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Airflow Research

BBC 265cc CNC Alum Heads Magnum 109cc O/P

Name: BBC 265cc CNC Alum Heads Magnum 109cc O/P
Brand: Airflow Research
SKU: A03K 3610
Price: 2653.00 USD
Availability: InStock

$2,653.00

SKU: A03K 3610

In Stock

Ships by Sep 24

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Professional / shop required

Overview

The Airflow Research 265cc Oval Port Magnum BBC Cylinder Heads are assembled, cast aluminum cylinder heads designed for Big Block Chevy engines. These heads feature a 112cc combustion chamber, 265cc intake runners, and 132cc exhaust runners, with a hydraulic roller camshaft style. They are designed for engine displacements up to 468 cu. in. operating below 6,200 rpm, providing significant bottom-end torque and throttle response.

Key features include CNC-machined combustion chambers and intake runners, a competition 5-angle valve job, and D-port exhaust ports. The heads are sold as a pair and include intake and exhaust valves, valve springs, retainers, locks, seals, and guideplates.

Show original supplier description

Part #: 3610

Cylinder Head - Magnum Street - Assembled - 2.190 / 1.880 in Valves - 265 cc Intake - 109 cc Chamber - 1.550 in Springs - Aluminum - Big Block Chevy - Pair

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	Airflow Research
Part Number	A03K 3610

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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