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MAST LS7 265 Cylinder Heads

  • MAST Motorsports LS7 265 Heads
  • MAST Motorsports LS7 265 Heads
  • MAST Motorsports LS7 Combustion Chamber
  • MAST Motorsports LS7 Intake Port
  • MAST Motorsports LS7 Exhaust Bowl
  • MAST Motorsports LS7 Intake Bowl
RRP:
$1,599.99
Your Price:
$1,549.99 (You save $50.00)
SKU:
MAST-510-306
Weight:
40.00 LBS
Shipping:
Calculated at checkout
Quantity:


Product Description

MAST Motorsports LS7 265 Cylinder Heads

The engineering staff at MAST Motorsports has refined and reworked the powerful GM LS7 cylinder head design to work with the popular 416/418 LS3 based stroker engines and created their medium bore, LS7 265 cylinder head castings. This rece-bred LS7 based cylinder head features higher flow intake and exhaust runners than any other aftermarket medium bore CNC ported LS7 style cylinder head. Utilizing their many years of hardcore racing cylinder head development, their 5 axis CNC precision porting equipment and high tech 3D solid modeling of the ports during their inception, these heads are far and away the best LS7 cylinder head currently available to the public. All you need is the shortblock that can handle the power they can deliver.

MAST LS7-265 Features:.

•  Utilizes the Gen IV LS7 valvetrain and intake manifold
•  Designed for any new Gen IV short-block with 4.000" or larger bore
•  2.165" intake valve and 1.600" exhaust valve
•  265cc intake runner volume
•  Minimum deck thickness of .750"
•  70cc combustion chamber standard

Each Mast Black Label cylinder head assembly includes:

• A fully CNC machined aluminum cylinder head
• PAC Racing .650" Lift Dual Valve Springs
• Mast lightweight stainless steel intake & exhaust valves
• Lightweight chromemoly steel retainers
• Fully hardened and machined valve locks

* NOTE:  Gaskets, valve covers, rocker arms, rocker stands and push rods not included

PART NUMBER: MAST-510-306 (SOLD EACH)

mast-logo.jpg

Flow Data w/4.065" Bore Plate

Lift

Intake

Exhaust

0.100

82

61

0.200

151

119

0.300

230

188

0.400

292

219

0.500

332

236

0.600

352

251

0.650

360

254

0.700

365

260


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