TSP 418 C.I.D. LS3/L99/LSA Short-Block

TSP 418 C.I.D. LS3/L99/LSA Short-Block

The Texas Speed & Performance 418 C.I.D. LS3/L99/LSA Short-Block is built using a brand-new GM L92/LS3 aluminum block and comes fully assembled with a 4.00" stroke crankshaft and your choice of 24X or 58X reluctor. This is a proven foundation for high-performance street, strip, and boosted builds.

Key Features:

• New GM L92/LS3 aluminum block
• 4.00" stroke crankshaft with 24X or 58X reluctor
• Uses 4.070" or 4.080" bore piston sets (unless noted)
• Choice of Wiseco, CP, Diamond, or Mahle 2618 forged pistons
• Lowered ring lands for nitrous/boost capability
• Oil and coolant plugs pre-installed

Available Options:

• Optional LS1 conversion package (LS2 timing cover/valley cover/lifter trays, LS2 1X timing set, and harness extensions)
• Upgrade to 1/2" head studs (includes ARP hardware + machining) — requires PRC aftermarket cylinder heads
• Multiple connecting rod and crankshaft brand options available

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

Note: Custom builds are available. Verify intended cylinder head choice if selecting 1/2" head studs, and contact Texas Speed for an itemized quote.