Wiseco Sport Compact 86.5mm Bore -17cc Single Piston | Mitsubishi 7-Bolt 4G63 (6548M865AP)
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Mitsubishi 7-Bolt 4G63 Sport Compact Piston (Single) by Wiseco
Own a 7-Bolt 4G63 engine and plan on building a motor? Wiseco is proven to make some of the best pistons on the market!
Featuring valve pocket designs that allow maximum flow around valve, also allowing oversized valves and high lift cams to be utilized. Piston crown shapes designed to promote maximum intake charge efficiency thru scavenging mixture "cross flow" during intake and exhaust valve overlap. More fuel and air equals more horsepower!
Their pistons are designed to optimize squish or quench during compression combustion cycle event, resulting in resistance to detonation and pre-ignition. The end product is longer engine life and increased horsepower potential.
Features
- 2618 Aerospace Alloy for Superior Strength to Weight Ratio
- ArmorGlide® Skirt Coating Increases Power and Reduces Piston Rock
- Strutted Forging & Armor Plating for Improved Strength
Benefits
- Resistance to detonation and pre-ignition.
- Longer engine life and increased horsepower potential.
- Maximum ring seal minimizes blow-by and oil consumption.
Please Note
- This listing is for ONE (1) piston. Utilize the quantity selector if multiple are needed.
Applications
- 1996 - 2006 Mitsubishi Evo 4-9
- 1993 - 2001 DSM 7-Bolt 4G63
Specifications
- Bore: 3.405" (86.50mm)
- Oversize: 0.060" (1.50mm)
- Stroke: 3.465" (88mm)
- Rod: 5.906 (150mm)
- Comp Ht: 1.378 (35mm)
- Head cc's: 47.0
- Volume: -17cc
- Gasket Thickness: 0.042" (1.1mm)
- Deck Clearance: 0
- Block Ht: 9.015 (229mm)
- Compression Ratio: 8.4
What's In The Box?
- 1 - Sport Compact Piston
Warranty
- WISECO warrants this product will be free from defects in material and workmanship for thirty (30) days following date of original purchase.
I purchased a replacement piston for a set of three that I bought. One thing to note is that although its the same part number, the piston was slightly different and the pin very different from the ones that I had. The piston itself had slightly different valve cutouts and ended up being about 6g heavier than the rest. That itself was not an issue, however the pin being much, much heavier was and I had to use another set of pins to rectify the issue. Otherwise the piston and rings are top notch.