Engines and Components› Cylinder Heads and Components

FRANKENSTEIN ENGINE DYNAMICS

M311 LS3 Cylinder Head Rect-Port Bare

$1,378.14

SKU: F03T 113002

In Stock
In Stock
Ships by Jun 8
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Non-Returnable Item
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Description

This is a bare, rectangular port cylinder head from Frankenstein Engine Dynamics, part of their M311 series, designed for LS3 engines. It features fully CNC ported 68cc chamber volume, 273cc intake port, 112cc exhaust port, and an 11° valve angle. It is built with high-quality components including stainless steel severe duty valves, custom dual .700” lift valve springs, titanium retainers, and hi-temp silicone exhaust port o-rings.

Fitment

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Specifications

BrandFRANKENSTEIN ENGINE DYNAMICS
Part NumberF03T 113002

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Buy with Confidence

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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