Mahle Motorsport 930239405 - Piston (set) - BIG BLOCK CHEVY ELITE SPORTSMAN DRAG SERIES 24 Deg/25 Deg

These Mahle Motorsport forged pistons are built from premium 2618 aluminum for maximum strength in high-performance drag racing applications. Designed for the Elite Sportsman Drag Series, this dome piston set fits 24- or 25-degree cylinder heads and features gas porting with coated skirts for improved durability and reduced friction. Each forged aluminum piston kit is sold as a complete set of 8, including wrist pins and retainers for a ready-to-install package.

Engine / Fitment

• Bore: 4.605 in. (116.967 mm)
• Stroke: 4.375 in.
• Rod Length: 6.385 in.
• Actual Engine Displacement: 9.5L / 583 cid
• Compression Ratio: 15.6:1

Piston

• Piston Style: Dome, with single intake valve relief
• Piston Material: Forged aluminum (2618)
• Compression Height (RCH): 1.215 in.
• Crown / Head Volume: 47.1 cc
• Piston Mass: 656 g
• File Fit: Yes
• Gapless: No
• Remanufactured: No

Wrist Pin

• Pin Style: Floating
• Pin Material: Steel
• Pin Diameter: 0.990 in. (25.146 mm)
• Pin Length: 74.42 mm
• Pin Wall Thickness: 0.18 in.
• Pin Mass: 171 g
• Pins Included: Yes
• Retainer / Clip Style: Round Wire
• Clips Included: Yes

Piston Rings

• Rings Included: No
• Ring Thickness: 0.043 in. × 0.043 in. × 3.00 mm
• Top Compression (UCR): 0.043 in.
• 2nd Compression (LCR): 0.043 in.
• Oil Control (OCR): 3.0 mm

Quick Reference: 583 cid · 4.605 bore × 1.215 RCH · 4.375 stroke · 6.385 rod · 0.990 pin · 47.1 cc · 656 g · 15.6 CR · 2618 alloy

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