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:
- 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
A designer and manufacturer of top-quality high-performance cylinder heads and intake manifolds for GM's popular LS-series engines as well as other performance powerplants, Frankenstein Engine Dynamics specializes in taking a high-output engine to the next level. They also offer premium camshafts and valvetrain components designed for maximum performance and reliability.
Frankenstein Engine Dynamics LLC is an aftermarket automobile performance racing manufacturer based in Weatherford, Texas. The company develops groundbreaking new products and offers a wide range of performance parts for various car models and engine types, including LS and small block Chevy engines. They are known for their innovative designs and high-quality products. Additionally, the company has a strong presence on social media, showcasing their various builds and products. Overall, Frankenstein Engine Dynamics LLC is a well-respected and reputable company in the automotive industry.
* This is a universal item without fitment details. Please make sure this item is for your application. LMP does not guarantee fitment on universal items.
IMAGES: Images may be a representation and may not reflect the actual product.
California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov
California Residents: TIRE WARNING: LMPerformance will not ship Tires to California.
Legal: Some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. LMPerformance is not responsible for buyer not complying with Federal, State, Province, and/or Local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from LMPerformance, Inc. LMPerformance will not ship ANY non-CARB compliant products to California where California requires products to be CARB certified such as Catalytic Converters and Induction Kits.
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IMAGES: Images may be a representation and may not reflect the actual product. Examples would be SPEC stage 3 clutch kits which all use the same photo.
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