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Instruction Sheets for Part Number SUM-299927406512
Technical Articles for Part Number SUM-299927406512
Summit Racing™ Pro LS Forged Pistons
Pro LS 2618 Forged Piston, 4.065 bore, 1.299 C.H., 12cc Dish, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2 LS3 L92 LS9, Set of 8
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Overview
Brand:
Manufacturer's Part Number:
SUM-299927406512
Part Type:
Product Line:
Summit Racing Part Number:
SUM-299927406512
UPC:
190861233003
Piston Rings Included:
No
Bore (in.):
4.065 in.
Bore (mm):
103.250mm
Stroke:
3.622 in.
Engine Stroke Type:
Stock
Rod Length:
6.125 in.
Piston Style:
Dish, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.299 in.
Piston Head Volume (cc):
+12.00cc
Wrist Pin Style:
Floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.927 in.
Piston Ring Thickness:
1.20mm x 1.20mm x 3.00mm
File Fit:
No
Gapless:
No
Remanufactured:
No
Quantity:
Sold as a set of 8.
Notes:
Designed to fit cathedral and rectangle port. Fits applications with aftermarket rods.
Special Attention:
Verify connecting rod length, piston pin diameter, piston style and cylinder bore diameter before ordering.
Summit Racing™ Pro LS Forged Pistons
The Summit Racing Pro LS forged pistons are affordable and built to withstand the rigors of high boost and nitrous. These pistons are forged from Premium 2618 alloy - the strongest made. They have specially profiled piston skirts, which allow them to run a tight piston-to wall-clearance for maximum ring seal and minimal friction. They have many other high-tech features too!
• Maximum ring-land thickness for power-adders
• Dedicated forgings for the best strength-to-weight ratio
• Multiple compression ratios specifically targeted for 4.8L, 5.3L, 5.7L, and
6.0L engines
• Designed around Premium file fit rings with Gas-Nitride or Plasma steel tops
and ductile Napier second rings
• Available in versions for Gen. 3 Press-fit, Gen. 4 Floating, and Aftermarket
6.125 rods
• Standard and Stroker versions available
• Generous valve reliefs that work with both Cathedral port AND Rectangle
port heads
• Pressure-fed pin-oiling
• Pressure seal groove in 2nd ring land for increased seal.
• High-Speed brush deburring to remove sharp edges that cause detonation
• Ultra-Modern 2.250 pin forgings clear the reluctor rings with stroker cranks
• Durable Chromium Steel wristpins.
• Replacement Singles Available
Applications
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