All Texas Speed & Performance 370 C.I.D. LQ9 short-blocks use a new GM LQ9 6.0L iron block! The standard price includes a fully-assembled GM LQ9 short-block with a factory GM 3.622" stroke crankshaft with your choice of 24X or 58X reluctor wheel.
The standard price also includes your choice of Wiseco 4.03" +12cc, -3.2cc, -11cc, -25cc or Diamond Racing -2cc and -15cc piston sets. All Wiseco pistons offered are built to accommodate LS1, LS2, LS6, L92, LS3, and most aftermarket cylinder heads and valve configuration. Diamond pistons are built to accomodate LS1, LS2, and LS6 cylinder heads.
Any Wiseco or Diamond piston set will use a 4.03" bore piston, unless otherwise noted. Other custom build items are available. We also offer Callies and Lunati crankshafts, as well as Callies, Lunati, and Oliver connecting rods. Every engine will come standard with the necessary oil and coolant plugs already installed in the block. Feel free to give us a call, and we will be more than happy to put an itemized estimate together for you! We also offer additional discounts if you pay via a cashier's check or wire transfer. All engines will ship via truck freight, so if are purchasing online the shipping costs listed will NOT be correct! We will contact you with a shipping cost after your order has been placed. All prices listed do not include the applicable shipping costs!
Our TSP 370 C.I.D. long-block includes everything in our short-block package plus the following parts that are installed on the engine:
- Precision Race Components (PRC) 225cc As-Cast Cathedral Port Cylinder Heads with TSP Dual Valve Spring Kit
- Your Choice of TSP Camshaft
- LS2-Specific Timing Set
- GM/Delphi LS7-Style Roller Lifter Set
- TSP Hardened Chromemoly Pushrods
- GM Cylinder Head Bolts & GM MLS Head Gaskets
- TSP Ported LS6 Oil Pump
- Bolts, Gaskets, & Other GM Items Included: GM Lifter Trays with Bolts, Camshaft Retainer Plate with Bolts, Rear Main Seal Housing Gasket, Timing Cover Gasket, GM Valley Cover Gasket, Oil Pump O-Ring, GM Balancer Pulley Bolt, Oil Pan Gasket, Water Pump Gaskets, Rear Main Seal, Front Crankshaft Seal, Cylinder Head Dowel Pins
We do offer an upgrade to 1/2" head studs for those looking to run a large amount of nitrous or boost. The price listed for the 1/2" head stud upgrade will include the cost of the ARP hardware, as well as the necessary machine work. All of the PRC aftermarket casting cylinder heads already have the larger bolt holes to accommodate 1/2" head studs.
We also offer turn-key long-blocks that will include your choice of oil pan, intake manifold, throttle body, etc. We do offer many upgrades to customize your engine, such as ARP bolts and studs, Cometic head gaskets, etc. Please give us a call, and we will be happy to put an itemized estimate together for you.
GM does offer a Gen III and Gen IV 6.0L iron block. The Gen III block will be similar to an LS1/LS6 block and will use all necessary LS1 covers, gaskets, and components. However, the Gen III block will use the LS2/LS3 cylinder head bolts. The Gen IV block will be an LS2/LS3 style block that will use the LS2/LS3 lifter trays, timing cover with cam position sensor, valley cover, etc. If you are installing the engine into an LS1/LS6-equipped vehicle, you will need to choose the Gen III block. If you are installing the engine into a 2005 or newer vehicle, you will need a Gen IV block. We also offer an expedite service to be able to have your engine built and ready to ship in as little as five business days! The build time will vary according to parts availability. Give us a call for more information!
All TSP engines will include 12 quarts of Driven Racing break-in oil for no additional cost. Proper break-in oil and procedures for your engine are just as important as the build process! The Driven Racing break-in oil allows for proper ring sealing against the cylinder walls upon start-up, as well as for the break-in period once the engine is up and running. Most off-the-shelf engine oils do not have the necessary ZDDP additives to allow for proper break-in of a new engine, and we want to take every precaution possible to ensure that your new TSP engine receives a proper break-in! We also offer the Driven Racing oil for your new engine once your break-in is complete. We recommend using either the HR2 conventional non-synthetic or the LS30 full synthetic oil. Please note that the Driven Racing LS30 is the ONLY synthetic oil we recommend using in your engine because it retains the necessary ZDDP additives.