For classic Chevy enthusiasts seeking a noticeable jump in horsepower and sound from a 350 small-block, a stage 3 cam kit can unlock strong mid to high-end power without sacrificing too much low-end torque. This guide highlights five solid options, including complete cam kit bundles and degreeing-ready kits, to help you compare profiles, compatibility, and overall value. Each option comes with engineered parts designed to work together for reliable operation and a lopey, race-inspired idle that many enthusiasts seek.
Summary of chosen products:
| Product | Brand | Key Features | URL |
|---|---|---|---|
| Sloppy Mechanics Stage 3 Camshaft Kit | Michigan Motorsports | Cam, PAC springs, seals, gaskets, pushrods; 238/242 duration, .595″/.595″ lift, 112 LSA; fits Gen III/IV LS engines | Link |
| BTR Stage 4 Truck Cam Install Kit | Michigan Motorsports | Cam 224/230, .553″/.553″ lift, 109 LSA; includes gaskets, lifters, trays; suitable for LS trucks | Link |
| E1840P Sloppy Mechanics Stage 2 Cam Kit | OWNWEEDA | Hydraulic roller, 0.050″ lift: 228° intake / 230° exhaust; 0.585″ lift; seals and springs included | Link |
| COMP Cams 4938 Pro Camshaft Degree Kit | Comp Cams | Comprehensive degreeing kit: wheel, fixture, dial indicators, TDC stop, and more | Link |
Note: The 350 small block (SB/ SBC) often benefits from cam profiles that balance midrange torque with a robust top-end push. The options below provide varied approaches—from full kit bundles with springs and pushrods to degreeing aids—so you can tailor your build to daily driving, weekend autocross, or straight-line performance.
Sloppy Mechanics Stage 3 Camshaft Kit
The Sloppy Mechanics Stage 3 Camshaft Kit for LS engines is highlighted for its aggressive profile with a lopey idle, intended to deliver significant power gains while controlling cost. Included components: PAC springs, seals, gaskets, and pushrods, making it a ready-to-install option for range-tested 4.8L to 6.2L engines that share common LS family part compatibility. The cam profile is specified around 238/242 durations and .595″/.595″ lift with a 112 LSA, placing performance emphasis on higher RPM across compatible Gen III/IV LS platforms. While targeted at LS builds, enthusiasts often explore similar cam archetypes for SBC swaps, given the performance emphasis and tractable pricing. This kit is well-suited for weekend warriors seeking a bold lope and substantial horsepower improvements without premium aftermarket costs.
BTR Stage 4 Truck Cam Install Kit
Brian Tooley Racing’s Stage 4 Truck Cam Install Kit is noted for a powerband shift and strong upper-range torque with a lope that stands out at idle. The cam is described as 224/230 with .553″/.553″ lift and a 109 LSA, optimized for a higher stall converter in tow-oriented or performance-tuned daily drivers. The kit includes the necessary gaskets and parts to facilitate installation, ensuring you have what you need for a reliable assembly. This option is particularly appealing to those seeking a robust shift in power and a pronounced cam sound, though it may not be ideal for everyday towing if you rely heavily on low-end response.
E1840P Sloppy Mechanics Stage 2 Cam Kit
The E1840P kit by OWNWEEDA targets LS-series engines and includes a hydraulic roller camshaft along with PAC1218 springs and 12482063 seals. The cam’s specifications feature a 0.050″ lift with intake duration around 228° and exhaust 230°, with lift of 0.585″ and a lobe separation angle of 112°. The advertised durations are higher (283° intake, 286° exhaust) for broad initial valve opening, aiding top-end breathing. The included springs are sized to manage valve train forces under various RPMs, contributing to stable operation at elevated engine speeds. This kit suits 4.8L-6.2L engines and can enhance performance for naturally aspirated builds or turbocharged setups where valve control is critical.
COMP Cams 4938 Pro Camshaft Degree Kit
The COMP Cams 4938 Pro Camshaft Degree Kit is a complete package for precise cam timing. It includes essential tools for camshaft degreeing with the cylinder heads off, such as a pro degree wheel, degreeing fixture, dial indicators, TDC stop, and related hardware. This kit is designed for builders who want to dial in their cam timing with accuracy, ensuring that the target duration and lift are achieved in a way that aligns with the engine’s specific configuration. While not a cam itself, this degree kit complements a stage 3 cam package by enabling precise installation and verification—key for maximizing performance gains and motor longevity in SBC builds.
Buying Guide: Key Considerations When Selecting a Stage 3 Cam Kit for a 350 Small Block
When choosing a stage 3 cam kit for a 350 small block, consider how you intend to use the engine and what other parts you already own or plan to upgrade. Below are critical factors to evaluate:
- Cam profile and power band: Stage 3 cams typically emphasize mid-to-high RPM performance. Decide whether you want a broad torque curve for street driving or a sharper peak for track use.
- Valve train components: Many cam kits include springs, seals, and pushrods. Ensure valve springs match your cam lift to avoid float at high RPM and potential valve breakage.
- Compression and fuel delivery: Higher-performance cams often pair with higher compression or upgraded fuel systems. Confirm compatibility with your fuel injectors or carburetor setup and ignition timing.
- Head and intake compatibility: Some SBC builds may require porting, different intake manifolds, or different cylinder heads to fully realize the cam’s potential. Verify clearance and needed upgrades.
- Installability and accessories: Degreeing kits and timing tools help ensure accurate cam timing. Consider whether you want an all-in-one kit or separate purchase of tools and components.
- Daily usability vs. weekend performance: If you use the vehicle daily, aim for a cam that maintains drivability, cold-start reliability, and reasonable idle quality. For weekend cars, a more aggressive cam can be acceptable with appropriate supporting mods.
- Costs and warranty: Balance the total cost of parts with the expected gains. Some brands offer better warranty protection or compatibility across engine models, which can be valuable over the life of the build.
- Compatibility notes: While the focus here includes Stage 3 concepts, ensure the cam is compatible with your engine family (classic SBC vs. LS-based setups) and with any forced induction plans if applicable.
In summary, a stage 3 kit for a 350 small block should be chosen based on how well it integrates with your existing components and the kind of RPM range you aim to exploit. The options above provide a range of approaches—from complete cam packages with supporting hardware to comprehensive degreeing tools—that help maximize performance while preserving reliability.