Mast: LS7 285cc 4.125" Cylinder Heads [Camaro Corvette CTS V, LS7]

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Vendor: Mast Motorsports

SKU:

$3,876.00 $4,080.00

Trying to improve on the best factory small-block cylinder heads ever built is no small endeavor. And yes, GM's 12-degree LS7 castings are the best small-block heads of all time-regardless...

Intake Valves

2.200" Solid SS - Hyd Roller

2.200" Hollow SS - Hyd Roller

2.200" Solid Ti - Hyd Roller

2.200" Solid SS - Solid Roller

2.200" 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:

Trying to improve on the best factory small-block cylinder heads ever built is no small endeavor. And yes, GM's 12-degree LS7 castings are the best small-block heads of all time-regardless of engine make-trumping even the legendary Ford Cleveland heads. With a full CNC rubdown, monster 2.20/1.61-inch valves, and raised 270cc intake ports to go along with a flat 12-degree valve angle, factory LS7 heads flow 360 cfm out of the box. That's big-block territory, and at a hair less than $3,000 for a set of fully assembled LS7 heads from your friendly GMPP distributor, they're an exceptional value as well. So naturally, we were quite intrigued when Mast Motorsports announced it had developed its own 285cc LS7 castings that outflows the factory design.

Utilizes the Gen IV LS7 OEM rockers and accepts LS7 intake manifolds
Designed for any new Gen IV short-block with 4.125" bore or larger
The 6-bolt design is compatible with GM LSX and RHS Blocks
Uses a 2.200" intake valve and 1.600" exhaust valve
Has a 285cc intake port
Has a deck thickness of .750"
70cc Combustion Chamber Standard

***Due to the thicker deck and higher valve cover rails some beauty covers are not compatible. When using Corvette (Y-Body) front accessories alternator may need to be clearanced.