PISTON RINGS
8 Cylinder Ring Sets (Cont.) 4.600" Bore - File Fit Part No. Description
Size Top 2nd Oil
Oil Ring Tension
JE Pro Seal JEPJ100U8-4600-5 JEPJ100U8-4600-5 JEPJG7708-4610-5 Speed-Pro SEAR19108-5
Ductile Iron, Plasma Moly, D-Wall Ductile Iron, Plasma Moly, D-Wall
4.605" 1/16" 1/16" 3/16" 4.605" 1/16" 1/16" 3/16"
Low
Ultra Low Standard
JEPJG8608-4600-5 Carbon Steel, Nitride, D-Wall, Backcut Top 4.605" .043" 1/16" 3/16"
Carbon Steel, Backcut Top
4.615" .043" .043" 3.0mm
Low
HellFire Top Ring HellFire Top Ring HellFire Top Ring
4.605" .043" 1/16" 3/16" Standard 19-22LB 4.605" 1/16" 1/16" 3/16" Standard 19-22LB 4.605" .043" .043" 3.0mm Low 15-18LB 4.630" 1/16" 1/16" 3/16" Standard 19-22LB 4.605" 1/16" 1/16" 3/16" Standard 23LB+/- 4.605" 1/16" 1/16" 3/16" Standard 23LB+/- 4.605" 1/16" 1/16" 3/16" Standard 23LB+/- 4.605" 1/16" 1/16" 3/16" Standard 23LB+/- 4.605" .043" 1/16" 3/16" Standard 23LB+/- 4.605" .043" 1/16" 3/16" Standard 23LB+/- 4.605" .043" 1/16" 3/16" Standard 23LB+/- 4.605" .043" 1/16" 3/16" Standard 23LB+/- 4.605" .043" .043" 3.0mm Low 9LB+/- 4.605" .043" .043" 3.0mm Low 9LB+/- 4.605" .043" .043" 3.0mm Low 9LB+/- 4.615" .043" .043" 3.0mm Low 9LB+/- 4.630" .043" .043" 3.0mm Low 9LB+/- 4.635" 1/16" 1/16" 3/16" Standard 23LB+/-
SEAR19109-5 SEAR19118-5 SEAR10433-5
Plasma Moly
Total Seal TOTCR9150-5
Classic Race, Ductile Iron Moly Top Maxseal, Ductile Iron Gapless Top Maxseal, AP Steel, Gapless Top TNT, Ductile Iron Moly Gapless Top Classic Race, AP Steel Top Classic Race, AP Steel Top TNT, Ductile Iron Moly Top MaxSeal, AP Steel Gapless Top MaxSeal, AP Steel Gapless Top Classic Race, AP Steel Top TS1, Ductile Iron Moly Top TS1, Ductile Iron Moly Top TS1, Ductile Iron Moly Top TS1, AP Steel Top
TOTM9150-5 TOTMS9150-5 TOTT9150-5* TOTMT4309-5 TOTCS4309-5 TOTT4309-5* TOTTS4309-5* TOTCS4010-5 TOTCT4010-5* TOTMS4010-5 TOTMS4010-15 TOTCS4010-30 TOTT3340-5*
Wiseco WISWG7708-4600-5
Stainless Gas Nitrated Top, Napier 2nd 4.605" .043" .043" 3.0mm
Low
See Page 73 for Total Seal Prefix Legend 4.700" Bore - File Fit Part No.
Description
Size Top 2nd Oil
Oil Ring Tension
Total Seal TOTT1601-5*
TS1, Ductile Iron Moly Top
4.755" 1/16" 1/16" 3/16" Standard 23LB+/-
*Gapless second ring. See Page 73 for Total Seal Prefix Legend
Oil Rings Part No. JE Pistons JEP4185-183
Description
Size
Oil Ring Tension
Oil Rail Support (ea) Oil Rail Support (ea) Oil Rail Support (ea)
4.185" - 4.214" 4.310" - 4.349" 4.600" - 4.635"
— — —
JEP4310-193 JEP4600-203
Mahle
MAH4030-300S
Oil Rings (8pk)
4.030" / 3.0mm
Low
TECH TIP Piston Ring Selection
Piston and ring manufacturer's have learned over the years that there is significant horsepower and fuel economy to be gained by reducing internal engine friction caused by piston rings. It wasn't that long ago that 5/64" (.078") or 1/16" (.062") compression rings, coupled with 3/16" (.187") oil rings, were the only piston rings available for most domestic V-8's. The auto manufacturers abandoned 5/64" compression and the accompanying 3/16" oil rings in favor of narrow, metric-sized rings. GM LS, Ford Modular and late Chrysler Hemi use 1.5mm compression and 3mm oil rings. Narrow rings have less contact area and reduced radial wall tension for a significant reduction in internal friction. Modern, narrow rings provide other benefits as well. They are lighter, which may seem insignificant, but in racing applications with engine speeds in excess of 8,000 RPM, the weight savings are truly beneficial. Piston ring "flutter", where the ring actually vibrates within the ring groove at high engine speeds, is also reduced. Narrow rings also conform better to bore distortion. When selecting piston rings for a race engine, the engine builder tries to achieve a perfect balance between reduced internal friction and ring seal and durability. There may be a slight increase in the amount of oil in the combustion chambers, on piston tops and on spark plugs if a low tension oil ring set is used. Engines with nitrous injection, a supercharger or a turbocharger should never use low tension oil rings because excessive oil in the combustion chambers leads to detonation and, ultimately, broken rings and pistons.
2018 ENGINE BUILDER CATALOG
76
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