Skip to product information
1 of 1

Thompson Motorsports

GM LS Sleeved All Forged 388ci - 440ci - 1000/1200hp

GM LS Sleeved All Forged 388ci - 440ci - 1000/1200hp

Regular price $8,928.85 USD
Regular price Sale price $8,928.85 USD
Sale Sold out
Shipping calculated at checkout.

GM 5.3 Aluminum Gen IV Block

Darton Sleeves

Forged TMS Custom CP Carrillo Pistons

Forged Callies Compstar or Manley H-beam Connecting Rods

Forged Callies Compstar Crankshaft

24x or 58x Reluctor

King Racing Main and Rod Bearings

Rated for 1000hp at the crank (1200hp with ARP Main Stud Upgrade)

12-Month Unlimited Mileage Warranty w/ Purchase of Oil Pump

  • Melling 10295 - For Naturally Aspirated Engines
  • Moroso 22120 - For Engines with Power Adder

Finance Options Available

  • Advancial - 12 Months | 0% Finance Option
  • Affirm (Available at Checkout)
View full details