DART CYLINDER HEADS- PRO1 LS1 CNC PORTED - 250CC - ASSEMBLED - SINGLE - 11071143

The Pro 1 CNC Series heads from Dart take performance to a new level! The LS CNC cathedral port heads are machined on a dedicated casting with extra thick sections to maintain the proper wall thickness after porting. These CNC ported heads are recommended on engines with 4.000" or larger bore size due to the larger diameter intake valve. 

Features

• Assembled with 1.295" Dual Valve SpringsSprings
• Precise Computer Controlled CNC Machining
• Multi-angle intake seats
• Radiused Exhaust Seats
• 68CC CHAMBER

Accessory Holes Heads are sold individually