TSP – Dart – LS Next Aluminum (Skirted) Dart LS Next Block Kit: 4.125 Bore” , 1/2″ Head Stud

Texas Speed – Dart LS Next Aluminum 4.125″ Bore – Skirted 1/2in Head Stud

The Texas Speed Dart LS Next Aluminum Engine Block provides a strong, lightweight foundation for high-performance Chevy LS engine builds. This skirted aluminum block features a 9.240″ standard deck height, steel 4-bolt main caps, included main studs, and supports bore sizes up to 4.165″.

Key Features

• Aluminum LS Next skirted engine block
• 9.240″ standard deck height
• 4.125″ cylinder bore as shipped
• 4.155″ finished bore recommended
• 4.165″ maximum bore diameter
• 4-bolt steel main caps included
• Main studs included
• Chevy LS main journal configuration
• 1-piece rear main seal design
• Approximate block weight: 115 lbs.

Important Notes

• Cylinder bores are not finish-honed and require final machining for the intended piston combination.
• Cam bearings and freeze plugs are not included.
• Although the maximum bore is 4.165″, Texas Speed recommends a 4.155″ bore.

Note: Final machining and clearances should be determined by the engine builder based on the selected rotating assembly and intended application.