The ultimate upgrade for your LS3 or LSA engine is here. Mast Motorsports LS3/LSA 255 Black Label heads are at the forefront of power and performance. Designed from a clean sheet this head supports 600+ horsepower on stock bottom end LS3 engines with supporting modifications. If you are looking to upgrade your LS3 or LSA with the best aftermarket LS head on the market, look no further.
|Flow Data w/4.000" Bore Plate|
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