M311 LS3 Cylinder Head Rect Port - Assembled
- Cylinder Head
- M311
- Assembled
- 2.165 / 1.600 in Valve
- 273 cc Intake
- 71 cc Chamber
- Aluminum
- LS3, GM LS-Series
- Sold as Each
Note: Uses factory style rocker arms - Req. part number 913001 Rocker Stand
Specifications
|
Brand
|
Frankenstein Engine Dynamics
|
|
Part Number
|
113004
|
|
Product Line
|
M311
|
|
Assembled/Bare
|
Assembled
|
|
Chamber Volume
|
71 cc
|
|
Intake Runner Volume
|
273 cc
|
|
Exhaust Runner Volume
|
93 cc
|
|
Intake Port Shape
|
Square
|
|
Intake Port Location
|
Stock
|
|
Intake Port Height
|
2.670 in
|
|
Intake Port Width
|
1.400 in
|
|
Exhaust Port Shape
|
Round
|
|
Spread Exhaust Port
|
Yes
|
|
Exhaust Port Location
|
Stock
|
|
Exhaust Port Height
|
1.700 in
|
|
Exhaust Port Width
|
1.860 in
|
|
Exhaust Port Bolt Pattern
|
Stock
|
|
Intake Valve Size
|
2.165 in
|
|
Intake Valve Included
|
Yes
|
|
Intake Valve Material
|
Stainless
|
|
Intake Valve Length
|
5.405 in
|
|
Exhaust Valve Size
|
1.600 in
|
|
Exhaust Valve Included
|
No
|
|
Exhaust Valve Material
|
Inconel
|
|
Exhaust Valve Length
|
5.42
|
|
Valve Spring Included
|
Yes
|
|
Valve Spring Retainers Included
|
Yes
|
|
Valve Spring Retainer Material
|
Steel
|
|
Valve Locks Included
|
Yes
|
|
Valve Lock Material
|
Steel
|
|
Valve Seal Included
|
Yes
|
|
Valve Seal Material
|
Viton
|
|
Rocker Studs Included
|
No
|
|
Rocker Stud Size
|
8 mm x 1.25
|
|
Pushrod Guide Plate Included
|
No
|
|
Valve Guide Included
|
Yes
|
|
Valve Guide Material
|
Bronze
|
|
Center Mount Valve Cover
|
Yes
|
|
Valve Seat Included
|
Yes
|
|
Intake Valve Seat Material
|
Ductile Iron
|
|
Exhaust Valve Seat Material
|
Ductile Iron
|
|
Valve Seat Finish
|
Machined
|
|
Combustion Chamber Finish
|
CNC Machined
|
|
Intake Runner Finish
|
CNC Machined
|
|
Exhaust Runner Finish
|
CNC Machined
|
|
Intake Valve Angle
|
11 Degree
|
|
Exhaust Valve Angle
|
11 Degree
|
|
Accessory Bolt Holes
|
Drilled and Tapped
|
|
Material
|
Aluminum
|
|
Color
|
Natural
|
|
Finish
|
Natural
|
|
Quantity
|
Each
|
