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
Bore: 4.280"
Stroke: 4.000"
Exhaust Depth: 0.120 up
Intake Depth: 0.320
Exhaust Cutter: Slant
Intake Cutter: 2.400
Deck Thickness: 0.200
Oil Rail Spacer: Not Included
Oil Land: 0.078
Second Land: 0.157
Pin Type: 5115 Straight Wall
Pin Buttons: Not Included
Pin Weight: 146 Grams
Pin Wall: 150
Pin Length: 2.930
Rod Length: 6.385
Compression Height: 1.398
Compression Ratio (109.00): 14.50
Compression Ratio (118.00): 13.00
Compression Ratio (124.00): 12.10
Rings Included: No
Ring Set: CR9190
Gram Weight: 595
Dome Volume: 51.00
Dome Height: 0.700
Rings: 1/16, 1/16, 3/16
Attention: Compression Ratio based on 0.050 piston to head clearance (deck & gasket combined).
Quantity Sold as: Set of 8
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