STM Tuned -Spec Manley Custom 11.5:1 Pistons for 4G63 Evo 4-9
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The STM-Spec Manley Evo IV-IX Custom 11.5:1 Pistons for 2.0L 4G63 are now available! These are the same gas ported pistons we have been testing in our STM Race Engines and easily trapping 165+ MPH in the 1/4! The STM-Spec Pistons are only available in 85.5mm bore and come with coated skirts, rings and wrist pins.
If you have questions about your build, feel free to give us a call and we will get you on the right path to your goals. STM-Spec Pistons are capable of handling all the power you can throw at them.
Features:
- Gas ported
- Moly coated skirts
- 2618 high strength material
- Lightweight design with offset wrist pin for quiet start-ups
- 9310 Alloy 2.250 x .300" STM-Spec wrist pin
- Pressure balance groove
- Premium Steel top rings with Napier seconds and round wire locks include
Includes:
- (4) Pistons
- (4) Piston Ring Sets
- (4) Wrist Pins
- (4) Spiral LocksSee more Manley Pistons for the 4G63 Evo 7-
Vehicle Fitment:
- 1996-2006 Evolution 4/5/6/7/8/9
- (2.0L 4G63 85.5mm Bore)
Part Number: | 5812STM1C‑4 |
Pin: | STM-Spec Pin |
.300" Wall (9310 Alloy) | |
.866" / 22mm Pin | |
Bore Size: | 85.5 +.5mm |
Rod Length: | 150 mm |
Stroke: | 88mm Standard Stroke (2.0L) |
Cylinder Head cc: | 43 cc |
Compression Ratio: | 8.5:1 for DSM |
9.0:1 for EVO | |
Weight: | 376 Grams |
Ring Set: | 46885‑4 |