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Ross Racing Pistons 2618 Forged Pistons
Utilizing some of the most sophisticated design and analysis software, along with ultra modern CNC machining centers available for manufacturing, and a very wide range of forgings, Ross maintains exacting tolerance on pistons for practically all engines. Features include:
Forged from 2618-T61 Aluminum
CNC Diamond Turned Skirts
Radius Domes and Valve Reliefs (oversized to handle most oversizes)
1/16", 1/16", 3/16" Ring Grooves
Forced Pin Oilers
Machined Side Reliefs
Annular Pin Oiler Grooves Which Intersect the Forced Pin Oilers
Second Land Pressure Reservoir
Aircraft Quality Pins
Double Spiro Locks
Part Type: Pistons
Model: 2618 Forged Race Pistons
Application: Chevrolet Big Block V8
Piston Style: 23 Degree Open Chamber Dome Top
Cylinder Bore: 4.310"
Compression Distance: 1.120"
Crankshaft Stroke/Rod Length: 4.250" with 6.535" Connecting Rod (496ci)
Deck Height (Zero Deck): 9.800"
Dome Volume: 51cc
Compression Ratio: 4.250" Stroke w/109cc Heads: 15.5
Compression Ratio: 4.250" Stroke w/118cc Heads: 13.9
Compression Ratio: 4.250" Stroke w/124cc Heads: 13.0
Piston Material: Forged 2618-T61 Aluminum
Accumulator Groves: Yes
Forced Pin Oilers: Yes
Gas Ports: No
Skirt Coating: No
Lock Removal Indents: Yes
Average Piston Weight: 531g
Wrist Pin Style: Press-Fit or Floating
Wrist Pins Included: Air Craft Quality Steel 5115 Series Straight Wall Pins
Wrist Pin Size: .990" x 2.930"
Average Wrist Pin Weight: 146g
Pin Lock Included: Double Spiro Locks
Ring Grove Sizes: 1/16", 1/16", 3/16"
Piston Rings Included: No
Manufacturer: Ross Racing Pistons
Manufacturer's Part Number: 99547
Weight: 15.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Sets of 8
Note: Includes Oil Ring Support Rails. Nitrous up to 250 HP.
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