Speed Pro Sbc 383 Chev Flat Top Piston 4.020 Bore 5.7 Rods -6Cc (H860CP 020) H860CP20

Speed Pro Sbc 383 Chev Flat Top Piston 4.020 Bore 5.7 Rods -6Cc

The Speed Pro SBC 383 Chev Flat Top Piston is designed for performance enthusiasts looking to enhance their engine's efficiency and power. With a bore size of 4.020 inches and compatibility with 5.7-inch rods, this piston is a perfect fit for both DIY mechanics and professional builders. Speed Pro's innovative DUROSHIELD coating technology ensures durability and longevity, making it an excellent choice for high-performance applications.

These pistons are available in both hypereutectic and POWERFORGED variants, providing options for various performance needs. The exclusive moly-graphite skirt coating significantly reduces friction and wear, promoting better fuel economy and horsepower while safeguarding your engine from damage due to inadequate lubrication.

Key features

• DUROSHIELD skirt coating reduces friction for improved fuel economy and horsepower
• Eliminates scuffing and wear, extending piston life
• Prevents damage from inadequate lubrication, especially during start-up
• Enhances cylinder sealing for reduced blow-by and increased power
• Compatible with both press and float pin types
• No increase in skirt clearance required for installation

Technical details

• CID: 381
• Bore: 4.020 inches
• Stroke: 3.750 inches
• Rod Length: 5.700 inches
• Compression Height: 1.425 inches
• Compression Ratio with 64cc chamber volume: 10.35
• Compression Ratio with 72cc chamber volume: 9.53
• Compression Ratio with 76cc chamber volume: 9.18
• Dome Volume: -12.0cc
• Recommended Ring Set: Moly - SPE251K 020, STD Fit - SPR9903 020, File Fit - SPR9343 025
• Coated skirt for enhanced performance

Applications / fitment

This piston is typically used in high-performance SBC (Small Block Chev) engines, ideal for both street and race applications.

• Passenger vehicles with SBC engines
• Performance builds for racing applications
• Custom street rods and hot rods
• Off-road vehicles requiring enhanced engine performance
• Restoration projects needing reliable power upgrades

Why buy from Mick’s Gone Bush?

• Trusted Australian business focused on reliable power, auto-electrical, and service parts.
• Stock sourced from reputable distributors and brands.
• Practical support for trade, off-grid, and fleet customers.
• Clear shipping, warranty, and customer service.

Frequently asked questions

What is the advantage of DUROSHIELD coating?

The DUROSHIELD coating reduces friction, enhances durability, and essentially eliminates scuffing, which helps prolong engine life.

Can I use these pistons in a standard rebuild?

Yes, these pistons are suitable for both performance builds and standard rebuilds, offering enhanced performance without the need for significant modifications.

What ring set is recommended for these pistons?

The recommended ring sets are Moly - SPE251K 020, STD Fit - SPR9903 020, and File Fit - SPR9343 025.

Are these pistons compatible with my engine?

These pistons are designed for SBC engines, specifically those with a 4.020-inch bore and 5.7-inch rods.

How do I ensure proper installation?

It is advisable to follow manufacturer guidelines for installation and consider consulting a professional mechanic if you are unsure.