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Mast: LS3 280cc 4.125 Cylinder Heads [Camaro Corvette CTS V, LS3 LSA]

Mast: LS3 280cc 4.125 Cylinder Heads [Camaro Corvette CTS V, LS3 LSA]

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Vendor: Mast Motorsports

SKU:

$3,876.00 $4,080.00

A head that truly has no competition. The Mast LS3 280 head was designed for customers with big bore LS engines that wanted to run LS3 intakes or superchargers. This...

Intake Valves

2.20" Solid SS - Hyd Roller

2.20" Hollow SS - Hyd Roller

2.20" Solid Ti - Hyd Roller

2.20" Solid SS - Solid Roller

2.20" Solid Ti - Solid Roller

Exhaust Valves

1.600" Solid SS - Hyd Roller

1.600" Solid Inconel - Hyd Roller

1.600" Solid Ti - Hyd Roller

1.600" Solid Inconel - Solid Roller

1.600" Solid Ti - Solid Roller

WEAPON-X +10% Port

Yes

Quantity

Subtotal:

A head that truly has no competition. The Mast LS3 280 head was designed for customers with big bore LS engines that wanted to run LS3 intakes or superchargers. This head is very capable when paired with the proper intake and displacement and has supported over 900hp on pump gas with a Whipple 2.9L consistently.

Heads come standard with PAC 1207X Double Springs for boosted applications; however, if you want the N/A PAC 1204X Beehive Springs, specify in the order notes. Listing also includes the GM rocker arm mounts.