Best Aluminum Heads For Small Block Chevy: 10 Options Compared

#1 · Best Overall

1. Speedmaster PCE281.2010

• Dimensions: 22.05 x 9.5 x 5.51 in
• Weight: 50.8 lb

Best for: Assembled race-build pair.

Why it ranks #1: A pair arrives with springs and valves installed; the 205cc runners and 64cc chambers suit performance builds, though the listing prohibits street use.

A bolt-on pair arrives with springs and valves installed, giving small-block Chevy builders an assembled starting point rather than bare castings to equip. Its 205cc intake runners and 64cc chambers specify the airflow and chamber combination, while straight plugs and hydraulic flat-tappet configuration narrow the intended setup.

The assembled format can reduce the parts-installation work associated with bare heads, since springs and valves are already installed. A 205cc intake runner and 64cc chamber provide concrete sizing details for an engine combination, and the straight-plug layout identifies the plug orientation to account for during build planning. The listed compatibility spans Chevy 265 through 400 small blocks, including 383. The legal notice is decisive: these heads are intended for racing applications only, not street use.

Skip it if you need cylinder heads for street driving; these are explicitly restricted to racing applications, not street use.

For a small-block Chevy race builder seeking an assembled pair with springs and valves already installed, this Speedmaster offers specified 205cc runners and 64cc chambers. Its stated racing-only restriction rules it out for street-driven builds.

Listed on Amazon as: Assembled Cylinder Heads Compatible with Small Block Chevy 265/283/305/307/327/350/383/400 205cc/64cc – Straight Plug Hydraulic Flat Compatible, Springs/Valves Installed, Bolt-On Pair

#2 · Best Flat-Tappet Pair

2. Edelbrock 5089

• Weight: 59 lb

Best for: Hydraulic flat-tappet pair.

Why it ranks #2: The complete pair is specified for hydraulic flat tappets, with 185cc intake runners, 60cc exhaust runners, and 2.02/1.60-inch valves.

A complete pair for hydraulic flat-tappet applications is the defining format of the Edelbrock 5089, with aluminum construction and 64cc combustion chambers. The listed 2.02-inch intake and 1.60-inch exhaust valves pair with 185cc intake and 60cc exhaust runners, supplying useful combination-planning dimensions.

The complete-pair format gives buyers both heads for a build, while the hydraulic flat-tappet designation narrows the intended valvetrain application. Its 64cc chamber and 185cc intake runner are key sizing figures; the 60cc exhaust runner and 2.02/1.60-inch valve diameters add detail for evaluating the airflow and valve arrangement. Manganese bronze guides and a 9/16-inch deck thickness are also specified. These dimensions make the listing useful for a builder comparing a defined set of head specifications.

Skip it if you must choose a head by specified straight- or angle-plug orientation; the supplied details do not state it.

This suits a builder seeking an aluminum pair for a hydraulic flat-tappet combination and comparing chamber, runner, valve, and deck dimensions. Spark-plug orientation is not specified in the supplied product details.

Listed on Amazon as: Edelbrock 5089 Cylinder Head

#3 · Best Assembled Single

3. FLO-TEK 102505

• Dimensions: 24 x 10.4 x 8.7 in
• Weight: 22 lb

Best for: Straight-plug assembled head.

Why it ranks #3: This assembled aluminum head has 180cc intake runners, a 64cc chamber, 1.460-inch springs, and straight plugs, simplifying parts selection.

A straight-plug layout and assembled configuration make this FLO-TEK head a clearly specified option for builders seeking installed valvetrain components. Its 180cc intake, 64cc chamber, 2.020/1.600-inch valves, and 1.460-inch springs provide concrete dimensions for a small-block Chevy combination.

Unlike a bare head, this listing identifies the product as assembled, which can simplify planning around components already included in the unit. The 1.460-inch springs are specified alongside 2.020-inch intake and 1.600-inch exhaust valves, giving builders key valvetrain dimensions to consider together. A 180cc intake and 64cc chamber further describe the head's sizing, and straight plugs establish the ignition layout. The listing is for one head, so buyers assembling a pair should account for that package quantity.

Skip it if you need both cylinder heads in one package; this listing specifies a quantity of one.

This fits a small-block Chevy builder seeking one assembled straight-plug head with specified springs, valves, runner, and chamber sizes. For a complete pair, the single-head package is a key consideration.

Listed on Amazon as: FLOTEK 102505 Cylinder Head, Assembled, 2.020/1.600 in Valves, 180 cc Intake, 64 cc Chamber, 1.460 in Springs, Straight Plug, Aluminum, Compatible with Small Block Chevy, Each

#4 · Best Bare Pair

4. IMOOA Angle Plug Pair

Best for: Angle-plug bare-head pair.

Why it ranks #4: The pair covers small-block engines from 283 to 400, with 205cc runners, 64cc chambers, angle plugs, bronze guides, and ductile iron seats.

Angle spark-plug orientation sets this IMOOA pair apart, with a broad listed range of Chevy small-block engines from 283 through 400, including 302 and 383. Its 205cc intake runners and 64cc chambers provide useful sizing, while the 2.020/1.600-inch valve diameters specify the intake and exhaust dimensions.

The pair arrives as bare cylinder heads, so the builder must plan the remaining assembly; the listing does identify bronze valve guides and ductile iron seats as included construction details. High-grade aluminum is paired with 205cc runners and 64cc chambers, giving the buyer both material and airflow/chamber specifications for combination planning. Angle plugs and the stated 2.020-inch intake and 1.600-inch exhaust valves further define the setup. Compatibility is listed for Chevy small blocks up to 1986.

Skip it if you want springs and valves installed in an assembled head; this package is listed as bare heads.

This pair suits a builder of a listed Chevy small block up to 1986 who wants angle plugs, 205cc runners, and 64cc chambers. The bare format means assembly remains part of the project.

Listed on Amazon as: One Pair Bare Angle Plug Cylinder Heads For Chevy Small Block 283-400

#5

5. Auto Dynasty SBC Pair

• Weight: 44 lb

Best for: Pre-1986 square-port pair.

Why it ranks #5: A two-head package offers 200cc intake runners and 68cc chambers for listed SBC applications, but is explicitly limited to competition use.

A pack of two bare heads supplies the matching-pair format for SBC builds, with 200cc intake runners and 68cc chambers defining the airflow and chamber sizing. Auto Dynasty lists compatibility with 302, 327, 350, 383, and 400 small-block engines up to 1986, but excludes Vortec-style intake manifolds.

The pair format means both cylinder heads are included, while the bare construction leaves assembly work to the builder. Square intake and exhaust ports and a 200cc intake runner identify the port configuration; the 68cc chamber is listed alongside a claim of retaining stock compression for 1970-and-earlier models. Pre-drilled accessory bolt holes and three-angle valve seats offer specific installation and seat details. The product is restricted to competition racetrack use, and Vortec-style intake manifolds are incompatible.

Skip it if you plan to use Vortec-style intake manifolds or drive on the highway; this listing excludes both applications.

A competition-racetrack SBC builder seeking a pair of bare square-port heads can use the listed 200cc runner and 68cc chamber details to assess the combination. It is not for highway use or Vortec-style intake manifolds.

Listed on Amazon as: Auto Dynasty Aluminum Bare Cylinder Head Compatible with Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc Chamber, Pack of 2

#6

6. FLO-TEK 101-500

• Dimensions: 22 x 8.6 x 7.1 in
• Weight: 22.1 lb

Best for: 180cc angle-plug bare head.

Why it ranks #6: This bare aluminum head pairs 180cc intake runners and a 64cc chamber with 2.02/1.60-inch valves and angle plugs; the listing is for one head.

A 180cc intake runner is the key sizing distinction on this FLO-TEK bare aluminum head, paired with a 64cc chamber and angle-plug layout. Its 2.020-inch intake and 1.600-inch exhaust valve dimensions identify the specified valve sizes for a small-block Chevy replacement or performance build.

The bare format gives builders a head to incorporate into their own assembly plan, rather than a listed assembled unit. The 180cc intake volume and 64cc chamber provide two concrete sizing points, while the 2.020/1.600-inch valve dimensions help define the valve configuration. Angle plugs distinguish the plug layout during engine planning. The product description identifies aluminum construction and small-block Chevy compatibility, but does not provide a broader engine-size or year range in the supplied details.

Skip it if you need an assembled head or a stated compatibility range by engine size and year; neither is provided in this listing.

This suits a small-block Chevy builder who has an assembly plan and wants a bare aluminum head with a 180cc intake, 64cc chamber, and angle plugs. The supplied fitment details do not specify engine sizes or years.

Listed on Amazon as: Floo Tek Performance Heads 101-500

#7

7. DNA MOTORING CYLH-SBC-350

• Weight: 21.3 lb

Best for: Bare square-port SBC build.

Why it ranks #7: The bare head lists 200cc ports, a 68cc chamber, 2.020/1.600-inch valves, and fitment for several SBC sizes manufactured in 1986.

Square intake and exhaust ports distinguish this bare DNA MOTORING head, while its 200cc intake volume and 68cc chamber spell out key sizing for an SBC build. It is listed for 302, 327, 350, 383, and 400 engines manufactured in 1986, with straight plugs and 23-degree valve angles.

Because this is a bare head, builders can plan the remaining valvetrain work around their own combination rather than receiving an assembled unit. Its 2.020-inch intake and 1.600-inch exhaust valve diameters, three-angle valve seat, and bronze guides provide specific details for parts planning. The 200cc intake port and square-port layout help identify the airflow configuration. Fitment is limited in the listing to the named small-block engines manufactured in 1986, so engine application matters.

Skip it if you want a ready-to-install assembled head; this listing is for a bare cylinder head requiring further build work.

This suits an SBC builder assembling a 1986-manufactured 302, 327, 350, 383, or 400 combination who wants square ports and defined valve sizing. Its bare format and specified engine-year fitment are important boundaries.

Listed on Amazon as: DNA MOTORING Aluminum Bare Cylinder Head Compatible with Chevy SBC 302/327/350/383/400, CYLH-SBC-350

#8

8. Pateyney SBC 350 Head

• Weight: 21.4 lb

Best for: Angle-plug bare-head project.

Why it ranks #8: The bare angle-plug head has 205cc intake runners, a 64cc chamber, and installed guides and seats, but its package includes one head.

Installed guides and seats give this Pateyney bare head two components already in place, while its angle-plug layout sets a distinct ignition-plug orientation. The listed 205cc intake, 64cc chamber, and 2.02/1.600-inch valve sizes provide concrete sizing for a small-block Chevy 350 or 400 build.

The head is sold bare, but guides and seats are installed, so builders can account for those included components while planning the remaining assembly. A 205cc intake runner pairs with a 64cc chamber, and the 2.02/1.600-inch valve dimensions further define the combination. Its angle plugs distinguish it from straight-plug options when considering the engine layout. The listing names SBC 350 and 400 fitment and recommends professional installation, making installation planning especially relevant.

Skip it if you need a complete assembled pair; this product is listed as one bare cylinder head.

This is for a builder working with a listed SBC 350 or 400 who wants an angle-plug bare head with guides and seats already installed. Account for the single-head package, remaining assembly, and professional-installation recommendation.

Listed on Amazon as: Cylinder head for Small Block Chevy SBC 350 Aluminum Bare Cylinder Head Angle Plug

#9 · Highest Listed Flow

9. Brodix 1320000

• Dimensions: 20.5 x 13.4 x 9.4 in
• Weight: 51 lb

Best for: CNC-port high-lift build.

Why it ranks #9: The Dragon Slayer DS 225 listing describes CNC-ported chambers and flow over 300 CFM at .600-inch cam lift, but supplies few fitment details.

CNC-ported combustion chambers with listed flow exceeding 300 CFM at .600-inch cam lift define this Brodix Dragon Slayer small-block Chevy head. The 23-degree DS 225 series designation points to a specific performance-oriented configuration for builders evaluating high-lift cam combinations and out-of-the-box horsepower claims.

The CNC-ported combustion chambers are specified to flow over 300 CFM at .600-inch cam lift, giving builders a concrete high-lift flow figure to weigh against their cam setup. Its 23-degree Dragon Slayer DS 225 series identification further clarifies the configuration. Brodix also states that castings use A-356 virgin aluminum and are tested before in-house processing. The supplied details emphasize port flow and casting process, but do not provide valve sizes, chamber volume, or assembled status for planning those aspects.

Skip it if you need stated valve diameters or chamber-volume figures before choosing a head; this listing supplies neither measurement.

This fits a small-block Chevy builder evaluating the DS 225 series and a cam setup operating at the stated .600-inch lift point. The supplied specifications leave valve sizing and chamber volume unlisted.

Listed on Amazon as: Brodix 1320000 Cylinder Head

#10

10. VEVOR SBC Head Assembly

• Dimensions: 19.69 x 7.48 x 5.12 in
• Weight: 26.9 lb

Best for: CNC-machined replacement assembly.

Why it ranks #10: This assembled replacement is listed for SBC 327, 350, and 383 applications, but provides no runner or chamber dimensions for performance comparison.

CNC precision machining of the combustion chamber and intake and exhaust passages is the defining feature of this VEVOR replacement assembly. The listing names SBC 327, 350, and 383 applications, including Corvette, Camaro, and Z06, making it a replacement-oriented option for those stated engine and vehicle combinations.

The replacement-assembly format targets cylinder-head failure or damage, while CNC machining of the chamber and both passage types is described as producing smoother airflow than standard casting. Those details connect the machining process to airflow and replacement needs without requiring a bare-head-only planning approach. The listing names SBC 327, 350, and 383 plus Corvette, Camaro, and Z06 applications. The manufacturer advises confirming the engine model and vehicle make, so application checking remains part of the replacement workflow.

Skip it if you need published intake-runner and chamber-volume figures to match a specific performance combination; those dimensions are not supplied here.

This fits a buyer replacing a damaged cylinder head on one of the listed SBC 327, 350, or 383 applications, including named vehicle lines. It is less informative for builders who need runner and chamber volume specifications.

Listed on Amazon as: VEVOR Engine Cylinder Head Assembly Replacement, Aluminum Engine Cylinder Head Kit, Compatible with Small Block Chevrolet Engines, SBC 327/350/ 383, Corvette, Camaro, Z06