FloTek

Performance Cylinder Head for Small Block Ford 289 302 351W

$499.99

SKU: 203-505

In Stock
In Stock
Ships by Aug 29
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The FloTek 203-505 is a performance cylinder head engineered for Small Block Ford engines, specifically the 289, 302, and 351W displacements. These heads are designed with as-cast ports, making them suitable for entry-level street performance builds aiming for an operating range from idle up to 5500 rpm. Key specifications include support for camshafts with up to .550 lift. It's important to note that these cylinder heads do not include Thermactor Plugs (EGR). FloTek advises using a pushrod length checker to determine the correct length, as stock pushrods are not compatible with this head. This product is sold individually as a single cylinder head. To order a pair, customers must select a quantity of two. The product is available in various configurations, including bare, 1.94 Assembled, and Flat Tappet Assembled options. For optimal performance, FloTek recommends specific complementary components like the Trick Flow Small Block Ford TFS 51400265, and offers PAC, Manley, or Comp Cam springs, as well as custom builds upon request.

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

BrandFloTek
Part Number203-505
CategoryEngines and Components

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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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