Includes:
- Mast .700" Lift Dual Spring Kit
- Mast Hollow Stainless Intake Valves
- Mast Solid Stainless Exhaust Valves
Mast Motorsports LS3 295 Black Label heads are designed for getting the most out of your 4.125" Bore+ engine. If you are looking to make more power, you have found the right head.
• Dyno proven power •
With supporting upgrades this head will support 700hp+ on a naturally aspirated LS3.
- Designed for any Gen III or IV 4.125" Bore short block.
- Perfect for stroked LS short blocks
- Accepts Gen IV LS7 valvetrain & LS3 Intake manifolds
- Uses a 2.250" intake valve and 1.600" exhaust valve
- 11 Degree Valve angle
- Has a 70cc combustion chamber standard
- Has a deck thickness of .750"
- Cast & Machined in the USA!
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