• 1500HP DART 388/427 w/ Frankenstein M311 Boost Monster Square Port Heads

Dart Eliminator 388 or 427 1500HP


Dart SHP LSNEXT Finishing kit 

CP Carrillo Pistons GFX file fit rings

Callies Compstar Xtreme Connecting Rods

Callie’s Compstar Center Counter Weighted Crankshaft 

balance crankshaft

King main bearings

King rod bearings


Frankenstein Thompson Edition M311 Boost Monster long block conversion

11* CNC ported aftermarket casting 6 bolt heads

Manley Stainless intake - Inconel exhaust valves

CHE bronze guides

FED .700" dual valve springs with titanium retainers

Thompson Motorsports custom ground Camshaft

Billet adjustable timing set

Melling Select High pressure/ High Volume oil pump 

Cometic MLS head gaskets

ARP 6 Bolt Head Studs

Billet Rocker Rails

Trunnion Upgraded Rockers 

Johnson lifter set 

LSX 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)***


*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


Finance Options

12 Month | 0% Finance Option - https://www.thompsonmotorsports.net/advancial-financing.php 

Affirm Financing - https://www.thompsonmotorsports.net/affirm-financing.php 

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.

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1500HP DART 388/427 w/ Frankenstein M311 Boost Monster Square Port Heads

  • Product Code: P-F2-M311
  • Availability: 1000
  • $18,189.99

Available Options

Tags: Thompson Motorsports, TMS edition, racing engines, aftermarket engines, long blocks, TMS Long Block Package