Mast Designed, Manufactured, and Cast LT Black Label Heads.
New for 2020, Mast Engineering Team, adds in the legendary performance of its Black Label product line, and adds in our very own LT Performance Aftermarket Cylinder Head
100% DESIGNED, CAST, MACHINED in the USA.
No fake made in the USA here.
The ultimate upgrade for your LT1 flowing over 380 CFM. Mast Motorsports LT1 Medium Bore Black Label heads are at the forefront of power and performance. Designed from a clean sheet this head is a direct replacement for your stock heads and supports 600+ horsepower on LT1 engines with supporting modifications. If you are looking to upgrade your Gen V LT1 with the best aftermarket LT head on the market, look no further.
- Designed for Gen V LT short-blocks with 4.000" bore or larger
- Compatible with GM Gen V LT
- Accepts Gen IV LT valvetrain and intake manifolds.
- Uses a 2.165" intake valve and 1.600" exhaust valve
- Has a 292cc intake port
- Has a 59.8cc combustion chamber standard
- Has a deck thickness of .750"
- Cast & Machined in the USA!
|Flow Data | 84°F, 28 IN/H20, 36% Humidity|