business days of receiving the returned item. Mounted or used tires are not eligible for return.
We ship directly to your door or to your preferred local tire shop for installation. Most local tire shops offer mounting and balancing for $15-$25 per tire. Just provide your installer's address at checkout and we'll ship right to them.
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