Enginetech Single Piston - Part Number P1520(1)

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Part Interchange:

Interchanges with Silvolite 1446 and FEL-PRO 403P.

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Compatibility Chart

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Category	Make	Model	User Engine	Year Range	Notes
Car	GM		4.1L / 250 OHV L6 12V Chev. 3.875" Bore	66-79	"D" shaped dish top. 1.640" CH. Use R38856 or C38856 rings.
TRUCK, VAN, SUV	GM, CHEVROLET		4.1L / 250 OHV L6 12V Chev. 3.875" Bore	68-84	"D" shaped dish top. 1.640" CH. Ex. LPG engines. Use R38856 or C38856 rings.

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Piston Attributes

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Attribute	Value
Top Ring Size	5/64
Second Ring Size	5/64
Oil Ring Size	3/16
Pin Diameter	0.9273
Bore Diameter (At Standard)	3.875in / 98.43mm
Alloy	Standard
Clearance	0.0017
Compression Height	1.640
Crown	36
Measuring Height	1.000
Nominal Compression Ratio	8.5:1
Pin Type	P
Recess Depth	0.060

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Features:

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• Compensates for oversized bores and head/deck milling from 0.010" to 0.020".
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• Includes piston pins and piston pin clips where required.
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• Manufactured with state-of-the-art materials to match OE requirements.
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• Offers cast aluminum, hypereutectic, and forged applications.
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• Skirt coatings, anodized heads, and NI-resist inserts used as required.
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Warning:

This product may expose you to chemicals including Lead and Nickel, known to cause cancer and birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov.