Product Description:
Stage 3 5.7 LS1 346/383 Short Block
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Blueprinted GM block L33 core
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King racing main bearings
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King racing rod bearings
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Thompson Motorsports single piece racing cam bearings
- K1 forged crankshaft with reluctor 3.622" or 4.000"
- K1 4340 forged H-beam connecting rods with ARP 8740 rod bolts
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You choice of Diamond or Wiseco shelf piston
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Steel ring set
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12 month unlimited mileage warranty with the purchase of a new Melling oil pump from TMS
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This short block is rated to 900HP (1100HP with ARP main stud upgrade)
This is a short block only. No heads or camshaft components. We can take this short block and complete it as a long block package which would include heads & camshaft components all assembled. Call for more information on this package.
PREMIUM SHORT BLOCK UPGRADE AVAILABLE IN THE DROP DOWN BOX TO INCLUDE 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 SEAL AND BOLT KIT UPGRADE AVAILABLE IN THE DROP DOWN BELOW TO INCLUDE THE FOLLOWING: FRONT COVER SEAL, FRONT MAIN SEAL, GM CRANK BOLT, ARP CRANK BOLT
All motors could require minor modifications for install (drill and tap holes or clearance). These changes are minor and can be performed with simple common tools. Thompson Motorsports NOR Hawks 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.
