Engines and Components› Cylinder Heads and Components

Nkb

272 Small Block Chevrolet Assembled Aluminum Cylinder Head

$929.00

SKU: NKB-272

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$100 Minimum Order
Non-Returnable Item
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Overview

The NKB NKB-272 is an assembled aluminum cylinder head set designed for small block Chevrolet engines. These heads feature 64cc combustion chambers, 200cc intake runners, and stainless steel valves measuring 2.02 inches for intake and 1.60 inches for exhaust.
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The NKB NKB-272 is an assembled aluminum cylinder head set engineered for small block Chevrolet 327, 350, and 383 applications. These heads feature 64cc combustion chambers paired with 200cc runners to provide improved airflow and cooling efficiency over traditional iron heads. Each head is built with durable components including stainless steel 2.02-inch intake and 1.60-inch exhaust valves, bronze valve guides, and hardened valve seats to ensure long-term reliability under performance conditions. Installation of these cylinder heads may require specific hardware depending on your valvetrain configuration. For engines utilizing 3/8-inch roller rockers, specific studs and compatible guide plates are required for proper operation. These heads offer a significant weight reduction compared to stock iron components, aiding in overall vehicle weight distribution while maintaining competitive power characteristics.

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

BrandNkb
Part NumberNKB-272
CategoryEngines and Components
5,000+ Trusted brands
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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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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