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Dart Big Chief Cylinder Heads 18275070 Head, Chief, Aluminum, Bare, 82cc Chamber, 440cc Intake Runner, Chevy, 454, Each

SKU: DRT18275070

Cylinder Heads

Dart Big Chief Cylinder Heads 18275070 Head, Chief, Aluminum, Bare, 82cc Chamber, 440cc Intake Runner, Chevy, 454, Each

SKU: DRT18275070

Cylinder Heads
A$10,689.25
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

These Big Chief cylinder heads from Dart put Pro Stock technology within the reach of every racer and engine builder. They have what it takes to win today: spread intake ports, shallow valve angles, efficient combustion chambers, raised exhaust runners, and a valvetrain that's reliable at high rpm. That's some serious performance, right out of the box!

Part Type

Cylinder Heads

Data: v4.2 - Upd: 2026-10-14 09:09:01

Specifications

Product Attributes - Brand
Dart
Product Attributes - Manufacturer's Part Number
18275070
Product Attributes - Part Type
Cylinder Heads
Product Attributes - Product Line
Dart Big Chief Cylinder Heads
Product Attributes - UPC
807051010985
Product Attributes - Combustion Chamber Volume (cc)
82
Product Attributes - Intake Runner Volume (cc)
440cc
Product Attributes - Exhaust Runner Volume (cc)
185cc
Product Attributes - Cylinder Head Style
Bare
Product Attributes - Cylinder Head Material
Cast aluminum
Product Attributes - Intake Port Shape
Oval
Product Attributes - Intake Valve Diameter (in.)
2.470 in.
Product Attributes - CNC-Machined Combustion Chamber
Yes
Product Attributes - CNC-Machined Intake Runner
Yes
Product Attributes - CNC-Machined Exhaust Runner
Yes
Product Attributes - Combustion Chamber Style
Heart
Product Attributes - Intake Port Location
Spread
Product Attributes - Exhaust Port Shape
Round
Product Attributes - Exhaust Port Location
Raised
Product Attributes - Intake Valves Included
No
Product Attributes - Exhaust Valves Included
No
Product Attributes - Exhaust Valve Diameter (in.)
1.800 in.
Product Attributes - Valve Springs Included
No
Product Attributes - Damper Spring Included
No
Product Attributes - Retainers Included
No
Product Attributes - Locks Included
No
Product Attributes - Valve Stem Seals Included
No
Product Attributes - Rocker Arm Studs Included
No
Product Attributes - Rocker Arms Included
No
Product Attributes - Rocker Arm Nuts Included
No
Product Attributes - Guideplates Included
No
Product Attributes - Valve Cover Mounting Style
Perimeter bolt
Product Attributes - Accessory Bolt Holes Drilled
Yes
Product Attributes - Intake Valve Angle
14
Product Attributes - Exhaust Valve Angle
14
Product Attributes - Valve Guides Included
Yes
Product Attributes - Valve Guide Material
Manganese bronze
Product Attributes - Valve Seats Machined
Yes
Product Attributes - Valve Seat Machine Style
4-angle intake/3-angle exhaust
Product Attributes - Valve Seat Material
Copper-beryllium
Product Attributes - Cylinder Head Color
Natural
Product Attributes - Steam Holes Drilled
No
Product Attributes - Oiling Style
Through pushrod
Product Attributes - Machined for O-Ring
No
Product Attributes - Heat Crossover
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Designed for 4.500 in. or larger bore engine block. Requires aftermarket Jesel or T&D shaft rocker arm system, special Big Chief head bolts, valve covers, pistons, and the matching intake manifold.

Reference Information

Brand Name/s Dart
StreetFX SKU drt18275070
SFX Item ID 5089034
Supplier Item Code 5089034
Manufacturer SKU 18275070
Manufacturer UPC 807051010985
Alternative References 82cc, 440cc

Compatibility

Application Data
  • MakeCHEVROLET
    Engine TypeV8
    Engine FamilyChevy big block Gen V
    Engine Size7.4L/454
    Rocker Arm Mounting Style (application)Shaft
    Application NotesDesigned for high-rpm drag racing use only. Recommended for cylinder bores of 4.500 in. or larger.
  • MakeCHEVROLET
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Rocker Arm Mounting Style (application)Shaft
    Application NotesDesigned for high-rpm drag racing use only. Recommended for cylinder bores of 4.500 in. or larger.

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