61004 Diamond Pistons Pontiac 455 Forged Flat Top 4.165 Bore

Fits Pontiac 455, Bore 4.165, Stroke 4.250, Rod Length 6.800, Flat Top -4.6cc, Set of 8 Pistons, Made to order

$1,279.15

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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.

Description

Diamond Pistons are some of the best aftermarket pistons on the market. Trust your new engine with a set of Diamond Pistons

Designed for use with OEM & Aftermarket cylinder heads

Ratios figured for .040 head gasket @ 10.225 deck

Premium 1/16 1/16 3/16 ring package available

Premium 8620 .155" wall wrist pins included

Top Ring down = .200"

Accommodates a maximum intake valve size of 2.150"

Valve relief depth= .209" intake and symmetrical exhaust

Compression Ratio with 72cc Heads 11.4:1
Compression Ratio with 77cc Heads 10.9:1
Compression Ratio with 87cc Heads 9.9:1
Piston weight 475 Grams
Made to order

Specifications

More Information
CNC Part Number	DRP-61004
Price	$1,279.15
Manufacturer's Part Number	61004
Brands	Diamond
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Pontiac
Bore Size	4.165
Crankshaft Stroke	4.250
Rod Length	6.800
Piston Type	Flat Top
Compression Height	1.280
Piston Material	4032 Forged
Piston Ring Size	1/16 1/16 3/16
Wrist Pin Size	0.990
Custom Notices	⚠ PROP 65 WARNING

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