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Instruction Sheets for Part Number SUM-17400C-20
Summit Racing™ Coated Forged Pistons
Pistons, Forged Aluminum, Flat, 3.800 in. Bore, 1.331 in. Compression Height, 0.945 in. Pin, Chevy, LS, Set of 8
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Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SUM-17400C-20
Part Type:
Product Line:
Summit Racing Part Number:
SUM-17400C-20
UPC:
190861232099
Piston Rings Included:
No
Bore (in.):
3.800 in.
Bore (mm):
96.520mm
Stroke:
3.622 in.
Engine Stroke Type:
Stock
Rod Length:
6.098 in.
Piston Style:
Flat top, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.331 in.
Piston Head Volume (cc):
+2.90cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.945 in.
Piston Ring Thickness:
1.50mm x 1.50mm x 3.00mm
File Fit:
No
Gapless:
No
Remanufactured:
No
Quantity:
Sold as a set of 8.
Notes:
These pistons with .945 in. pins are designed for Gen. 3 Press-fit rod applications. Gen. 4 full-floating connecting rods with .9433 in. pins variants are available in the Summit Pro LS forged piston line.
Summit Racing™ Coated Forged Pistons
Make your engine rebuild more affordable with Summit Racing™ coated forged pistons! They offer the strength of a forging at a cast piston price. They're forged from 4032 aluminum, an alloy containing silicon—which controls the thermal expansion for tighter piston-to-wall clearances. This unique alloy and design reduces piston wobble, limits noise, improves piston ring seating, and increases the overall life of skirts and pin bores. The special coating on these forged pistons adds extra protection from both skirt scuffing during cold starts or on an overheated engine. These sets are available in dozens of models/options to fit applications from 1967 and up. Summit Racing™ coated forged pistons will meet your engine demands!
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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