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Frankenstein Engine Dynamics

FRANKENSTEIN ENGINE DYNAMICS M311 LS3 Cylinder Head Rect-Port Assembled

MPN: 113004 Catalog #: 001502030 Category: Cylinder Heads Check Vehicle Fitment

Product Details

Cylinder Head - M311 - Assembled - 2.165 / 1.600 in Valve - 273 cc Intake - 71 cc Chamber - Aluminum - LS3 - GM LS-Series - Each

Uses Factory Style Rocker Arms - Req. FED913001 Rocker Stand

Fully CNC Ported, 72cc Chamber Volume

273cc Intake Port, 112cc Exhaust Port and 11Valve Angle

High Quality Components:

Specs:

Cylinder Head - M311 - Assembled - 2.165 / 1.600 in Valves - 273 cc Intake - 71 cc Chamber - Aluminum - LS3 - GM LS-Series - Each

High Quality Components:

  • CHE Bronze Guides
  • Inconel Exhaust Valves
  • Black Nitride Stainless Steel Severe Duty Intake Valves
  • Custom PAC .700Lift Valve Springs
  • Titanium Retainers
  • O-Ringed Exhaust Ports (Hi-Temp Silicone O-Rings Included)
  • 2″ Headers Recommended

Specs:

  • 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

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

GM - LSMatched variant: LS

GM Gen III/IV V8; LS1/LS2/LS3/LS6/LS7/LS9/LSA/LSX

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
Frankenstein Engine Dynamics
Part Number
113004
Catalog Number
001502030
Product Line
Cylinder Heads
Category
Engines & Parts
Type
Cylinder Heads
Length
26.00 in
Width
12.00 in
Height
10.00 in
Weight
37.00 lb
Ship Alone
Yes
Air Restricted
No

Shipping & Availability

Current status Back Order
Estimated timing Contact us for ETA

This item is not showing current inventory. You may contact us for an ETA before ordering.

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