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Mast Motorsports

Mast Factory Gen V LT 273cc/58cc 3.780 CNC Port Cylinder Heads Bare w/ OE Valves - CH-LTX-310501

PART NUMBER:
CH-LTX-310501
MPN:
CH-LTX-310501
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.):
3.780
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):
273
Exhaust Runner Volume (cc):
114
Chamber Volume (cc):
58
Intake Valve (in.):
1.928
Intake Material:
Stainless Steel
Exhaust Valve (in.):
1.556
Exhaust Material:
Stainless Steel
Valve Guides Included:
Yes
Valve Guides Material:
Powdered Metal
Intake Seat Material:
OE Seat Material
Exhaust Seat Material:
OE Seat Material
Valve Job Type:
OE Port
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:
Optional
Spring Retainer Material:
N/A
Quantity:
Sold as a Pair
  • Mast Factory Gen V LT 273cc/58cc 3.780 CNC Port Cylinder Heads Bare w/ OE Valves - CH-LTX-310501
  • Mast Factory Gen V LT 273cc/58cc 3.780 CNC Port Cylinder Heads Bare w/ OE Valves - CH-LTX-310501
  • Mast Factory Gen V LT 273cc/58cc 3.780 CNC Port Cylinder Heads Bare w/ OE Valves - CH-LTX-310501
$1,999.00

Description

Mast Factory Gen V LT 273cc/58cc 3.780 CNC Port Cylinder Heads Bare w/ OE Valves - CH-LTX-310501

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. 

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: 3.780" (+)
  • Weight: 30 lbs.
  • Intake Valve Size: 1.928"
  • Exhaust Valve Size: 1.556"
  • 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: .427"
  • Valve Guide OD: .500"
  • Valve Job Type: Newen CNC 5 Angle

Air Flow & Performance Criteria

  • Intake Max. Flow: 302 CFM @ 0.700"
  • Exhaust Max. Flow: 212 CFM @ 0.700"
  • Intake Average Flow: 217 CFM
  • Exhaust Average Flow: 156 CFM
  • Intake Seat Material: OE Seat Material
  • Intake Port Volume: 273cc
  • Exhaust Port Volume: 114cc
  • Standard Chamber Volume: 58cc
  • Port Type: CNC

Materials

  • Cylinder Head Material: 319-T7 Aluminum
  • Intake Valve Seat Material: OE Seat Material
  • 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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