Description

FRANKENSTEIN Monster M311 topplock GM LS3/LSX.

6-bultade topplock från AmerikanskaFRANKENSTEIN är byggda för stora effektuttag. Ska du ladda mycket Boost krävs 6-bultade topplock till block av LSX-typ. Topparna är fyllda med enbart kvalitativa delar från tex PAC- Racing, O-ringade avgasportar mm.

Dessa toppar kräver minst 4″ i borr och passar insug med rektangulära portar. Passar både till original 4-bultade block samt till LSX 6-bultade block.

• 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,
• Valve Seals: Viton High Heat Seal
• Exhaust Gaskets: High Temp Silicone O-Rings
• Head Gaskets: Requires head gaskets with a minimum 4.030″ bore size. LS9 GasketsGMC12622033 (4.100″ bore) recommended for most factory-block applications.
• Spark Plugs: Compatible with .750” Reach Gasket Seat or .708″ Reach Tapered Seat Plugs
• Pushrods: Depending on camshaft, lifter and rocker arm selection, typical required pushrod length will be in the 8.100-8.250″ range. 3/8″ Diameter recommended
• Rockers: Accepts Standard LS3 Style Rockers (Billet M311 Stands Required)
• Rocker Stands: Requires Optional Frankenstein M311 Billet Stands #913001 for stock style rockers, or can be used with M311-specific shaft rocker kits (not included)
• Material: Aluminum,
• Color:Natural,
• Finish:Natural,
• Fabrikat:Frankenstein Monster Series M311 GM LS3.

Key Features:

• Fully CNC Ported: Featuring a 273cc intake port and 93cc exhaust port, with a 68cc combustion chamber volume and 11 degree valve angle, these heads maximize airflow and provide increased power potential for both street and race builds.
• Proven Performance: The 273cc intake port has been flow bench tested to an impressive 394.0 cfm on the intake side and 274.0 cfm on the exhaust side, providing the airflow needed for high-performance builds.
• Perfect for High-Rev and Stroker Builds: Ideal for high-RPM stock bottom end builds or larger displacement stroker engines, these heads are engineered to meet the airflow demands of aggressive applications.
• Heavy Duty Construction: Extra-thick deck surfaces are included to alleviate head gasket sealing issues, especially in power-adder applications such as forced induction or nitrous systems.

FED LS3 Monster Series rectangular port (1.400″ x 2.670″) cylinder heads are engineered for LS-based 4.00″ min. bore size engines. Castings features; A357 T6 aluminum alloy, heat-treated, low-silica alloy, 0.750″ deck thickness, 6-bolt head, OEM factory-style water crossover ports, 7/16″ stud size for main 10 bolts, 8mm stud size for outer tabs and deck studs, bronze guides, O-ring exhaust ports, and ductile iron valve seats. Machining process features include include features; 5-AXIS CNC-ported intake, exhaust (1.860″ x 1.700″ D-port), and combustion chambers, precision 5-angle CNC-valve job, PCD deck milled, hand blended and deburred, final wash and assembly, quality control in every stage of manufacturing. Assembled heads Machining process features include: custom PAC 0.700″ lift springs, FED black nitride severe-duty stainless steel intake and exhaust valves, FED titanium retainers, FED steel valve spring locators 0.565″ guide, 7° valve locks, US Seal Viton high-heat valve seals, and US Seal hardened spring shims.

Topplocken passar till bl.a:LS3 LSA L99 L76 L77 L92 LY6 L96 L94 L9H – Also Fits LS2 LQ4 LQ9 when used with a Rectangle Port/LS3 intake manifold and LS3 rocker arms.

Topplocken kommer kompletta med ventiler och fjädrar. Stands köps separat,FED913001.

Säljs parvis (2 topplock).