• Fully Forged Aluminum LS3 376/416 Short Block 900HP

Blue printed New LS3 aluminum block Gen IV

Blue printed New LS3 aluminum block Gen IV

ACL coated racing main bearings

Thompson Motorsports single piece racing cam bearings

K1 forged crankshaft with reluctor 3.622" or 4.000"

Manley H-Heavy 4340 forged connecting rods with ARP 2000 rod bolts

You choice of Diamond or Wiseco shelf piston with GFX file fit rings

Steel ring set

This short block is rated to 900HP (1100HP with ARP main stud upgrade)


12 month unlimited mileage warranty with the purchase of a new Melling oil pump from TMS (if adding the premium short upgrade no need to add oil pump for warranty)

 

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

***Cam Chart Below***

 ****PRICE FOR PREMIUM UPGRADE IS SPLIT by the Upgrade drop down and camshaft drop down****
*** YOU MUST CHOOSE A CAMSHAFT FOR A PREMIUM SHORT UPGRADE- you can also choose a camshaft without the upgrade***


For warranties and policies: https://www.thompsonmotorsports.net/warranties-and-policies.php  

***If, turbo, supercharged, or Stroker motor please add a High Pressure/High Volume oil pump for warranty"(if you do not add this pump for these application warranty will not be valid)***


*** CRATE AND ENGINE STAND REQUIRED FOR SHIPPING***

*A crate is not required for a customer pickup, only an engine stand*

 

Call for any questions: 972-853-2450

We are located at: 

545 Justin Pl.

Nevada, TX

75173

 

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.





TURBOINT DUR @ .050"EXH DUR @ .050"INT LIFTEXH LIFTLSAADV
STAGE 12262320.5780.5871154
STAGE 2 2302350.6250.6251165
STAGE 32402460.630.63116.56
STAGE 42472530.630.631176

CENT BLOWERINT DUR @ .050"EXH DUR @ .050"INT LIFTEXH LIFTLSAADV
STAGE 1 up to 800HP2262320.5780.5871154
STAGE 2 800-1200HP2362500.6250.6251154
STAGE 3 1000-1400HP2402560.6250.6251154
PDS BLOWERINT DUR @ .050"EXH DUR @ .050"INT LIFTEXH LIFTLSAADV
STAGE 1 FOR 1.92222350.5950.5951204
STAGE 2 FOR PORTED 1.9 OR 2.32332490.630.61204
NA CATHEDRALINT DUR @ .050"EXH DUR @ .050"INT LIFTEXH LIFTLSAADV
STAGE 1 UP TO 125 NITROUS2162240.5530.5531174
STAGE 2 UP TO 125 NITROUS2222250.5610.5781124
STAGE 3 UP TO 150 NITROUS2262320.5780.5871124
STAGE 4 UP TO 200 NITROUS2322380.6250.6251124
NA SQUARE PORTINT DUR @ .050"EXH DUR @ .050"INT LIFTEXH LIFTLSAADV
STAGE 1 UP TO 125 NITROUS2162240.5530.5531174
STAGE 2 UP TO 200 NITROUS DO NOT MILL HEADS ON STOCK SHORT BLOCK2332390.630.631124
STAGE 3 UP TO 200 NITROUS NOT FOR STOCK SHORT BLOCK2362420.6250.6251134
STAGE 4 UP TO 250 NITROUS NOT FOR STOCK SHORT BLOCK2402560.6250.6251134

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Fully Forged Aluminum LS3 376/416 Short Block 900HP

  • Product Code: E4
  • Availability: 997
  • $5,839.00
  • $5,339.00


Available Options


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Tags: short blocks, engines, TMS engines