0
0
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories


's Account
1-800-345-4545
Gift Cards
Track Order
Help
Catalog
World Products 030630-2

World Products Big Block Chevy Merlin III Cast Iron Cylinder Head 345cc Rectangular Intake Ports

955-030630-2

made in usa
Free Shipping Ships

$870.56
World Products Big Block Chevy Merlin III Cast Iron Cylinder Head 345cc Rectangular Intake Ports $870.56
Out of stock
QTY
Big Block Chevy Merlin III Cast Iron Cylinder Head
  • 345cc Rectangular Intake Ports
  • 119cc Combustion Chambers
  • 2.300'' Int/1.880'' Exh Valves
  • 1.550'' Valve Springs, .650'' Max Lift for Hydraulic Roller Cam
  • Assembled, Sold Individually
  • World Products 030630-2 Details

    Big Block Chevy Merlin III Cast Iron Rectangular-Port Cylinder Heads

    Valve Spring Specs: 1.550'' Dual Valve Springs 150# Seat, .650'' Max Lift

    Specifications:

    Quantity
    Sold individually
    Cylinder Head Style
    Assembled
    Guideplates Included
    No
    Rocker Arm Studs Included
    No
    Accessory Bolt Holes Drilled
    Yes
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Cast iron
    CNC-Machined Combustion Chamber
    No
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Damper Spring Included
    No
    Exhaust Valves Included
    Yes
    Heat Crossover
    No
    Intake Valves Included
    Yes
    Locks Included
    Yes
    Machined for O-Ring
    No
    Retainers Included
    Yes
    Rocker Arm Nuts Included
    No
    Rocker Arms Included
    No
    Steam Holes Drilled
    No
    Valve Guides Included
    Yes
    Valve Seats Machined
    Yes
    Valve Springs Included
    Yes
    Valve Stem Seals Included
    Yes
    Combustion Chamber Volume (cc)
    119
    Intake Port Location
    Standard
    Exhaust Port Location
    Raised
    Oiling Style
    Through pushrod
    Intake Valve Diameter (in.)
    2.3
    Exhaust Valve Diameter (in.)
    1.88
    Valve Guide Material
    Cast iron
    Intake Runner Volume (cc)
    345
    Valve Seat Material
    Steel
    Valve Seat Machine Style
    3-angle
    Outside Diameter of Outer Spring (in.)
    1.55
    Maximum Valve Lift (in.)
    0.65
    Number of Springs Per Valve
    Dual
    Retainer Material
    Chromoly steel
    Lock Style
    7 degree
    Combustion Chamber Style
    Open chamber
    Valve Stem Seal Style
    Positive stop
    Manufacturer's Part Number:
    030630-2
    Shipping Weight:
    85.45
    Package Height:
    24
    Package Depth:
    6.7
    Package Width:
    10.2

    Improved Performance Over Chevy's Legendary LS6 Heads!

    Merlin 269cc Oval Port heads are excellent for most street-driven big-blocks up to 468ci. They'll out-perform larger heads in many applications. When larger engines (454 to 540ci) require added flow, choose the Merlin Rectangle Port cylinder heads. With RightCast 320cc and 345cc intake runners, you can expect solid gains in air/fuel mixture combustion charges. These World Products heads will really respond to higher compression ratios, and are ideally suited for hot street/strip cars.

    Technical Specifications
  • Material: High density cast iron
  • Valve Seats: Integral intake,hardened steel exhaust
  • Valve Guides: Integral cast iron
  • Valve Spring Seats: Bare castings machined for 1.550'' springs
  • Valve Size: 2.300'' x 1.880''
  • Exhaust Flange: Port location raised .250'' , accessory bolt holes, requires ARP Head Bolts #070-135-3605.
  • Included In Base Assembly: Erson stainless steel valves, ring and band style (-1 and -2 models) or PC style (-3 and -4 models) valve seals, 1.550'' (-1, -2 and -3 models) or 1.640'' (-4 models) valve springs, Erson 7° (-1 and -2 models) or 10° (-3 models) retainers and keepers.

    Recommended Installation Accessories
  • Head Gaskets: Fel-Pro 375-1017-1 or equivalent
  • Pushrods: Requires heat treated pushrods
  • Rocker Arm Studs: 7/16'' with 7/16''-14 base thread
  • Pushrod Guideplates: BBC Stepped 3/8''
  • Spark Plugs: Accepts 14mm .460'' reach tapered seat 5/8'' hex (AC Delco R42TS/R43TS) or equivalent. Heat range may vary. Consult with engine builder.
  • Intake Gasket: Fel-Pro 375-1212 or equivalent for oval port head. Fel-Pro 375-1211 or equivalent for rectangle port head.
  • Exhaust Gasket: Fel-Pro 375-1410 or equivalent
  • Head Bolts: 8 longer than stock required (955-832015-8)

  • the merlin 345 head,can you get for a flat tapplet hyd cam set and inconel valves?marine use.

    Asked by: calvin b
    Please call our tech line for assistance 1-800-345-4545 ext 2001
    Answered by: Rusty B
    Date published: 2018-07-11
    • y_2019, m_2, d_17, h_18CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.11
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_1
    • loc_en_US, sid_10001_10001_86140, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Items You Need

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.