Forged 6.0 iron block 370/408CI stage 3
Blueprinted GM block Seasoned core
You choice of Diamond or Wiseco shelf piston with GFX file fit rings
Steel ring set
Manley H-Heavy 4340 forged connecting rods with ARP 2000 rod bolts
K1 forged crankshaft with reluctor 3.622" or 4.000"
King main bearings
King rod bearings
Thompson Motorsports single piece racing cam bearings
This short block is rated to 1000HP (1200HP with ARP main stud upgrade)
Frankenstein CNC Ported 243/799 Cylinder Heads
Thompson Motorsports custom ground Camshaft
Billet adjustable timing set
GM MLS head gaskets
ARP Head StudsTrunnion Upgraded Rocker Arms
Melling Select High pressure/High Volume oil pump
Thompson Motorsports high RPM lifter set
GM lifter trays
Thompson Motorsports custom length Chromoly pushrods
Thompson motorsports Professional assembly and 12 month unlimited mileage warranty
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*
*Gen III to Gen IV Short block conversion kit*
LS3 valley cover, gasket and bolt kit
LS3 front cover, gasket, bolt, sensor and harness kit
Cam and knock sensor extension harness
Timing set SELECT ONE (1X OR 4X)
Gen IV lifter buckets (Set of 4)
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.
Fully Forged Iron 6.0 370ci Long Block w/ Cathedral Port Heads 1000/1200hp
- Product Code: P-C4-12
- Availability: 1000
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$11,579.73