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!

All Wiseco pistons will use a 1.2mm/1.2mm/3.0mm ring pack with a steel top ring and Napier second ring. This will be the standard ring pack used with any of our Wiseco exclusive piston sets, and this ring pack will be offered with any Wiseco off-the-shelf piston set. We have the Wiseco and Diamond Racing piston sets listed under separate categories since there are different ring sets offered for each piston manufacturer. All Wiseco piston sets will use the Wiseco/NPR-specific ring sets, and all Diamond Racing piston sets will use a Total Seal ring set. The Diamond Racing piston sets will come standard with a Total Seal plasma moly ring set, and a steel top ring set is available for an additional cost. We do build many engines to keep in stock, and we do our best to offer a variety to suit everyone’s wants/needs. If you are wanting to use our website to get an engine quote, select your desired piston and ring set and list the other piston and ring set as “do not want”. So, if you want a Wiseco piston and ring set, select the appropriate parts and list the Diamond Racing pistons and rings as “Do Not Want” in the drop-down menus. With that said, not all engines will be in stock. The average build time will normally take three to four weeks once all parts are at the machine shop. This is only an estimate since circumstances and wait times will vary. Please give us a call for an accurate, up-to-date time quote.

For any nitrous setup exceeding a 150HP shot or any boosted application exceeding 10 psi, we recommend a steel top ring set. The steel top ring will handle the added heat of the nitrous and boosted applications much better than a plasma moly top ring set. All of our engines with Wiseco pistons will use a Napier second ring for maximum oil control. This is just another step that we take with all TSP short-blocks to ensure you get the best quality possible!

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) Stage 2.5 5.3L Cylinder Heads with 2.02"/1.57" Stainless Steel Valves & PRC Dual Valve Spring Kit with Titanium Retainers

*Your Choice of TSP Camshaft

*LS2-Specific Timing Set

*GM LS7 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 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 Joe Gibbs 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 Joe Gibbs 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!