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Isky Racing Cams 4005 1932-1953 Flathead Ford V8 Dual Valve Springs
Isky Racing Cams 4005 1932-1953 Flathead Ford V8 Dual Valve Springs

Isky Racing Cams 4005 1932-1953 Flathead Ford V8 Dual Valve Springs

Dual Spring Valve Spring Style, 240 lbs. at 1.187" Open Pressure, 1.25" Outer Spring O.D.

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Isky Racing Cams 4005 1932-1953 Flathead Ford V8 Dual Valve Springs
Isky Racing Cams 4005 1932-1953 Flathead Ford V8 Dual Valve Springs
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Part # 4504005
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Valve Spring Style:
Dual Spring
Open Pressure:
240 lbs. at 1.187"
Seat Pressure:
115 lbs. at 1.687"
Outer Spring O.D.:
Outer Spring I.D.:
Inner Spring O.D.:
Inner Spring I.D.:
Sold in Quantity:
Set of (16)


Our complete line of valve train parts to help your Flathead Ford V8 run on unleaded fuel. These super heavy duty dual valve springs are made from top-quality chrome silicon steel and are designed to work with stock 1932-1953 Ford retainers PLUS our 450-87F retainer adapters.

  • Outside Diameter: .925", 1.240"
  • Inside Diameter:  .690", .925"
  • Installed Height:  1.687
  • Seat Pressure:  115 lbs. @ 1.687
  • Open Pressure:  240 lbs. @ 1.187
  • Max Net Valve Lift:  .500"
  • Spring Rate:  250

Suggested for "full-race" camshafts only.

Flathead Valve Assembly (Link)

Item Details

Must use 450-87F retainer adapters plus the correct stock retainers for the valves being used.
Some parts are not legal for use in California or other states with similar laws/regulations

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