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TSP 376 CID Gen 5 LT1 Long-Block

TSP 376 CID Gen 5 LT1 Long-Block
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    Base Price:
    Please select your Vehicle above to view product options.
    Select Crankshaft
    Select Connecting Rods
    Select Pistons
    Main Stud Kit
    Cylinder Heads
    Head Gaskets
    Cylinder Head Bolts/Studs
    Engine Crate & Cradle for Shipping
    Optional Engine Oil After Break-In Is Complete
    Base Price: $9,549.99 Customized Price: $9,749.99
    • GM 3.622" Stroke Wet Sump
    • Texas Speed 6.125" Super H-Beam Rods
    • Wiseco 4.07" -2cc
    • ARP Main Stud Kit
    • PRC CNC Ported LT1 Cylinder Heads with .675" EHT Dual Spring Kit
    • GM MLS
    • Factory GM Head Bolts
    • Please Include; Required for Shipping
    • Do Not Want Additional Oil

    • Details
    • Return Policy
    • Fits

    All Texas Speed & Performance 376 CID LT1 engines are now priced with TSP providing a new engine block. There is no core fee or core exhange for the price listed!

    All TSP 376 CID LT1 engines will come standard with your choice of a Callies Magnum wet-sump or dry-sump crankshaft, Texas Speed & Performance 6.125" H-Beam connecting rods with ARP 2000 Bolts, and TSP/Mahle proprietary forged pistons and rings. We do offer upgrades, which can be found in the drop-down menus listed. Any TSP 376 LT1 will use a 4.070" bore piston set, unless otherwise noted. Custom builds are available. We offer multiple brands of connecting rods and crankshafts to suit any type of application. 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! We also offer an expedite service 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 gen 5 LT1 engines will come standard with an ARP main stud kit. GM has had problems with the main caps moving in the gen 5 LT1 block, so we require all of our gen 5 LT1 engines to get the ARP main stud kit to help alleviate any possible issues with this. Also, we will assume that you will be removing the AFM/DOD system with your engine. As such, we will automatically plug the AFM/DOD stacks in the valley of your block during the machining process. If you plan to retain the AFM/DOD feature, please let us know so we can modify your build appropriately.

    Our TSP 376 CID LT1 long-block includes everything in our short-block package plus the following parts that are installed on the engine:

  • Precision Race Components (PRC) CNC-Ported GM LT1 Cylinder Heads with PRC EHT .675" Dual Valve Spring Kit
  • Your Choice of TSP LT1 VVT Camshaft
  • New GM Timing Set
  • New GM Roller Lifter Set
  • TSP Hardened Chromoly Pushrods
  • GM Cylinder Head Bolts & GM MLS Head Gaskets
  • New GM Wet Sump or Dry Sump Oil Pump
  • AFM/DOD Stacks Plugged
  • Other Items Included: Lifter Trays with Bolts, Camshaft Retainer Plate with Bolts, GM Balancer Bolt, & Cylinder Head Dowel Pins

  • All TSP engines will include two oil changes worth 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.

    TSP 376 CID Gen 5 LT1 Long-Block Reviews

    Return Procedure

    To obtain a Return Merchandise Authorization (RMA) please call us at 512-863-0900. No returns will be accepted without an RMA number! Please include a copy of the original receipt with the return. All returns must be postage paid. No COD or Freight collect returns will be accepted. All returns must be packaged properly; we are not responsible for damaged returns that resulted from improper packing. 
    Shipping charges are not refundable. All return orders will be charged a 20% Restocking Fee.

    Return Policy

    You may return any parts to Texas Speed & Performance within 30 days from your date of order. No returns will be accepted after the 30 days have expired. All parts to be returned must be in their original condition. Texas Speed & Performance is not responsible for installation errors or damage due to improper installation or abuse. Parts damaged due to improper installation or abuse, are not returnable, and we are not responsible for any labor expenses, towing, rental car, or other expenses caused by the use of wrong or defective parts during installation. Labor charges by Non-Texas Speed & Performance facility are not covered. It is the installer's responsibility to verify correctness of all parts prior to installation. 
    Shipping charges are not refundable. All return orders will be charged a 20% Restocking Fee.

    All defects in workmanship done by Texas Speed & Performance may be returned for repair, replacement or credit. All repair work will be performed by Texas Speed & Performance. Any unauthorized work done will void any warranty, repair, replacement, or credit that would normally be covered and will render the item as non-returnable.

    Non-Returnable Parts:
     Special-Order Parts, Installed Parts, Painted Parts, and Custom Made Parts cannot be returned for credit for any reason. Electrical parts are not returnable for credit if plugged in or unsealed for any reason. Installed parts and electrical parts are only covered against manufacturer defects and are subject to a warranty exchange only, at the manufacturer's discretion. Labor charges by Non-Texas Speed & Performance facility are not covered.

    When ordering parts and accessories for vehicles still under the manufacturer's warranty, it is the vehicle owners responsibility to ensure that the warranty will not be adversely affected by the installation of these parts. If in doubt, please contact your local servicing dealership or the vehicle manufacturer before ordering. Texas Speed & Performance cannot accept return requests for parts due to vehicle warranty issues. 

    Warranty Parts: Most parts are warranted by the manufacturer, usually for 90 days from the date of purchase, unless specified otherwise. Parts used for racing or competition carry a manufacturer's defect warranty only. They are not warranted for breakage or wear under any circumstance. If you are returning electrical parts for warranty consideration please email customer service, as some manufacturers require the parts be sent directly back to the manufacturer. Texas Speed & Performance reserves the right to charge a restocking fee or refuse any parts that show evidence of being used or installed contrary to manufacturer's instructions, subjected to improper handling, packaging, or shipping by the customer. Labor charges by Non-Texas Speed & Performance facility are not covered.

    Damaged or Missing Parts: In the event your order is damaged or items are missing it must be reported within seven days to 512-863-0900. Claims must be reported by invoice number and part number. Damaged or missing items will be claimed through the applicable shipping company. The customer will be refunded for any damaged or missing parts upon receipt of claim payment from the shipping company. The claim process usually takes 2 - 3 weeks.


    Refunds for returns normally process and credit within 10 days from the date we receive your return at the warehouse. Once the return has been approved and processed, the refund will be credited to the credit card, Paypal account, or GoogleCheckout™ Account you used to buy the merchandise. Please be aware that your bank may take 4-7 business days to post the credit to your account or credit card. If you do not receive a credit after 17 days, please call us at 512-863-0900 and we will respond to you immediately. Shipping charges are not refundable. All return orders will be charged a 20% Restocking fee.

    All information listed is subject to change without notice.

    TSP 376 CID Gen 5 LT1 Long-Block fits the following vehicle(s):
    • 2016 Chevrolet Camaro SS
    • 2017 Chevrolet Camaro SS
    • 2017 Chevrolet Corvette Grand Sport
    • 2014 Chevrolet Corvette Stingray
    • 2015 Chevrolet Corvette Stingray
    • 2016 Chevrolet Corvette Stingray
    • 2017 Chevrolet Corvette Stingray
    • 2014 Chevrolet Silverado 1500 
    • 2015 Chevrolet Silverado 1500 
    • 2016 Chevrolet Silverado 1500 
    • 2017 Chevrolet Silverado 1500 
    • 2014 GMC Sierra 1500 
    • 2015 GMC Sierra 1500 
    • 2016 GMC Sierra 1500 
    • 2017 GMC Sierra 1500 
    [All vehicle fits]