Keith Black Coated Pistons KB424C-020 Fits AMC 4.6L Dish 27.5cc Bore 3.895

Fits AMC 4.6L, Bore 3.895, Stroke 3.895, Rod Length 6.123, Dish 27.5cc, Compression Height 1.353, Set of 6 Coated Pistons

$340.98

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⚠ PROP 65 WARNING

⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.

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Description

Keith Black Hypereutectic pistons are great choice for high performance marine, drag race, circle track, street or towing application builds. The low expansion 390 alloy with 16 percent silicon allows for a tighter piston to wall running clearance.

Fully machined head and valve reliefs

Triple Spiral Lock Rings

CNC machined pin bores produce straight and accurately sized bores

Accumulator Groove aids with compression ring seal

Machined in Oil Returns

Diamond Finished Skirts

Mini Grooves to reduce scuffing and overheating

Wrist pins and spiral lock included

5/64 x 5/64 x 3/16 rings not included

Compression Ratio 60cc 8.8:1

Advertised piston weight 390 grams, 116 gram wrist pin

OE Deck Height 9.45"

Note: Standard bore size is 3.875

Note: Offset Pin. Use 4.0L block and rods with 258ci crank. Press or floating rod

Specifications

More Information
Price	$340.98
Vehicle Make	AMC
Bore Size	3.895
Crankshaft Stroke	3.895
Rod Length	6.123
Piston Type	Dish
Compression Height	1.353
Piston Material	Hypereutectic
Piston Ring Size	5/64 5/64 3/16
Wrist Pin Size	0.931
Custom Notices	⚠ PROP 65 WARNING