Item # 31973 BRAND: ATK Engines

ATK HP93 Chevy LQ4 6.0L Base Engine 460HP

HP93 ATK Chevrolet 6.0 H.P. 01-07 Engine Long Block
HP93 ATK Chevrolet 6.0 H.P. 01-07 Engine Long Block
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getAggregateRating, 9.65ms
  • bvseo-msg: HTTP status code of 404 was returned;

Customize this product:

Engine Core Charge H   + $575.00

* Required Fields


Select a customization to add to cart
Save for Later
HP93 ATK Chevrolet 6.0 H.P. 01-07 Engine Long Block

100% Satisfaction Guarantee Since 1978
We stand behind our solutions and customers.

  • • 90 Day Returns
  • • Lifetime Tech Support
ATK HP93 Chevy LQ4 6.0L Base Engine 460HP

Product Overview:


ATK HP93 Chevy LQ4 6.0LBase Engine, or Stage 1 Engine, is designed for those that may have their own component parts already and who also are interested in completing out the build themselves. A GM base engine typically consists of the following: Short Block, Camshaft, Timing set, Cylinder heads, Valve covers, Timing cover, oil pan, oil pump & pick up tube.

Engine Specifications:

  • HP: 460
  • TQ: 470
  • Block: OE LQ4/6.0L Iron
  • Bore/Stroke: up to 4.040 x 3.622
  • Displacement ( up to 371
  • Crankshaft: OE GM 24 tooth reluctor wheel
  • Rods: OE powder metal
  • Pistons: Hypereutectic 9.51 compression
  • Rings: Moly
  • Camshaft: Hyd. Roller
  • Cam Specs: Custom performance grind
  • Timing Chain: OE single roller
  • Cylinder Heads: OE aluminum 71cc/210cc 2.00/1.55
  • Rocker Arms: OE 1.7 ratio
  • Oil Pump: Melling STD Volume

      This ATK engine was designed to be a performance upgrade for LS based vehicles or perfect for a 2001-2007 Chevy Truck LQ4 or LS swap in a hot rod. Expect big mid to upper end power, will have a noticeable idle. For optimal Performance you will need headers, chassis dyno tune and 36lb 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.

      ATK specializes in muscle. With the highest quality internal parts and Dyno Proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty.

      Don't forget the engine paint!
      Engine Paint

    • Warranty

      Click Here for Warranty Information


      Engine Information:

      • Oil: Conventional / Non Synthetic 10W30
      • Oil Filter: Wix or K&N
      • Timing: Set to factory specifications via PCM module (ECM TUNING REQUIRED).
      • Spark Plug Gap: .040”
      • Firing Order: 18726543
      • Octane: 91+
      • Stall Converter: 1800+
      • Exhaust: 1 5/8 Headers
      Notes: This engine replaces the 2001-2007 Chevy 6.0L LQ4 engine. ECM MUST BE TUNED, not doing so can damage the engine.

      Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. . ATK reserves the right to substitute parts used in engines if necessary.


      Shipping is free and lift gate will be provided.

      You will receive warranty information and how to return the core in the mail direct from ATK separate from the delivery of the engine.

      Core Pickup Request

      In the Box


      (1) ATK HP93 Chevy LQ4 6.0L Base Engine 460HP

      Guides & Accessories


      Recommended Components:

      • Flexplate/Flywheel: Stock internally balanced
      • Balancer: Stock internally balanced/per application
      • Intake Manifold: Stock EFI intake
      • Water Pump: Per application
      • Fuel Pump: Stock electric
      • Fuel Injectors: 36lb injectors
      • Spark Plugs: NGK #3186
      • Spark Plug Wires: Factory


      • bvseo_sdk, p_sdk, 3.2.1
      • CLOUD, getReviews, 11.45ms
      • bvseo-msg: HTTP status code of 404 was returned; HTTP status code of 404 was returned;

      Questions & Answers

      What are the cam specs as I will put a Procharger P-1 for added power.

      Asked by: Michael
      For this information with these engines being direct ship from ATK we recommend reaching out to them directly at
      Answered by: ZachC
      Date published: 2022-03-02

      Is this item in stock currently? 

      Asked by: Bob27
      Please contact our Sales team by calling: 800-343-9353 and selecting option 1 or by emailing
      Answered by: Kelly H
      Date published: 2022-03-25

      Are there any core charges with the purchased of the LQ4 and if so how much? Thanks 

      Asked by: Tremec6
      Please contact our Sales team regarding this by emailing or by calling 800-343-9353.
      Answered by: Kelly H
      Date published: 2022-01-19
      • y_2022, m_5, d_18, h_22CST
      • bvseo_bulk, prod_bvqa, vn_bulk_3.0.27
      • cp_1, bvpage1
      • co_hasquestionsanswers, tq_3
      • loc_en_US, sid_31973, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
      • clientName_eastwood
      • bvseo_sdk, p_sdk, 3.2.1
      • CLOUD, getContent, 10.74ms
      ATK HP93 Chevy LQ4 6.0L Base Engine 460HP
      In Stock