Sale

Engines and Components› Cylinder Heads and Components

ENGINEQUEST

Assembled Aluminum Cylinder Head

$763.19 $635.95 Save $127.24

SKU: EQ-CH364XA

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Overview

The EngineQuest EQ-CH364XA is an assembled aluminum cylinder head for GM LS-Series engines. It features 2.165" / 1.570" valves, a 246cc intake runner, and a 69cc chamber. This cylinder head is designed for applications with a 4-inch bore or larger.
Show original supplier description
The EngineQuest EQ-CH364XA is an assembled aluminum cylinder head assembly designed for GM LS-Series engines. This head is engineered for complete street performance and is compatible with LS3 through LSX hybrid applications. It features large 2.165" intake and 1.570" exhaust valves, with a 246cc intake runner volume and a 69cc combustion chamber. This configuration is suitable for engines with a 4-inch bore and larger. Constructed from aluminum, this cylinder head offers a balance of strength and weight savings. The angle plug design adds further compatibility options for various intake manifold setups.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandENGINEQUEST
Part NumberEQ-CH364XA
CategoryEngines and Components

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy