LSXCELERATION
Mast Black Label GM LS7 265cc/70cc 11° CNC Cylinder Head - Bare CH-LS7-600192
- PART NUMBER:
- CH-LS7-600192
- MPN:
- CH-LS7-600192
- Availability:
- Ships from Manufacturer
- Type:
- LS7 Cylinder Heads
- Material:
- A356-T6 Aluminum
- CNC Machined Intake Runner:
- Yes
- CNC Machined Exhaust Runner:
- Yes
- CNC Machined Combustion Chamber:
- Yes
- Minimum Bore Size (in.):
- 4.000
- Bolts Per Cylinder:
- 6
- Assembled:
- No
- Valve Angle (°):
- 11
- Intake Runner Volume (cc):
- 265
- Exhaust Runner Volume (cc):
- 106
- Chamber Volume (cc):
- 70
- Intake Valve (in.):
- 2.165
- Intake Material:
- N/A
- Exhaust Valve (in.):
- 1.600
- Exhaust Material:
- N/A
- Valve Guides Included:
- Yes
- Valve Guides Material:
- Bronze
- Intake Seat Material:
- Ductile Iron
- Exhaust Seat Material:
- Ductile Iron
- Valve Job Type:
- Newen CNC 5 Angle
- Rocker Stands Included:
- Yes
- Rocker Stand Material:
- Mast Billet
- 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 Individually
Description
Mast Black Label GM LS7 265cc/70cc 11° CNC Cylinder Head - Bare CH-LS7-600192
Mast Motorsports offers the most comprehensive LS & LT Line of Cylinder Heads. Starting with a raw casting, and complete the machining process 100% in house. Mast designs and manufacture their castings exclusively with their foundry partner. Mast Castings have been designed to withstand the extremes of all forms of racing and performance. Manufactured from A356 T6 Material, they are fully heat treated and pressure tested. Mast completes the manufacturing process using state of the art Hurco 5 Axis CNC machines – from raw casting to completed head in Nacogdoches, Texas. A premium casting and cylinder isn’t complete unless you match it with premium components. Mast exclusively utilizes Made in the USA CHE Valve Seats and Valves Guides to complement the premium Black Label Cylinder Heads. There is no question CHE offers the best and finest in materials, machining, and longevity that ensures years of performance and quality. Finishing and valve jobs are completed using only the best CNC valve job process utilizing a Newen CNC valve cutting machine.
Dimensional Specs
- Bore Size: 4.000" (+)
- Weight: 28 lbs.
- Intake Valve Size: 2.165"
- Exhaust Valve Size: 1.600"
- Valve Stem Diameter: 5/16"
- Valve Length: 5.450"
- Valve Angle: 11°
- Valve Spring Pocket Diameter: 1.65"
- Valve Spring Install Height: 1.800"
- Head Stud Size: .493"
- Valve Guide OD: .502"
- Valve Job Type: Newen CNC 5 Angle
Air Flow & Performance Criteria
- Intake Max. Flow: 370 CFM @ 0.700"
- Exhaust Max. Flow: 246 CFM @ 0.700"
- Intake Average Flow: 245 CFM
- Exhaust Average Flow: 172 CFM
- Intake Seat Material: Ductile Iron
- Intake Port Volume: 265cc
- Exhaust Port Volume: 106cc
- Standard Chamber Volume: 70cc
- Port Type: CNC
Materials
- Cylinder Head Material: A356-T6 Aluminum
- Intake Valve Seat Material: Ductile Iron
- Exhaust Valve Seat Material: Ductile Iron
- Deck Thickness: .750"
- Rocker Stand Type: Mast Billet
- Rocker Arm Type: LS3 1.7 or Aftermarket
- Guide Material: Phosphor Bronze
General
- Rocker Stand Type: Mast Billet
- Rocker Stands Included: Yes
- Rocker Stand Dowels Included: Yes
- Uses Stock Rocker Bolts: No
- Rocker Bolts Included: No
- Rocker Arm Type: LS3 1.7 or Aftermarket
- Head Bolt QTY: 6 Bolt Style
- Valve Cover Rail Height: + ½ inch
- Can use OE Valve Cover: Yes