LS7 265 Black Label | Assembled Pair of Cylinder Heads
Mast Motorsports LS7 265 Black Label heads are designed for getting the most out of your 4.000"+ bore engine. If you are looking to make more power with your 6.0L, LS3, LSA or other 4.000" engine, you have found the right head.
- Solid Stainless Intake Valves
- Solid Stainless Exhaust Valves
- Premium Dual Spring Kit
- Rocker Stands for GM Rocker Arms
💪 Dyno proven power. 💪
LS7 performance for your LS3 LS2 or other 4.000" or larger bore LS engine! Ideal on stroked engines, this LS7 265 head was designed from the ground up.
- Utilizes the Gen IV LS valve-train and intake manifold
- Designed for any new Gen IV short-block with 4.000" bore or larger
- Uses a 2.165" intake valve and 1.600" exhaust valve
- 11 Degree Valve angle
- Has a 265cc intake port
- Has a deck thickness of .750"
- Combustion chamber 68cc
|Flow Data w/4.065" Bore Plate|