Upgrading a small block Chevy (SBC) with a serpentine conversion kit can simplify belt routing, improve accessory reliability, and free up engine bay space. This guide compares five top options from trusted brands, highlighting what each kit includes, key features, and installation considerations. All options listed are designed to fit common SBC models and support essential components like an alternator, power steering, water pump, and AC where applicable.
| Product | Brand | Included | Notes |
|---|---|---|---|
| All Inclusive Serpentine Kit for SBC Engines | CVF Racing | Belt, Pulleys, Bracket, Tensioner, AC, Alt, PS Pump | Remote reservoir PS pump; lifetime warranty |
| SBC Serpentine Pulley Conversion Kit | CVF Racing | Pulleys, Bracket, Belt, Water Pump, AC, PS Pump | USA-made billets; comprehensive |
| Serpentine Kit All Inclusive for SBC | CVF Racing | Belt, Pulleys, Bracket, Tensioner, AC, Alt, Saginaw PS Pump | Reuse lines; easy bleeding |
| Serpentine Kit High Mount SBC | CVF Racing | Pulleys, Brackets, Hardware; 8-rib design | Complete kit; belts not included |
| Speedmaster 673 Serpentine Drive System | Speedmaster | Pulley Kit; complete drive system | Track proven; distinctive DNA |
All Inclusive SBC Serpentine Kit — CVF Racing
The All Inclusive Serpentine Kit from CVF Racing is designed for quick, straightforward installation on 283, 302, 305, 327, 350, and 400 SBC engines. It bundles a belt, pulleys, bracket, tensioner, AC compressor, alternator, and a power steering pump with a remote reservoir. The kit uses a GM style Type 2 PS pump and is backed by CVF Racing’s warranty and tech support, offering a high level of confidence for street and performance builds.
SBC Serpentine Pulley Conversion Kit with AC, PS, and Alternator
Made in the USA from 6061-T6 aircraft-grade billet aluminum, this all-inclusive kit covers SBC setups with AC, PS, and an alternator. It includes pulleys, bracketry, belt, water pump, and AC components for a clean, reliable drive system. The billet construction emphasizes durability, while the included components reduce compatibility concerns across typical SBC engines.
Small Block Chevy SBC Serpentine Kit — All Inclusive
CVF Racing’s all-inclusive SBC kit is engineered for rapid installation on 283, 302, 305, 327, 350, and 400 engines. It includes a belt, pulleys, bracket, tensioner, AC compressor, alternator, and a Saginaw-style power steering pump. The Saginaw setup allows for reusable lines and easier bleeding, making it a practical choice for both street builds and track-ready SBC builds.
SBC High Mount Serpentine Kit — Long Water Pump
This high-mount SBC kit features polished billet aluminum pulleys and brackets machined in the USA. It includes 8 ribs for increased grip and reduced slippage, along with all pulleys, brackets, and hardware for a complete install. Belts and accessories are not included, so compatibility with existing belt setups should be verified.
Speedmaster 673 Serpentine Drive System
Speedmaster’s 673-series serpentine system is a compact, track-proven drive solution for SBCs. The kit focuses on reliable pulley integration and effective belt routing to optimize performance and longevity. It emphasizes a strong blend of traditional design with modern materials to support demanding street and the occasional race use case.
Chap Performance SBC Serpentine Kit ALT PS A/C 283-400
Chap Performance’s all-inclusive SBC kit covers alternator, power steering, and air conditioning for 283 through 400 cubic inch engines. It highlights a 160 Amp CS130 one-wire alternator, Sanden-style AC compressor, and a high-volume aluminum water pump with a short reverse-rotation design. The kit is designed to streamline installations while delivering solid accessory performance for daily drivers and hot-rods alike.
Chap Performance SBC Serpentine Kit with Rear Supports
Chap Performance’s rear-supported SBC kit adds structural stability with reinforced brackets for greater rigidity and reduced belt deflection. It is marketed as all-inclusive for 283, 302, 327, 350, and 400 SBC engines and emphasizes a secure mounting system to sustain performance under load, with several components designed to minimize belt slip and deflection during hard acceleration.
Chap Performance SBC Serpentine Pulley Kit ALT A/C 350 Circles
Chap Performance’s ALT A/C SBC kit focuses on a reliable 160 Amp CS130 alternator, chrome-plated finish, and a Sanden-style 7176 AC compressor. It combines a high-volume water pump with a short reverse-rotation design to fit tight engine bays and maintain efficient cooling alongside accessories for SBC builds.
Buying Guide
- Compatibility: Confirm engine displacement, mounting pattern, and water pump type (short vs. long). Some kits are designed for high-mount configurations or particular pump styles.
- Included components: All-inclusive kits simplify install but verify if belts, pulleys, brackets, and hardware are included. Some kits exclude belts or certain accessories.
- Alternative to reuse parts: Some kits allow reuse of existing lines (Saginaw PS pumps) or offer rear supports for added rigidity; weigh installation complexity against durability.
- Material and construction: Billet aluminum pulleys and CNC-machined brackets can improve longevity and alignment but may come at a premium.
- Warranty and support: A robust warranty and accessible tech support can reduce downtime during installation and tuning.
- Performance objectives: If you need strong AC performance, ensure an appropriate AC compressor and drive layout. For street cars, reliability and quiet operation may trump peak performance.
- Maintenance and serviceability: Consider kits with easy bleed paths and straightforward belt tensioning for regular maintenance.
Choosing a serpentine kit for SBC engines involves balancing fitment, included hardware, and the intended use. The options above cover a spectrum from budget-friendly all-inclusive kits to billet-aluminum builds designed for durability and precision. When evaluating, consider your existing accessories, engine bay space, and whether you prioritize ease of installation or maximum performance and longevity.