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Part # 91015310

Flathead Cylinder Head Stud Kit

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  • Studs have superior "pull down torque" and are a great upgrade from standard bolts
  • Flathead decks are thin and their threads are easily stripped making head studs a necessity
  • The combination of fine upper threads and hardened washers also prevents galling and ensures accurate torque readings

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Product Summary

  • Studs have superior "pull down torque" and are a great upgrade from standard bolts
  • Flathead decks are thin and their threads are easily stripped making head studs a necessity
  • The combination of fine upper threads and hardened washers also prevents galling and ensures accurate torque readings
  • This kit works well with both aluminum and iron heads
  • Never worry about blown head gaskets again!

Key Specs

MFG. Part #
BrandSpeedway Motors
Fastener StyleStud
Material TypeSteel
Thread PitchBlock: 7/16"-14 UNC, Head: 7/16"-20 UNF

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Details

Performance engine builders know that head studs are superior to bolts, and this is especially the case on Flathead Ford and Mercury V8s. Flathead decks are thin and their threads are easily stripped. By installing studs, you avoid damaging the threads in the block through repeated use. The combination of the studs fine outer threads and hardened washers also prevents galling and ensures accurate torque readings, particularly on aluminum heads.

  • Studs utilize superior "pull down torque"
  • Properly fastens and torques both aluminum and iron heads
  • 1949-1953 kit shown above (to reflect 2 different stud lengths provided).
  • 1939-1948 kit not shown.

Item Details

1939-1948 or 1949-1953

Application

  • Part number 91015310-39 for 1939-1948 Flathead V8s
  • Part Number 91015310-49 for 1949-1953 Flathead V8s

Charts

Specifications

KEY SPECS
MFG. Part #
BrandSpeedway Motors
Fastener StyleStud
Material TypeSteel
Thread PitchBlock: 7/16"-14 UNC, Head: 7/16"-20 UNF
GENERAL
Cut to FitYes
FinishZinc
Notes
Sold in QuantitySet