TSP 347 C.I.D. Assembled Long-Block

All Texas Speed & Performance 347 CID short-blocks use a new GM 5.3L or LS6 aluminum block! The standard price includes a fully-assembled GM aluminum short-block with a factory GM 3.622" stroke crankshaft with your choice of 24X or 58X reluctor wheel. The GM 5.3L aluminum engine block is a very popular choice to use in 347, 383, and 395 CID applications due to its lower cost. It has excellent benefits, such as bay-to-bay breathing, that make it very durable to use in the build. GM has discontinued the LS1/LS6 bare engine block, so we no longer offer the builds with this option. The standard price will also include your choice of Wiseco +12cc, -3.2cc, -11cc, or -25cc piston set or Diamond Racing -2cc flat-top or -8.6cc dished pistons.

Any Wiseco piston set will use a 3.903" bore piston, and any Diamond Racing piston set will use a 3.905" bore piston. Custom builds are available. We offer multiple brands of connecting rods and crankshafts to suit any type of application. 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 you 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 347 CID long-block includes everything in our short-block package plus the following parts that are installed on the engine:

Precision Race Components (PRC) As-Cast 225cc Cylinder Heads w/ TSP Dual Spring Kit w/ PAC .660" Springs & Titanium Retainers
Your Choice of TSP Camshaft
Double-Roller Timing Set
Johnson 2110R Lifters
TSP Hardened Chromemoly Pushrods
GM Cylinder Head Bolts & GM MLS Head Gaskets
TSP Ported LS6 Oil Pump
Bolts, Gaskets, & Other GM Items Included: LS1 Lifter Trays with Bolts, Camshaft Retainer Plate with Bolts, Rear Main Seal Housing Gasket, Timing Cover Gasket, LS1 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. We also offer expedited 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!

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.

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.