Mahle Pistons 930274555 Forged Dish BB Oldsmobile 4.155 Bore

Big Block Oldsmobile / 455 Stroker, Bore 4.155, Stroke 4.500, Rod Length 7.100, Dish -22cc, 491 Grams Advertised, Set of 8 Pistons and Rings Included.

Special Price $823.98 Regular Price $895.63

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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

Mahle pistons were designed as a completely finished drop in forged piston assembly. Other than filling the included performance piston ring set, everything is done for you. Mahle has over 80 plus years of piston manufacturing making pistons from OEM to formula 1 racing. Mahle uses only the best technology to make these pistons. Mahle pistons come standard with anti-friction skirt coating for reduced drag. Forged from 4032 low expansion aluminum alloy for high strength and reduced piston to wall clearance. They have Radiused Valve Pockets. Forced Pin Oiler is used for increased wrist pin lubrication. .990 High-Quality Steel Wrist Pin, Precision Pin fitting, Performance 1/16, 1/16, 3/16mm rings, and Race Proven Round Wire Locks are included.

Compression Ratio with 72cc Heads 10.7:1.
Compression Ratio with 80cc Heads 10.0:1.
***Replaces part number BBO260155I22***

Specifications

More Information
CNC Part Number	MAH-930274555
Price	$895.63
Sold As	Set
Manufacturer's Part Number	930274555
Brands	Mahle
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Oldsmobile
Bore Size	4.155
Crankshaft Stroke	4.500
Rod Length	7.100
Piston Type	Dish
Compression Height	1.260
Piston Material	4032 Forged
Piston Ring Size	1.0mm 1.0mm 2.0mm
Wrist Pin Size	0.990
Custom Notices	⚠ PROP 65 WARNING

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