JE Pistons FSR Superfly GP 300253R Pistons, Single - 350 SBC SPRFLY WT FT

SKU: JEP300253R

Pistons

JE Pistons

JE Pistons FSR Superfly GP 300253R Pistons, Single - 350 SBC SPRFLY WT FT

SKU: JEP300253R

Pistons

BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.

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Description

JE Pistons FSR Superfly GP pistons are the ultimate lightweight pistons for late model stock 2-barrel and similar applications up to 400 hp. FSR forging provides reduced skirt contact that lowers friction for optimum horsepower gains. These pistons feature a .190 in. deep intake valve pocket for maximum compression. The ring grooves are machined for 1.2, 1.2, 3.0mm backcut rings with lateral gas ports for superior ring seal.

Part Type

Pistons

Data: v4.2 - Upd: 2026-10-14 10:59:43

Specifications

Product Attributes - Brand: JE Pistons
Product Attributes - Manufacturer's Part Number: 300253R
Product Attributes - Part Type: Pistons
Product Attributes - Product Line: JE Pistons FSR Superfly GP Pistons
Product Attributes - UPC: 193564187185
Product Attributes - Piston Rings Included: No
Product Attributes - Bore (in.): 4.035 in.
Product Attributes - Bore (mm): 102.489mm
Product Attributes - Stroke: 3.500 in.
Product Attributes - Engine Stroke Type: Stock
Product Attributes - Actual Engine Displacement: 5.9L/358
Product Attributes - Rod Length: 5.700 in.
Product Attributes - Piston Style: Flat top, with two valve reliefs
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Compression Height (in.): 1.550 in.
Product Attributes - Piston Head Volume (cc): +1.80cc
Product Attributes - Wrist Pin Style: Press-fit or floating
Product Attributes - Wrist Pin Retainers Included: Yes
Product Attributes - Wrist Pin Included: Yes
Product Attributes - Pin Diameter (in.): 0.927 in.
Product Attributes - Piston Ring Thickness: 0.043 in. x 0.043 in. x 3.00mm
Product Attributes - File Fit: No
Product Attributes - Gapless: No
Product Attributes - Top Ring Thickness: 0.043 in.
Product Attributes - Second Ring Thickness: 0.043 in.
Product Attributes - Oil Ring Thickness: 3.0mm
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Designed to fit right exhaust valve orientation. Also works with 3.480 in. stroke engines.

Reference Information

Brand Name/s	JE Pistons
StreetFX SKU	jep300253R
SFX Item ID	4808359
Supplier Item Code	4808359
Manufacturer SKU	300253R
Manufacturer UPC	193564187185

Compatibility

Application Data

Make	CHEVROLET
Beginning Year	1967
Ending Year	2002
Engine Type	V8
Engine Family	Chevy small block Gen I
Engine Size	5.7L/350
Application Notes	Designed to fit right exhaust valve orientation. Also works with 3.480 in. stroke engines.