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  • 042670-1 - World Products - S/R Torquer 23 Degree SBC Iron Head - 170cc Intake Port, 76cc Chamber, 2.020/1.600 Intake/Exhaust Valves, Straight Plugs, Assembly w/1.250? valve springs for hydraulic flat tappet cams

042670-1 - World Products - S/R Torquer 23 Degree SBC Iron Head - 170cc Intake Port, 76cc Chamber, 2.020/1.600 Intake/Exhaust Valves, Straight Plugs, Assembly w/1.250? valve springs for hydraulic flat tappet cams

Part #WPI042670-1
EACH
Available
World’s SR Torquer provides up to 30HP over stock heads. These heads are designed with extra-thick decks and walls for improved reliability as well as equipped with hardened steel exhaust seats that are compatible with today’s unleaded gasolines. They are machined for screw-in rocker arm studs for extra durability. They feature a a larger 2.02 Intake Valve and a 1.60 Exhaust Valve.
WARNING: May Cause Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • Brand:
    • World Products
  • Category:
    • S/R Torquer
  • Chamber Volume:
    • 76cc
  • Make:
    • Chevrolet
  • Material:
    • Iron
  • Notes:
    • Requires pushrod guide plates / For hydraulic flat tappet cams
  • Runner Volume:
    • 170cc
  • Spark Plug:
    • Straight
  • Valve Head Diameter:
    • 2.020/1.600
  • Valve Spring:
    • 1.250
      
  
Assembly components listed below are subject to change without notice.

Cylinder Head: 042670
Intake Valves: 2105
Exhaust Valves: 2003
Valve Springs: 3000
Retainers: 501S
Valve Locks: 205
Valve Seals: OS450-100

May contain valve spring shims.