JE Pistons | Nitreous Series Gas Ported
These big block pistons are an excellent choice for drag race applications. Compression Height figured using 9.800 block height with zero deck clearance.
- 2618 Low Silicon Material
- Smooth Radius Dome Designs
- Includes Wrist Pin, Double Spiro Locks and Oil Rail Supports (when needed)
Part Type: Pistons
Model: Nitreous Series Gas Ported | 2618 Forged Race Pistons
Application: Chevrolet Big Block V8
Piston Style: Dome Top Open Chamber Dome with 2 Valve Reliefs
Cylinder Bore: 4.610"
Compression Distance: 1.290"
Crankshaft Stroke/Rod Length: 4.250" with 6.385" Connecting Rod (568ci) 9.800" Deck Hgt.
Crankshaft Stroke/Rod Length: 4.375" with 6.700" Connecting Rod (584ci) 10.200" Deck Hgt.
Deck Height (Zero Deck): 9.800" / 10.200"
Dome Volume: 44cc
Compression Ratio: 4.250" Stroke w/118cc Heads: 14.7
Compression Ratio: 4.375" Stroke w/118cc Heads: 15.0
Piston Material: Forged 2618 Aluminum
Accumulator Groves: Yes
Forced Pin Oilers: Yes
Gas Ports: No
Skirt Coating: No
Lock Removal Indents: Yes
Average Piston Weight: 715g
Wrist Pin Style: Press-Fit or Floating
Wrist Pins Included: Yes
Wrist Pin Size: .990" x 2.930"
Average Wrist Pin Weight: 150g
Pin Lock Included: Double Spiro Locks
Ring Grove Sizes: 0.043", 1/16", 3/16"
Piston Rings Included: No
Manufacturer: JE Race Pistons
Manufacturer's Part Number: 258202
Weight: 15.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Sets of 8
Note: Oil Rail Support is Included.