SRP Pistons 139627 Forged 350/ 400 Dish 4.020 Bore

SRP Pistons, SBC 381, Bore 4.020, Stroke 3.750, Rod Length 5.700, Dish -16cc, 459 Grams, Set of 8

Special Price $674.09 Regular Price $748.99

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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

SRP Professional pistons are the most advanced lightweight FSR forging that offers superior strength. SRP pistons are up to 20% lighter than traditional equivalent pistons. High-silicon 4032 aluminum alloy for reduced piston-to-wall clearance and quiet operation. Accumulator grooves for improved ring seal. Designed for normally aspirated or moderate forced induction nitrous engine applications. SRP professional pistons come standard with high-performance skirt coating and low drag performance piston rings.

Ring land and crown thickness specifically engineered for mild turbo, supercharged, and nitrous applications.

CNC machined domes with radiused valve reliefs provide optimum flame travel.

Optional bearing steel pins available

Forced pin oiler for increased wrist pin lubrication.

Pin fitting and double spiro locks included.

927-2750-150 wall wrist pin (130 grams) included

CNC Machined ring grooves accept 1/16, 1/16, 3/16mm rings (Rings Sold Separately)

Compression Ratio:

58cc 10.4:1

64cc 9.8:1

70cc 9.2:1

Specifications

More Information
CNC Part Number	SRP-139627
Price	$748.99
Manufacturer's Part Number	139627
Brands	SRP
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Chevy SB
Bore Size	4.020
Crankshaft Stroke	3.750
Rod Length	5.700
Piston Type	Dish
Compression Height	1.425
Piston Material	4032 Forged
Piston Ring Size	1/16 1/16 3/16
Wrist Pin Size	0.927
Custom Notices	⚠ PROP 65 WARNING

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