Texas Speed & Performance 332 CID Gen 3 Iron Ruthless Runt LS Short Block

Build a compact, high-output LS combination with the Texas Speed & Performance Iron Ruthless Runt short block. This Gen 3 listing pairs an iron-block foundation with forged pistons, forged H-beam rods and ARP main studs. The supplier rates the assembly to support up to 1,000 HP with appropriate supporting components and tuning, not as guaranteed engine output.

• 332 cubic-inch displacement, marketed in the 5.3L engine family
• GM iron 5.3L block foundation
• GM 3.622-inch nodular-iron crankshaft with six-bolt flange
• TSP/Wiseco forged 3.820-inch pistons with -4cc dish and no valve reliefs
• TSP forged 4340 steel 6.125-inch H-beam connecting rods
• ARP main stud kit
• For naturally aspirated or boosted builds
• Manufacturer part number: TSP-332IR-GEN3-STD

This is a short block, not a complete ready-to-run engine or a guaranteed direct-fit replacement. The linked product is labeled Gen 3, while the general source specifications cover both Gen III/IV blocks and 24x/58x reluctor configurations. Confirm the supplied block generation, reluctor and sensor configuration before ordering. Check cylinder-head and piston-to-valve clearance, electronics and supporting components for your specific build. Collection membership does not establish direct-fit compatibility with every listed vehicle.