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ATK ENGINES

LQ4 408CI STROKER ENGINE

$14,265.60

SKU: A040 LS01C

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

This LQ4/408CI Stroker with LS3 Aluminum heads is making 600HP+. Expect big mid to upper end power, will have a noticeable idle. For optimal performance you will need headers, aftermarket intake, chassis dyno tune and bigger injectors. Your engine may not necessarily come with all components listed, but they are listed as our recommendations of parts to run for optimal performance.

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.

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Specifications

BrandATK ENGINES
Part NumberA040 LS01C

Videos

ATK Performance crate engine review

ATK Performance crate engine review
ATK #LS01C LQ4 408CI Stroker 620+HP!

ATK #LS01C LQ4 408CI Stroker 620+HP!
Building A Chevy Stroker From Scratch With An LQ4 Iron Block - Engine Power S1, E9

Building A Chevy Stroker From Scratch With An LQ4 Iron Block - Engine Power S1, E9
Budget NA 408” LS Build @richardholdener1727 Style!!

Budget NA 408” LS Build @richardholdener1727 Style!!
ATK's new LS 408CI Stroker!.AVI

ATK's new LS 408CI Stroker!.AVI
Making 1000hp From a 408 Stroker!

Making 1000hp From a 408 Stroker!
Build the Ultimate LQ4/LQ9: Boost-Ready LS Power Guide!

Build the Ultimate LQ4/LQ9: Boost-Ready LS Power Guide!
408 LS Stroker Build: Part 1

408 LS Stroker Build: Part 1
ATK #LS01C Custom LS 408CI Stroker 600+HP!

ATK #LS01C Custom LS 408CI Stroker 600+HP!
Building a 408 Stroker from a junkyard engine!

Building a 408 Stroker from a junkyard engine!

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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