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ProMaxx Performance 340 Series Aluminum Cylinder Heads Big Block Chevy

723-9342


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340 Series Aluminum Cylinder Heads Big Block Chevy
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$3,179.00
Oversize Fee:$19.99
340 Series Aluminum Cylinder Heads
  • Big Block Chevy
  • 100% CNC-Ported
  • 340cc Intake Ports
  • 121cc Combustion Chamber
  • 2.30'' Intake / 1.88'' Exhaust Valves
  • 7/16'' Rocker Arm Studs
  • .700'' Max Lift
  • Steel Retainers
  • Assembled, 2/pkg
  • Estimated to ship direct from manufacturer on 04/29/24 , pending manufacturer availability. Learn More
    QTY

    what spring size and seat spring presure.

    Asked by: too fast Freddie
    Spring specifications Hydraulic Roller .600 max lift Closed ………………….. 135 lbs. @ 2.000” Open ……………………. 365 lbs. @ 1.400”
    Answered by: Rusty B
    Date published: 2018-05-30
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