Manley Pistons for 4G63 7-Bolt DSM & Evo 4-9
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Product Overview
Designed for 4G63 7-Bolt engines with precise compression ratios tailored to DSM and EVO head types
Key Features
- Wrist pins feature .866" diameter with options from .150" to .300" in chrome moly or alloy
- Accommodates +1mm valve sizes for compatibility with modified valve trains
- Pressure balance groove enhances engine balance and reduces internal stress
- Recommended piston clearance of .0035" measured from 1.100" oil ring bottom
Specifications
| Stroke | 88 mm (2.0L) |
|---|---|
| Compression Ratio | 8.5:1 DSM / 9.0:1 EVO (standard), 9.0:1 DSM / 9.5:1 EVO (high), 10.0:1 (top variant) |
| Dome Volume | -12 cc (standard), -8 cc (high-compression) |
| Piston Type | Dish |
| Wrist Pin Diameter | .866" (22 mm) |
| Recommended Clearance | .0035" measured from 1.100" oil ring bottom |
| Valve Size Compatibility | +1mm valve size tolerance |
Applications
- 4G63 7-Bolt DSM
- 4G63 Evolution IV-VIII-IX
- Eclipse GST/GSX 1992.5-1999
- Talon TSi 1992.5-1998
- Laser RS 1992.5-1994
- Galant VR4 1992.5-1992
What's Included
- Piston set with specified part number
- Premium steel top rings with Napier seconds and round wire locks
- Wrist pin with specified diameter (e.g., .866")