GM LSX BLOCK
K1 4340 forged crankshaft 3.622" or 4.000"
K1 H-Beam 6.125" connecting rods
King racing narrowed rod bearings
King racing chamfered main bearings
GMPP cam bearings
PREMIUM SHORT BLOCK UPGRADE AVAILABLE INCLUDES THE FOLLOWING:
YOUR CHOICE OF TMS CUSTOM GROUND CAMSHAFT
BILLET ADJUSTABLE TIMING SET
MELLING SELECT HIGH PRESSURE OIL PUMP
CAM RETAINER PLATE
INSTALLATION AND TIMING OF COMPONENTS
ACTIVATION OF YOUR TMS BASIC WARRANTY
*A crate is not required for a customer pickup*
Call for any questions: 972-853-2450
We are located at:
545 Justin Pl.
***dealer and wholesale accounts available, call for details***
**please call for rush orders**
We make every effort to keep these motors in stock, however build times can vary. So please call to verify the build time of your motor.
All motors could require minor modifications for install (drill and tap holes or clearancing). These changes are minor and can be performed with simple common tools. Thompson Motorsports is not responsible for the work required nor does this warrant a reason for the return of the product, even in the case of a direct replacement. We are dedicated to customer service and are more than happy to help with the install in any way possible. Please feel free to call or email with any questions or concerns.
All high performance motors will come with no VVTI or DOD. If the vehicle originally had either or both of these you will need to change to a LS2 front cover and LS2 valley cover to eliminate. You will also need to alert your tuner to the changes for PCM changes.
LSx with TMS forged rotating assembly and Diamond forged pistons
- Product Code: F21
- Availability: 1000