Home > GM Crate Engines > Base Engine >

ATK LM7-LB-4 Chevy LM7/LS1 383CI Base Engine 540HP+
Chevy LM7 383ci Base Engine 540HP Crate Engine

Alternative Views:

Our Price (USD): $8,304.00
Prop65 Warning This product can expose you to chemicals including chromium (hexavalent compounts), which are known to the state of California to cause cancer and birth defects or other reproductive harm.
For more information go to: www.P65Warnings.ca.gov

Availability:: Usually Ships in 4 to 6 Weeks

Description Technical Specs Engine Info

This is an LM7 (Iron LS1/LS6) based engine with CNC Ported Cathedral Port Aluminum heads making a very streetable 540HP+. 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.

Image is for represenation purposes only.
Features & Benefits
  • All LS Long Blocks will include:
    LS2 Lifter Trays
    LS7 High Rev lifters
    Melling High Pressure Oil Pump
    SA Gear Billet Timing Chain with 9 Keyway adjustment

Share your knowledge of this product. Be the first to write a review »