Looking for a complete rebuild kit that covers core gaskets, pistons, bearings, and timing components for a 350 engine? This guide highlights five solid options, focusing on versatility and value for common 350 builds. The top picks cater to riders and restorers working on Yamaha-referenced 350 units and classic GM small-block V8s. Each entry notes who it is best for, key benefits, and any limitations to consider.
| Product | Ideal For | Why It Stands Out |
|---|---|---|
| Camshaft & 83mm Cylinder Piston Complete Gasket Top End Rebuild Kit for Yamaha Warrior 350 / Raptor 350 / Bruin 350 (1987-2006) | ATV enthusiasts, mid-range restoration | Includes top-end gaskets, piston, and cam components; compact package for Yamaha 350 models |
| DNJ EK3101M Master Engine Rebuild Kit for 1967-1980 Buick/Chevrolet/GMC 350cid V8 | Classic GM small-block restorations | Broad compatibility with iconic 350-based small-blocks; comprehensive kit |
| LowPricedAutoParts Master Engine Rebuild Kit for 1993-1995 Chevy GM 350 5.7L V8 | Street/stock daily drivers | Premium rings and standard pistons; includes full gasket set and timing components |
| LowPricedAutoParts Master Engine Rebuild Kit for 1967-1985 Chevy GM 350 5.7L V8 | Classic Chevy small-block builds | Complete overhaul kit with recommended machining guidance; solid value |
| TH350 Transmission Raybestos Stage 1 Deluxe Level 2 Rebuild Kit | GM 350 transmissions | High-quality clutches and gasket kit; specialized for transmission rebuilds |
Camshaft & 83mm Piston Kit for Yamaha 350 Series
This kit is designed for ATV enthusiasts and riders working on Yamaha Warrior, Raptor, and Bruin 350 models from 1987 to 2006. It combines a camshaft and a 83mm piston with gasket components to reset top-end performance. The kit is best for a mid-range rebuild where the goal is restoring compression and timing alignment without a full engine overhaul. A potential limitation is the absence of lower-end bearings and seals, which may require a separate purchase for a complete bottom-end refurbishing.
Best for: Yamaha 350 riders seeking a focused top-end rebuild with compatible pistons and cam parts. Why chosen: It provides essential top-end components in one convenient package for specific Yamaha models.
Caution: Verify compatibility with your exact model year and ensure you have or will obtain compatible bottom-end parts if needed.
Yamaha 350 Top-End Rebuild Kit
DNJ EK3101M Master Engine Rebuild Kit targets a broad range of classic GM 350 V8 builds, spanning 1967 through 1980. It consolidates pistons, rings, bearings, cam bearings, a full gasket set, a camshaft, lifters, timing set, and oil pump. This kit is suited for restomods and restorations where the 350 small-block is the core engine. It serves as a comprehensive option for enthusiasts planning a full engine refresh or a major overhaul rather than a simple top-end repair.
Best for: Classic GM enthusiasts performing full 350 small-block rebuilds. Why chosen: It offers a wide range of necessary components in one package for a complete overhaul.
Caution: Requires careful measurement and compatible machining guidance; not a drop-in kit for engines with unusual clearances or unusual bore sizes.
GM 350 5.7L V8 Master Rebuild Kit (1993-1995)
This kit from LowPricedAutoParts targets 1993-1995 Chevy GM 350 engines (5.7L V8) and emphasizes premium rings and standard-size pistons along with essential bearings and lifters. It also includes a full gasket set, timing components, oil pump, and a stock cam. The kit is ideal for stock rebuilds where the goal is restoring factory-style performance and reliability for street use. The included expansion kit and oil system components help ensure proper sealing and oiling in typical daily-driver applications.
Best for: Street-driven GM 350 engines needing a complete, value-oriented rebuild. Why chosen: It balances quality parts with a broad inclusion list, supporting reliable restoration without specialized machining.
Caution: As with many rebuilds, proper clearances and possible machining may be required; verify bore, crank journals, and piston-to-wall tolerances before assembly.
GM 350 5.7L V8 Master Rebuild Kit (1967-1985)
LowPricedAutoParts also offers a 1967-1985 GM 350 rebuild kit, ideal for classic small-block builds with a 2-piece rear main seal block style. The kit includes cast pistons, rings, bearings, cam bearings, a full gasket set, a stock camshaft, lifters, timing set, oil pump, and an expansion plug kit. It is a strong match for restorations aiming to preserve a stock appearance and performance while addressing all major engine internals. A caveat is the need for precise machining and clearances, as this is not a “drop-in” option for engines with worn bores or mismatched components.
Best for: Classic Chevy small-block restorations needing a complete overhaul. Why chosen: It covers all major internal components for a thorough rebuild aligned with factory specs.
Caution: This kit presumes the engine is compatible with standard bore dimensions and stock components; blueprinting is advised for best results.
TH350 Transmission Raybestos Stage 1 Deluxe Kit
This kit focuses on the transmission rather than the engine. It features high-quality Raybestos Stage 1 red friction plates, a premium Transtec gasket kit, a complete clutch and plate set, plus a full sealing and bearing assortment. It is best for GM 350 transmissions undergoing a level 2 rebuild. The package aims to improve shifting smoothness and reliability for drivers who value performance in their transmission.
Best for: GM 350 transmission rebuilds requiring durable clutches and gaskets. Why chosen: It bundles trusted components from Raybestos and a comprehensive gasket set for a thorough repair.
Caution: This is a transmission-specific kit; pairing it with an engine rebuild requires separate engine components if both ends need service.
Buying Guide — Key Considerations for a 350 Rebuild Kit
What should you check before buying? Start with compatibility: confirm engine family (Yamaha 350 ATV models or GM 350 small-blocks) and model year range. Consider whether you need a top-end kit, an engine-wide kit, or a transmission-focused kit. Look for a complete gasket set, pistons, rings, bearings, camshaft, lifters, oil pump, and timing components, unless you only need replacement parts for a specific subsystem.
Material quality and bore size matter. Choose standard or premium rings based on intended use (street, performance, or heavy-duty). For GM builds, verify that the kit matches the rear main seal style and the bore/stroke specifics. If you plan machining or blueprinted assembly, bear in mind the kit’s guidance about clearances and assembly tolerances.
Ease of installation varies. Some kits assume basic machine work and assembly knowledge, while others recommend professional machining. For classic GM engines, confirm compatibility with flat tappet cams and OHV configurations, and ensure you have the right tools for lifter and timing gear installation.
Cost-to-value is essential. A complete kit can reduce overall procurement time and ensure component compatibility, but it may include items you don’t need for a light rebuild. Prioritize kits that align with your intended scope: top-end only, full engine overhaul, or transmission rebuilds.
Frequently Asked Questions
- What is included in a typical 350 rebuild kit? Most kits include pistons, rings, bearings, cam bearings, a gasket set, a camshaft, lifters, a timing set, and an oil pump. Some kits also include expansion plugs and seals.
- Do I need machining with a 350 rebuild kit? Yes, depending on bore and journal wear. Many kits assume professional machining for proper clearances and blueprinting.
- Is a top-end kit enough for a worn engine? For engines with significant wear, a top-end kit may restore compression but could miss bottom-end issues. Full engine kits address more areas but cost more.
- How do I choose between GM and Yamaha 350 rebuild kits? Choose based on your engine family and model year. GM 350 small-blocks use different internals than Yamaha 350 ATV engines; confirm compatibility before purchase.
- Can I reuse old bearings or pistons? Reusing worn bearings or pistons is generally not recommended. Inspect clearances and consult a machinist for reuse viability.
- Is a transmission rebuild kit useful for a GM 350 vehicle? If the transmission is part of your restoration plan, a dedicated transmission kit like the Raybestos Stage 1 can improve longevity and shifting.