The Chevrolet 350 small-block remains a favorite among enthusiasts seeking more performance without overcomplicating maintenance. This guide features five carefully selected cam and kit options designed to boost torque, improve throttle response, and optimize daily driving or street/strip performance. Each pick comes from reputable brands and is paired with lifters, timing components, or installation tools to ensure a complete upgrade path. Below is a quick summary of the featured products to help you compare options at a glance.
| Product | Brand | Notes |
|---|---|---|
| Thumpr Cam Kit | REDLINE ENGINE SUPPLY | Hydraulic cam; street/strip potential |
| Big Mutha Thumpr Cam Kit | REDLINE ENGINE SUPPLY | High lift; aggressive idle |
| Stage-2 HP Engine Rebuild Kit | Enginetech | Full rebuild with cam and pistons |
| Chevy 350 Roller Lifters Kit | maXpeedingrods | Hydraulic roller lifters |
| Cam Bearing Installation Tool | 1409KMT | Bearing tool for SBC engines |
Genuine COMP CAM 12-600-4 Thumpr 227/241 Camshaft Kit
The COMP CAM 12-600-4 Thumpr 227/241 hydraulic cam is designed for Chevrolet small-block engines from 262 to 400 cubic inches. This kit includes the camshaft and high-performance lifters as part of a bundle engineered for high quality and value. It is well-suited for street-driven applications where a pronounced thump and strong mid-range torque are desired. The cam profile supports a lively idle and responsive throttle, especially when paired with appropriate gearing and a torque-friendly rear differential. Expect a significant increase in combustion chamber efficiency and improved engine breathing at mid RPM ranges.
Key features emphasize durability and performance consistency, with an emphasis on a stable hydraulic lifter design and compatibility with common SBC setups. This option is ideal for enthusiasts seeking a noticeable upgrade without moving into extreme lift or aggressive idle tones that might affect daily usability.
Genuine COMP CAM 12-602-4 Big Mutha Thumpr 243/257 Camshaft Kit
The 12-602-4 Big Mutha Thumpr cam is another COMP CAM and ENGINETECH bundle designed for Chevrolet small-blocks in the 262-400 range. This option delivers a higher lift (.500/.486) and is paired with high-performance lifters, a double roller timing setup, and additional components needed for a robust performance upgrade. It excels in street/strip applications where strong torque early in the RPM band translates to improved acceleration and more assertive throttle response. The kit is best suited for engines configured with higher compression, appropriate exhaust headers, and a suitable rear gear setup to maximize the cam’s potential.
Expect a rougher idle and a more aggressive sound profile, alongside a tangible improvement in mid-to-high RPM breathing when matched with the right supporting hardware. This choice suits builders aiming for a more aggressive, performance-centered SBC build while maintaining street driveability.
Master Engine Rebuild Kit For 67-85 Chevy SBC 350
The Enginetech Master Engine Rebuild Kit is a comprehensive package designed to refresh a 67-85 Chevrolet 350 small-block. The kit includes a full gasket set, pistons with 10:1 compression, piston rings, bearings, a timing set, a high-volume oil pump, a Stage-2 HP cam (lift 0.443/0.465, duration 214/224, lobe separation 112), lifters, freeze plugs, and valve stem seals, with size options for pistons and bearings. This kit is positioned for a full rebuild that balances performance with reliability, leveraging ISO and TS-compliant components to ensure longevity. It suits enthusiasts pursuing a more modern cam profile alongside a solid, rebuild-ready foundation.
Benefits include a cohesive parts assortment designed to work together, reducing sourcing complexity, and the Stage-2 cam providing a clear performance gain without veering into extreme lift that could impact driveability. It is particularly attractive for those planning a combined performance upgrade with a stock-like balance and enhanced throttle response.
maXpeedingrods Chevy 350 Roller Lifters
The maXpeedingrods hydraulic roller lifters are designed for Chevy small-blocks in the 350 range and compatible with common SBC camshaft configurations. This lifter kit targets improved valve train performance, reduced friction, and smoother operation suited for hydraulic roller camshafts. The kit’s lifter dimensions are specified to match standard SBC mounting, and it accommodates engines across a wide range of displacement footprints within the small-block family. It’s a practical upgrade for builders focusing on durability and consistent valve train performance when paired with a compatible camshaft and timing system.
Considerations include ensuring proper oiling, cam lobe compatibility, and the correct lifter bore size. The lifters work best when combined with a compatible cam profile and timing set, and they can contribute to a steadier idle and improved high-RPM breathing when used as part of a broader performance plan.
Cam Bearing Installation & Removal Driver Tool
The Cam Bearing Installation & Removal Driver Tool from 1409KMT is designed to simplify the process of installing or removing cam bearings in Chevy SBC engines (283/327/350/383). The tool is constructed from high-quality aluminum and is designed to minimize bearing damage during operation. It supports quick guides and drivers, delivering durability and wear resistance essential for repetitive use. This tool is a practical addition to any SBC engine rebuild or cam swap project, helping to ensure proper alignment and seating of cam bearings, which is critical for smooth timing and reliable oil flow.
Buying Guide: Key Purchase Considerations
- Goal alignment: Determine whether you want a street-driven cam with a broader RPM range, or a more aggressive cam for strip performance. Thumpr variants emphasize a distinctive idle and mid-range torque, while higher lift options target peak power at higher RPMs.
- Cam lift and duration: Higher lift and longer duration improve high-RPM breathing but can affect idle quality and vacuum. Pair the cam with correct compression, exhaust, and gearing to maximize results.
- Supporting components: A complete upgrade often requires compatible lifters, timing chain, and gaskets. For longer-term reliability, choose kits that bundle these parts, as seen in the Cam Kit options from REDLINE ENGINE SUPPLY and Enginetech.
- Engine condition: For a full rebuild, consider Stage-2 or higher cams paired with pistons and bearings that match your compression goals and driving needs, as offered by the rebuild kits.
- Lifter type and compatibility: Hydraulic lifters reduce maintenance and chatter, but roller lifters can offer durability and improved valve train efficiency with certain cams. Verify compatibility with your chosen cam profile.
- Installation considerations: Tools like the Cam Bearing Installation Tool simplify tasks and reduce risk of bearing damage, an important factor if you’re performing a home rebuild or upgrade.
- Noise and idling: Aggressive cams typically yield louder idle or choppier idle. Ensure this aligns with your vehicle’s intended use and local noise regulations.
- Reliability and warranty: Look for components with clear performance specifications and warranties. Bundled kits from reputable brands provide traceable quality and compatibility.
How To Choose The Right Option For Your 350 SBC
To pick the best cam or kit for your 350 SBC, start with your target use case: daily driver, weekend cruiser, or performance-oriented build. If you value a noticeable but manageable improvement in throttle response and a distinctive idle, a Thumpr-style cam from COMP CAM is a solid choice, especially when paired with correct supporting components. For those pursuing a more aggressive seat-of-the-pants feel with strong mid-range torque, the Big Mutha Thumpr offers higher lift and a more assertive sound, albeit with potential idle roughness.
A full rebuild kit from Enginetech provides a balanced pathway for owners considering a complete refresh, combining piston upgrades, bearings, a Stage-2 HP cam, and other essential parts. For buyers focused on reliable valve train performance with a modern feel, the hydraulic roller lifters from maXpeedingrods can complement a compatible roller cam setup. Lastly, even small but important tools like the Cam Bearing Installation Tool reduce installation risk and improve long-term engine reliability.
In sum, the best choice depends on your engine’s condition, your budget, and your performance goals. Each option in this guide addresses common SBC upgrade objectives while staying mindful of street usability and long-term reliability.