ROSS Racing Pistons (2G DSM 4G63) - Modern Automotive Performance

ROSS Racing Pistons (2G DSM 4G63)

Ross Racing Pistons
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  • Compression Ratio: Based on factory head and gasket
  • Forced Induction: Yes
  • Nitrous: Yes
  • Tech-Tip: Gen 1 4G63 pin diameter .866
  • What's Included: Rings, Locks, Pins (H13 Taper Wall Pins) 
BORE STROKE ROD LGTH HEAD CC C.H. COMP RATIO DOME VOLUME RING GROOVES GRAM WT. PART NO.
3.366 ( 85.5 mm ) 3.465 5.906 47.0 1.375 8.3 -12.1 1.5, 1.5 3 mm 343 99815
3.376 ( 85.75 mm ) 3.465 5.906 47.0 1.375 8.3 -12.5 1.5, 1.5 3 mm 345 99816
3.366 ( 85.5 mm ) 3.937 5.906 47.0 1.130 9.0 -16.2 1.5, 1.5 3 mm 312 99871*
3.376 ( 85.75 mm ) 3.937 5.906 47.0 1.130 9.0 -16.7 1.5, 1.5 3 mm 315 99872*
 

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Customer Reviews

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C
Chrsitian
Ross racing pistons

After being in the market for a set of pistons, decided to give Ross a try and have to say the quality on the pistons is amazing.

The only reason for me to give them 4-stars is due to the fact that they supplied the wrong support rails and after sending the replacement rails they were also the wrong one, so I ended uo buying Wiseco support rails.

Other then that, great quality, customer service tries to help as much as they can and if it wasn't for the rail issue, I would've definitely give them a 5-star rating.