World Products 030040-1 - World Products BB-Chevy Merlin III Cast Iron Cylinder Heads

World Products 030040-1 - World Products BB-Chevy Merlin III Cast Iron Cylinder Heads

World Products #955-030040-1

BB-Chevy Merlin III Cast Iron Cylinder Head
  • 269cc Oval Intake Ports
  • 119cc Combustion Chambers
  • 2.300'' Int/1.880'' Exh Valves
  • 1.550'' Valve Springs, .600'' Max Lift for Hydraulic Cam
  • Assmebled, Sold Individually
  • $814.99 Ships
    Share |


    World Products 030040-1 - World Products BB-Chevy Merlin III Cast Iron Cylinder Heads

    World Products 030040-1 - World Products BB-Chevy Merlin III Cast Iron Cylinder Heads Details

    BB-Chevy Merlin III Cast Iron Oval-Port Cylinder Heads

    Valve Spring Specs: 1.550'' Single Valve Springs 120# Seat, .600'' Max Lift

    World Products 030040-1 - World Products BB-Chevy Merlin III Cast Iron Cylinder Heads

    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''
    Rocker Arm Studs: 7/16'' screw-in style with hex shoulder furnished with assembly
    Exhaust Flange: Port location raised .250'' , accessory bolt holes, requires ARP Head Bolts #070-135-3605.

    Included In Base Assembly: Manley RaceMaster (-1 and -2 models) or Severe Duty (-3 and -4) 1-piece forged stainless steel valves with swirl-polished heads, 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, Manley 7° Chrome moly (-1 and -2 models) or 10° chrome moly (-3 models) retainers, keepers and pushrod guide plates. -4 models have 10° titanium retainers.

    Recommended Installation Accessories

    Head Gaskets: Fel-Pro 375-1017-1 or equivalent
    Pushrods: Requires heat treated pushrods
    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)

    Accessories
    - Items You May Need
    Always a great choice. Add one to your cart today!
    JEGS Performance Products Performance Tool Hand Tools & Accessories
    From $1.99

    JEGS Performance Products 80096 - JEGS Cordless 60 LED Work Lite
    Only $34.99

    JEGS Performance Products 80710 - JEGS T-Handle Hex Key Sets
    Only $11.99