| This Part Number include 8 Pistons, Plasma Moly File Fit Piston Rings, Tool Steel Pins and Spiral Locks. Fits Big Block Chevy engines with: - Bore Size 4.600"
- Rod Length 6.135"
- Stroke 4.000"
- Compression Distance 1.645"
- Piston Weight in Grams 755
- Dome Volume -3cc
- Included Piston Ring Set 46458-8
- Ring Package 1/16-1/16-3/16
- Intake Valve Notch .300"
- Included Piston Pins 42220 Tool Steel .180" wall, 170 grams-2.930 Long X .990 Diameter
- Recommended Piston Clearance .006" measured 1.100" from bottom of the oil ring
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