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Mast Motorsports

Mast Factory Gen V LT 301cc/60cc 4.065 CNC Port Cylinder Heads w/ Aftermarket Valves - Direct Injection - CH-LTX-310514

PART NUMBER:
CH-LTX-310514
MPN:
CH-LTX-310514
Availability:
Ships from Manufacturer
Shipping:
Free Over $98 In U.S. 48
Type:
Gen V LT Cylinder Heads
Material:
319-T7 Aluminum
CNC Machined Intake Runner:
Yes
CNC Machined Exhaust Runner:
Yes
CNC Machined Combustion Chamber:
Yes
Minimum Bore Size (in.):
4.065
Bolts Per Cylinder:
4
Assembled:
No
Intake Valve Angle (°):
12.5 x 2.61
Exhaust Valve Angle (°):
12 x 2.38
Intake Runner Volume (cc):
301
Exhaust Runner Volume (cc):
112
Chamber Volume (cc):
60
Intake Valve (in.):
2.165
Intake Material:
N/A
Exhaust Valve (in.):
1.590
Exhaust Material:
N/A
Valve Guides Included:
Yes
Valve Guides Material:
Powdered Metal
Intake Seat Material:
Ductile Iron
Exhaust Seat Material:
OE
Valve Job Type:
Newen CNC 5 Angle
Rocker Stands Included:
Yes
Valve Springs Included:
No
Valve Spring Type:
N/A
Valve Spring Max Lift (in.):
N/A
Closed Spring Pressure:
N/A
Open Spring Pressure:
N/A
Retainers Included:
No
Spring Retainer Material:
N/A
Quantity:
Sold as a Pair
  • Mast Factory Gen V LT 301cc/60cc 4.065 CNC Port Cylinder Heads w/ OE Valves - Direct Injection - CH-LTX-310512
  • Mast Factory Gen V LT 301cc/60cc 4.065 CNC Port Cylinder Heads w/ Aftermarket Valves - Direct Injection - CH-LTX-310514
  • Mast Factory Gen V LT 301cc/60cc 4.065 CNC Port Cylinder Heads w/ OE Valves - Direct Injection - CH-LTX-310512
$2,499.00

Description

Mast Factory Gen V LT 301cc/60cc 4.065 CNC Port Cylinder Heads w/ Aftermarket Valves - Direct Injection - CH-LTX-310514

The Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. 

NOTE*** if you are using the direct injection system- 2022+ applications require 6mm injectors- Older Models use 7.5mm injectors.  This will also matter if you are using a DI injector plug kit.  

Mast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. 

Dimensional Specs

  • Bore Size: 4.065" (+)
  • Weight: 30 lbs.
  • Intake Valve Size: 2.126" OE/2.165" Large Valve
  • Exhaust Valve Size: 1.590"
  • Valve Stem Diameter: 8mm
  • Valve Length: 5.550"
  • Intake Valve Angle: 12.5°x2.61°
  • Exhaust Valve Angle: 12°x2.38°
  • Valve Spring Pocket Diameter: 1.325"
  • Valve Spring Install Height: 1.880"
  • Head Stud Size: .472"
  • Valve Guide OD: .500"
  • Valve Job Type: Newen CNC 5 Angle

Air Flow & Performance Criteria

  • Intake Max. Flow: 350 CFM OE 379 CFM Large Valve @ 0.700"
  • Exhaust Max. Flow: 214 CFM @0.700"
  • Intake Average Flow: 251 CFM OE 270 CFM Large Valve
  • Exhaust Average Flow: 157 CFM
  • Intake Seat Material: OE Seat Material/Ductile Iron (Large Valve)
  • Intake Port Volume: 301cc
  • Exhaust Port Volume: 112cc
  • Standard Chamber Volume: 60cc
  • Port Type: CNC

Materials

  • Cylinder Head Material: 319-T7 Aluminum
  • Intake Valve Seat Material: OE Seat Material/Ductile Iron (Large Valve)
  • Exhaust Valve Seat Material: OE Seat Material
  • Deck Thickness: .300"
  • Rocker Stand Type: Pedestal
  • Rocker Arm Type: LS7 Exhaust 1.8 Ratio
  • Guide Material: Powdered Metal

General

  • Rocker Stand Type: Pedestal
  • Rocker Stands Included: Built-In
  • Rocker Stand Dowels Included: N/A
  • Uses Stock Rocker Bolts: No
  • Rocker Bolts Included: No
  • Rocker Arm Type: LS7 Exhaust 1.8 Ratio
  • Head Bolt QTY: 4 Bolt Style
  • Valve Cover Rail Height: + ½ inch
  • Can use OE Valve Cover: Yes

Custom Options Available

  • Head Assembly
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