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MTM510-303 - Mast Motorsports LS3 Assembled CNC Aluminum Cylinder Head, Rectangular Port, 11 Degree, 6-Bolt, 69cc, Medium Bore (4.00"-4.070"), Single

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Pricing: $1,709.91


• Designed for any new Gen IV 6.0L or 6.2L engine
• Including LS3, L99, L92, L76, LY6, LSA, and LS9
• Available as packages for LS3 Camaro, Corvette, L99 Camaro, & L76 Pontiac G8
• Accepts Gen IV LS3 valvetrain, valves, & intake manifolds
• Uses a 2.165" intake valve and 1.600" exhaust valve
• Has a 256cc intake port
• Has a 69cc combustion chamber standard

Each Mast Black Label cylinder head assembly includes:

• A fully CNC machined Mast Black Label aluminum cylinder head
• Mast nitrided & micro finished .700 lift beehive valve springs
• Mast lightweight stainless steel intake & exhaust valves
• Mast lightweight steel retainers
• Mast machined locks
• • NOTE: Gaskets, valve covers, rocker arms and pushrods not included

Flow Data w/4.000" Bore Plate
Lift Intake Exhaust
0.100 74 61
0.200 146 119
0.300 222 188
0.400 282 219
0.500 330 236
0.600 360 251
0.700 372 260

Application List


Shipping Information

  • Item Requires Shipping
  • 25.0 lbs.
  • W9.0000” x H22.0000” x L7.0000”

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