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Dart Boostline 1500hp rated short block
Dart Boostline 1500hp rated short block
$6,999.00
Dart Aluminum Short Block 388/427
[F4]
  Pin It  $9,399.00
Dart Aluminum Short Block 388/427
Click to enlarge

DART LSNEXT Alluminum Skirted for traditional oil pan mount
Dart SHP LSNEXT Finishing kit 
K1 crankshaft
K1 rods with ARP 2000 rod bolts
Diamond or Wiseco pistons
balance crankshaft
King racing narrowed rod bearings
King racing chamfered main bearings MB5777XP

Rated for 1300hp

 

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

HARDWARE

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.

Nevada, TX

75173

 

***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.

PLEASE READ ALL OF THE DISCLAIMER PRIOR TO RECEIVING YOUR MOTOR, IT IS IMPORTANT THAT YOU UNDERSTAND WHAT YOU ARE PURCHASING AND WHAT OUR POLICIES ARE!

DO NOT ACCEPT SHIPMENT IF DAMAGED. IF YOUR PRODUCT ARRIVES DAMAGED AND IS SIGNED FOR BY ANYONE INCLUDING THE PURCHASER OR RECEIVER (DESIGNATED OR NOT) YOU THE PURCHASER ACCEPT ALL RESPONSIBILITY FOR THE PRODUCT IN THE CURRENT CONDITION. WE DO NOT ACCEPT ANY RESPONSIBILITY FOR ANY PRODUCT DAMAGED IN SHIPMENT AND ACCEPTED AT THE RECEIVING END. ALWAYS DECLINE SHIPMENT IF IN QUESTION! CALL TMS AT 972-853-0518 IMMEDIATELY WITH ANY CONCERNS BEFORE SIGNING FOR ANYTHING.

 

Always check your motor for the correct reluctor before installing. You need to verify that you have the correct crankshaft and camshaft reluctor prior to install. We make every effort to use the correct reluctor but with the many variances that GM has in PCMs and motors it is always a possibility that you receive the incorrect one. We will be more than happy to correct the problem but are not responsible for a motor that has been installed with the incorrect components. Please notify us as soon as the problem is noticed so we can correct it in the most timely manner possible. YOU CAN CANCEL THIS ORDER ON THE DAY OF PURCHASING WITH NO CANCELLATION FEE.  All Cancelations will receive a 25% Cancellation fee if not cancelled by close of business the day of purchase.   ALL BUILD DATES ARE AN ESTIMATE AND CAN CHANGE DUE TO UNFORESEEN CIRCUMSTANCES.  ONCE MOTOR IS COMPLETED THERE ARE NO REFUNDS.  REQUIRES PROFESSIONAL INSTALLATION

 

Core blocks are offered in many Thompson Motorsports builds. Core means it was at one time a used block and will be indicated as a core on your estimate/invoice. Visual imperfections are likely as they are used, You will see things such as but not limited to rust color in coolant passages, rings around water pump inlet/outlet and head to block passage way, rough exterior of block. These will not effect the performance or function of the block and are designed to be a trade off on price for appearance. If you want a new block please purchase one, We can change to a new block at an additional cost on most any builds. If you have made a purchase and want to change to a new block it must be done so within 5 business days of the original purchase. On the 6th business day or beyond there will be a charge as well as an increased build time from the change.

 

PROFESSIONAL INSTALLATION IS REQUIRED ON ALL PARTS AND MOTORS. We at Thompson Motorsports sell racing components. They are not direct replacement. Most of the parts and components sold are easily installed but when changing from one product to another that was not originally designed to be in your vehicle minor and at times major changes will need to be made. If you are un able to do so STOP and find a professional. We have a list of installers nationwide that can handle your needs. There is no possible way for us to include all things you can come across when installing racing parts or motors therefore if you are not able to work around changes please find someone who is capable.

 

Warranty: If a warranty is purchased it is 365 days from the date of purchase with unlimited mileage. The warranty covers any problems with our products. This means if you have a connecting rod break you will be responsible for removal and shipping of the motor for the free warranty repairs to be made if done so within the 365 days of purchase. If you bend several rods, melt pistons, torch heads, improperly install a motor or damage it due to improper tuning or use it is not covered in any way however, we will work with you to find a resolution and get you back in operation.

 

In the end we are here to help. We want to ensure you have a great experience with TMS. If  you have any questions or concerns feel free to contact us via phone 972-853-2450,  Sales@thompsonmotorsports.net or by facebook messenger at Thompson Motorsports of Texas. We will help you in any way we possibly can.

Thank you!

Available Options:
Windage Tray:
This product was added to our catalog on Tuesday 05 February, 2019.
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