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Drivetrain› Automatic Transmissions and Components

ICT Billet

168-Tooth Steel Flexplate 0.210" Thick

$191.99 $159.99 Save $32.00

SKU: 551356-LS

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Overview

The ICT Billet 551356-LS is a heavy-duty steel flex plate designed for LS series engines. It features 168 teeth and a thickness of 0.210 inches. This flex plate is compatible with all GM torque converter bolt patterns (3 and 6 bolt converters) and works with a wide range of transmissions, including Powerglide, TH400, TH350, 700R4, 4L60e, 4L80E, and 2004R.
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The ICT Billet 551356-LS is a heavy-duty steel flex plate engineered for LS series engines, providing robust performance and reliability. Constructed from durable 0.210" steel and featuring 168 teeth, this flex plate is designed to accommodate a broad spectrum of GM torque converter bolt patterns, including both 3-bolt and 6-bolt configurations. It offers compatibility with numerous transmissions such as Powerglide, TH400, TH350, 700R4, 4L60e, 4L80E, and 2004R, making it a versatile option for LS engine swaps. This flex plate includes multiple bolt patterns to ensure wide-ranging application: 10.75" for 4L60E and 700R4 transmissions, 11.06" for 6L80/90E, and 11.5" for 4L80E, 8L90E, and 10L80/90E transmissions. It also supports a 10.4" bolt pattern. For optimal functionality, a torque converter specifically designed for an LS engine is required, or an adapter part number 51165 can be used for non-LS transmissions. It is important to note that this flex plate is not SFI rated. Furthermore, it will not fit 1999-2000 6.0L engines or LSA/LS9 engines (which use an 8-bolt flywheel) due to their extended length crankshaft flange. This product is proudly made in the USA.

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.

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Specifications

BrandICT Billet
Part Number551356-LS
CategoryDrivetrain
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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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