JE Pistons Brodix -12 15 Degree Dome Top 186421R Pistons, Single - 350-12 SBC .350 DOME

SKU: JEP186421R

Pistons

JE Pistons

JE Pistons Brodix -12 15 Degree Dome Top 186421R Pistons, Single - 350-12 SBC .350 DOME

SKU: JEP186421R

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 Brodix -12 15 degree dome top pistons are designed to work with most of the new 15 degree chamber designs. The race-proven hollow dome forging by JE Pistons is the newest design for Sprint Car applications. These pistons have deep valve reliefs to accommodate oversized valves and long-duration, tight lobe separation cams. They accept 1/16, 1/16, 3/16 rings. These pistons utilize hollow dome dedicated left and right hand forgings.

Part Type

Pistons

Data: v4.2 - Upd: 2026-10-14 10:59:21

Specifications

Product Attributes - Brand: JE Pistons
Product Attributes - Manufacturer's Part Number: 186421R
Product Attributes - Part Type: Pistons
Product Attributes - Product Line: JE Pistons Brodix -12 15 Degree Dome Top Pistons
Product Attributes - UPC: 193564187918
Product Attributes - Piston Rings Included: No
Product Attributes - Bore (in.): 4.040 in.
Product Attributes - Bore (mm): 102.616mm
Product Attributes - Stroke: 3.500 in.
Product Attributes - Engine Stroke Type: Stock
Product Attributes - Actual Engine Displacement: 5.9L/358
Product Attributes - Rod Length: 6.000 in.
Product Attributes - Piston Style: Dome, with two valve reliefs
Product Attributes - Piston Material: Forged aluminum
Product Attributes - Compression Height (in.): 1.250 in.
Product Attributes - Dome Height (in.): 0.350 in.
Product Attributes - Piston Head Volume (cc): +7.00cc
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: 0.064 in. x 0.064 in. x 0.188 in.
Product Attributes - File Fit: No
Product Attributes - Gapless: No
Product Attributes - Top Ring Thickness: 0.064 in.
Product Attributes - Second Ring Thickness: 0.064 in.
Product Attributes - Oil Ring Thickness: 0.188 in.
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: Designed to fit right exhaust valve orientation. Designed to work with most new 15 degree chamber design cylinder heads.

Reference Information

Brand Name/s	JE Pistons
StreetFX SKU	jep186421R
SFX Item ID	4808945
Supplier Item Code	4808945
Manufacturer SKU	186421R
Manufacturer UPC	193564187918

Compatibility

Application Data

Make	CHEVROLET
Beginning Year	1970
Ending Year	1980
Engine Type	V8
Engine Family	Chevy small block Gen I
Engine Size	6.6L/400
Application Notes	Designed to fit right exhaust valve orientation. Designed to work with most new 15 degree chamber design cylinder heads.