| 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 4.530"
- Rod Length 6.535"
- Stroke 4.250"
- Compression Distance 1.120"
- Piston Weight in Grams 627
- Dome Volume 48cc
- Included Piston Ring Set 46453-8
- Ring Package 1/16-1/16-3/16
- Intake Valve Notch .300"
- Included Piston Pins 42219 Tool Steel .150" wall, 147 grams-2.930 Long X .990 Diameter
- Recommended Piston Clearance .006" measured 1.100" from bottom of the oil ring
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