TSP 376 CID Gen 5 LT1 Long-Block

TSP 376 CID Gen 5 LT1 Long-Block

The Texas Speed & Performance 376 CID Gen 5 LT1 Long-Block is built with a brand-new engine block — no core exchange required. Each engine comes standard with premium forged internals and is designed for high-performance Gen 5 LT1 applications.

Short-Block Foundation Includes:

• Choice of Callies Magnum wet-sump or dry-sump crankshaft
• TSP 6.125" H-beam rods with ARP 2000 bolts
• TSP/Mahle proprietary 4.070" forged pistons & rings
• ARP main stud kit installed (required for Gen 5 main cap stability)
• AFM/DOD stacks plugged during machining (unless otherwise requested)

Long-Block Includes (Installed):

• PRC CNC-ported GM LT1 heads with PRC EHT .675" dual valve spring kit
• Your choice of TSP LT1 VVT camshaft
• New GM timing set + Johnson 2110R lifters
• TSP hardened chromoly pushrods
• GM MLS head gaskets + cylinder head bolts
• New GM wet-sump or dry-sump oil pump
• Complete lifter trays, retainer plate, balancer bolt, and dowel pins

All TSP engines include 12 quarts of break-in oil at no additional cost to ensure proper startup protection and ring seal.

Note: Custom upgrades and configurations are available. Contact Texas Speed for an itemized quote, dry-sump requirements, and current build time.