Emissions Warning
Products sold on this website may not be legal for use on public roads or highways due to Environmental Protection Agency (EPA) restrictions or California Air Resources Board (CARB) emissions regulations. Federal and State regulations may restrict Product installation to pre-emissions regulation (Model Year 1974 or earlier) or to competition/racing vehicles used exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and3) practice associated with events.
Installation of such products, including driving racing vehicles to and from the track, may be considered illegal “tampering ” or as “defeat device”, and may result in federal and state penalties. It is the purchaser’s responsibility to ensure compliance with all applicable emissions laws, including California’s stricter standards.
Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
- Piston Head Type:
- Flat Top
- Bore (in.):
- 4.020
- Recommended Stroke (in.):
- 3.480 in.
- Piston Style:
- Flat Top
- Compression Height (in.):
- 1.560 in.
- Piston Volume (cc.):
- -4.50
- Piston Material:
- Forged aluminum
- Piston Avg Weight (g.):
- 492
- Quantity:
- Sold as a kit.
- Wrist Pin Included:
- Yes
- Wrist Pin Style:
- Press-fit or floating
- Piston Pin Diameter (in.):
- N/A
- Wrist Pin Retainers Included:
- N/A
- Piston Pin Wall Thickness:
- N/A
- Piston Pin Material:
- 5115
- Piston Pin Length:
- 2.250
- Piston Rings Included:
- Yes
- File Fit:
- N/A
- Gas Ported:
- N/A
- Gapless:
- N/A
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Mark IV
- Engine Sizes:
- 7.0L/427-7.4L/454
- Years:
- 1966-1990
- Engine Family:
- Chevy big block Gen V
- Years:
- 1991-1995
- Engine Family:
- Chevy big block Gen VI
- Years:
- 1996-2000
- Engine Sizes:
- 7.4L/454
- Recommended Rod Length:
- N/A
- Top Ring Thickness:
- 0.048 in.
- Second Ring Thickness:
- 0.060 in.
- Oil Ring Thickness:
- 0.119 in.
