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SRP Professional Series 2618 Alloy Forged Pistons 329434S
Part Number: JEP-329434S
SRP Professional Series 2618 Alloy Forged Pistons
Piston, Forged, Flat Top, 2-Valve Reliefs, 4.060 in. Bore, 3.480 in. Stroke, 5.700 in. Rod, 1.260 in. Compression, Chevy, Each
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Estimated Ship Date: Mar 12, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
329434S
Part Type:
Product Line:
Summit Racing Part Number:
JEP-329434S
UPC:
193564253774
Piston Rings Included:
Yes
Bore (in.):
4.060 in.
Bore (mm):
103.124mm
Stroke:
3.480 in.
Engine Stroke Type:
Stock
Actual Engine Displacement:
5.9L/360
Rod Length:
5.700 in.
Piston Style:
Flat top, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.560 in.
Piston Head Volume (cc):
+5.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.927 in.
Piston Ring Thickness:
0.048 in. x 0.060 in. x 0.118 in.
File Fit:
No
Gapless:
No
Top Ring Thickness:
0.048 in.
Second Ring Thickness:
0.060 in.
Oil Ring Thickness:
0.118 in.
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Made from 2618 alloy forged aluminum.
Special Attention:
Designed to work with Chevy 23 degree cylinder heads with 20/30 valve spacing..
SRP Professional Series 2618 Alloy Forged Pistons
JE Pistons SRP Pro 2618 line expands on the premium features of the SRP Pro Series with the addition of extremely strong, forged aluminum material. All piston kits include gas-nitrided, carbon-steel pistons rings, pins, and locks. SRP Pro 2618 pistons maximize piston strength and value, whether you're building a rowdy small block or a flame-spitting big block. Offered in a wide variety of engine applications in popular bore and stroke dimensions, select the ideal fit for your build.
Features:
* Forged using 2618 aluminum, yielding high-tensile strength needed for high-demand performance applications
* Advanced Forged Side Relief (FSR) forging design increase strength
* Ring groove design placement proven to maintain positive seal in high-horsepower, boosted/nitrous applications, along with stout top land thickness for improved strength
* High performance, low-friction skirt coating reduces wear and reduces operating noise while optimizing performance
* High-quality narrow wrist pins that reduce weight, locks, and JE Pro Seal premium piston rings are included
* Ring set:
-- 1.2mm premium steel top ring
-- 1.5mm Napier (hooked face) second ring
-- 3.0mm standard tension oil ring
* Accumulator grooves help reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
Applications
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Some parts are not legal for use in California or other states with similar laws / regulations
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