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Dart BBC 355cc CNC Pro-1 Head 121cc R/P 2.30/1.88 Bare 19574030

Dart BBC 355cc CNC Pro-1 Head 121cc R/P 2.30/1.88 Bare 19574030

DRT19574030 (1 in stock)

Dart

Regular price $2,550.99 Sale

CNC-Ported Pro 1 Cylinder Heads for Big Block Chevy

Championship-winning technology in an affordable package. Aluminum heads feature 2° rolled valve angles, .300" raised exhaust ports and fast-burn combustion chambers. Available in five different intake runner volumes for a wide variety of applications, heads are also offered in fully CNC-ported versions to maximize performance. Bare castings have multi-angle valve job and bronze valve guides. Assembled versions have extra long valves, springs, retainers, locks, and seals. Sold individually, bare or fully assembled.

  • Cylinder Head 
  • Pro 1 CNC
  • Bare
  • 2.300 / 1.880 in Valves - 355 cc Intake - 121 cc Chamber
  • Aluminum
  • Big Block Chevy
  • Sold as Each
  • MPN: 19574030

Specifications

Brand
Dart
Part Number
19574030
Product Line
Pro 1 CNC
Assembled/Bare
Bare
Chamber Volume
121 cc
Plug Angle
Straight
Intake Runner Volume
355 cc
Exhaust Runner Volume
138 cc
Intake Port Shape
Rectangle
Intake Port Location
Stock
Intake Port Height
2.500 in
Intake Port Width
1.760 in
Exhaust Port Shape
Round
Exhaust Port Location
Raised
Exhaust Port Raised Distance
0.300 in
Exhaust Port Height
1.740 in
Exhaust Port Width
2.000 in
Exhaust Port Bolt Pattern
Stock
Intake Valve Size
2.300 in
Intake Valve Included
No
Exhaust Valve Size
1.880 in
Exhaust Valve Included
No
Valve Spring Included
No
Valve Seal Included
No
Rocker Studs Included
No
Pushrod Guide Plate Included
No
Valve Guide Included
Yes
Valve Guide Material
Bronze
Perimeter Mount Valve Cover
Yes
Valve Seat Included
Yes
Intake Valve Seat Material
Powdered Metal
Exhaust Valve Seat Material
Powdered Metal
Valve Seat Finish
Machined
Combustion Chamber Finish
As Cast
Intake Runner Finish
As Cast
Exhaust Runner Finish
As Cast
Intake Valve Angle
24 Degree
Exhaust Valve Angle
15 Degree
Accessory Bolt Holes
Drilled and Tapped
Material
Aluminum
Color
Natural
Finish
Natural
Quantity
Each