Since 1952
America's Oldest Speed Shop ®
Speedway Motors Bill Smith

Speedway Moly Piston Rings, 4.00 Bore, Style A

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Specs
Sold in Quantity:
Set
Piston Ring Style:
A
Garage Sale:
No
Piston Ring Design:
Conventional
Top Ring Material:
Moly Coated Cast Iron
Second Ring Material:
Moly Coated Cast Iron
Top Ring Thickness:
5/64"
Second Ring Thickness:
5/64"
Oil Ring Thickness:
3/16"
Oil Ring Tension:
Standard Tension
Piston Ring Diameter:
-

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What's in the Box

Speedway standard moly piston rings work with either gas or alcohol fuels, handle 8000+ rpm, and up to 14:1 compression.

  • Top  5/64"
  • 2nd  5/64"
  • Oil  3/16"

Ring Style Chart (GIF)

Notes

Speedway Piston Ring Hierarchy

  • Good - Speedway Gas Proven Series
  • Better -Speedway Moly
  • Best - Speedway Plasma Moly
  • Ultimate Race - Speedway Pro Series

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Total Seal Conventional Piston Rings, 4.00 Bore, Style A
                        

For years Total Seal has been leader in performance ring technology. These conventional style ring sets featuring a plasma moly ductile iron top ring, cast second and a 3-piece oil ring.

Available in drop-in or file fit.

Ring Style Chart (GIF)

Speedway Gas Proven Series Piston Rings, 4.00 Bore, Styles A, C, D
                        Speedway Gas Proven piston rings are the best value in piston rings! These tough rings will withstand 12.5 maximum compression, 7000 maximum sustained RPM, and up to 450 HP. First and second rings are cast iron yielding 55,000 psi strength with end gap factory set at .012" to .018". Three piece oil ring features chrome rails over a stainless steel expander, which gives uniform wall pressure and efficient oil control.  

Designed for gasoline use. Not recommended for use with alcohol.

Ring Style Chart (GIF)

Speedway Plasma Moly Piston Rings, 4.00 Bore, Style A
                        

Speedway premium Plasma Moly piston rings work with either gas or alcohol fuels, handle 8000+ rpm, and up to 14:1 compression.

Ring Style Chart (GIF)