Auto Tec Pistons 1000649 Forged Dish 4.020 Bore, SB Chevy 381

Auto Tec Pistons, SBC 381, Bore 4.020, Stroke 3.750, Rod Length 6.000, Dish -18.5cc, 406 Grams, Set of 8 Pistons

$799.00

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DROP SHIP

This product is a non-stocking item for CNC-Motorsports and will be shipped directly from the manufacturer / supplier.

⚠ 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

Auto Tec pistons are manufactured on a forged side relief 4032 alloy pistons which is great for street/strip applications. Auto Tec pistons piston offer standard features like broached pin oilers for increased wrist pin lubrication, accumulator grooves, pin fitting wrist pins, wire locks included and 927-2700-51-15C wall wrist pin included. Auto Tec pistons have CNC Machined ring grooves that accept 1.5, 1.5, 3mm rings (Rings Sold Separately)

Compression Ratio:

58cc 10.1:1

64cc 9.5:1

70cc 9.0:1
Note: Oil rail supports included

Specifications

More Information
CNC Part Number	ATT-1000649
Price	$799.00
Manufacturer's Part Number	1000649
Brands	AutoTec
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy SB
Bore Size	4.020
Crankshaft Stroke	3.750
Rod Length	6.000
Piston Type	Dish
Compression Height	1.125
Piston Material	4032 Forged
Piston Ring Size	1.5 1.5 3.0mm
Wrist Pin Size	0.927

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