Best Aluminum Heads For Small Block Chevy: Compare 10 Options

#1 · Best Overall

1. FLO-TEK 102-505

• Weight: 22 lb

Best for: Assembled straight-plug head.

Why it ranks #1: Assembled aluminum head with specified 2.020/1.600-inch valves, 180cc intake, 64cc chamber, and 1.460-inch springs; listed for Small Block Chevy.

The FLO-TEK 102505 arrives assembled with 2.020/1.600-inch valves and 1.460-inch springs, giving small-block Chevy builders a head with key valvetrain components specified. Its 180cc intake and 64cc chamber figures, straight-plug layout, and aluminum construction help define the configuration for an engine build.

The assembled format and listed valves and springs can reduce separate component sourcing when planning a cylinder-head installation. Its 180cc intake volume and 64cc chamber provide sizing information for evaluating the intended build, while the straight-plug style is a relevant layout detail. The listing specifies one head, not a pair, so buyers planning a two-head replacement need to account for the package quantity. Aluminum construction and stated SBC compatibility round out the supplied configuration information.

Skip it if you need a two-head package; this FLO-TEK listing specifies a quantity of one.

This FLO-TEK head suits a builder sourcing an assembled straight-plug SBC component with valves and springs specified. Its single-head quantity is the key planning boundary for a full two-head replacement, alongside the stated runner and chamber figures.

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

#2 · Best Complete Pair

2. GELUOXI 129006601 Pair

• Package Dimensions: 22 x 9 x 8 in
• Weight: 51 lb

Best for: SBC replacement pair.

Why it ranks #2: A pair of aluminum hydraulic flat-tappet assemblies is listed for 327, 350, and 383 engines, with 190cc runners and 64cc chambers.

A two-head aluminum assembly pair brings 190cc intake runners and 64cc combustion chambers to a replacement package for Chevy small-block 350, 327, and 383 applications. Its hydraulic flat-tappet product line identifies the valvetrain type, while the listed Corvette, Camaro, and Z06 compatibility helps narrow its intended replacement role.

The pair format supplies two cylinder head assemblies for a rebuild, rather than requiring a buyer to source a second head separately. Aluminum construction and the 64cc chamber specification give engine builders key material and chamber details for evaluating the replacement. The 190cc intake runner volume and hydraulic flat-tappet designation further describe the configuration, while stated 350/327/383 compatibility provides an application starting point. The listing does not specify installed valves or other included hardware.

Skip it if you need confirmed included valvetrain hardware; the listing does not say whether valves or springs come installed.

A buyer replacing both heads on a listed 350, 327, or 383 can use the paired assembly format and stated chamber and runner figures to assess the setup. Check the specific build requirements, since installed hardware is not detailed.

Listed on Amazon as: 2x Complete Cylinder Heads Assy for Small Block Chevy 350/327/383

#3 · Best Valve Details

3. Woosphy 129006601 Pair

• Package Dimensions: 22 x 13.5 x 11 in
• Weight: 52.9 lb

Best for: Complete 190cc runner pair.

Why it ranks #3: This aluminum pair lists 190cc runners, 64cc chambers, and 2.020/1.600-inch valves, with replacement fitment for SBC 327, 350, and 383.

A complete two-head aluminum assembly with 190cc intake runners and 64cc chambers gives this Woosphy package a clearly stated SBC replacement configuration. It lists 2.020-inch intake and 1.600-inch exhaust valves, plus compatibility with 350, 327, and 383 small-block engines and Corvette, Camaro, and Z06 applications.

The pair format supplies two assemblies for a head replacement, while the listed valve diameters help builders assess the hardware configuration. A 190cc runner volume and 64cc chamber provide useful figures when comparing the heads with a planned engine setup. The natural-finish aluminum assembly is identified as a replacement for SBC 350, 327, and 383 applications. Although described as complete, the supplied details do not specify whether springs are installed, which may affect parts planning.

Skip it if you need confirmed spring installation before planning assembly; the listing gives valve sizes but does not specify spring status.

This pair is for builders replacing both heads on a listed 350, 327, or 383 and comparing the 190cc runner and 64cc chamber figures. Confirm the spring details from the supplied specifications before finalizing component plans.

Listed on Amazon as: 2x Complete Cylinder Head Assy Replacement for Chevy SBC 350/327/383

#4 · CNC-Machined Ports

4. JURPLIX ECHA-129006601

• Package Dimensions: 20.87 x 9.8 x 9.4 in
• Weight: 28 lb

Best for: CNC-port rebuild candidate.

Why it ranks #4: The listing states CNC-machined combustion chambers and intake and exhaust ports, plus compatibility with 327, 350, and 383 engines.

Fully CNC-machined combustion chambers, intake ports, and exhaust ports are the defining feature of this JURPLIX SBC head assembly. That machining detail gives rebuilders airflow-related port specifications to consider alongside stated compatibility with 327, 350, and 383 V8 engines and Chevrolet Corvette, Camaro, and Z06 models.

CNC machining covers the combustion chambers as well as the intake and exhaust ports, so buyers can evaluate more than just a machined chamber when choosing a replacement. The listed 327, 350, and 383 compatibility makes the assembly relevant to several small-block builds, including the named Corvette, Camaro, and Z06 models. The product is presented for rebuilds, restorations, and performance upgrades. Port specifications are not provided in the supplied details, so engine parameters remain important to the selection.

Skip it if you need stated runner and chamber volumes to compare port sizing; those figures are not supplied for this assembly.

This JURPLIX assembly suits builders weighing CNC-machined chambers and ports for a listed 327, 350, or 383 rebuild. Its compatibility range is useful, but buyers who need quantified port or chamber sizing should account for those missing listing details.

Listed on Amazon as: Engine Cylinder Head Assembly Compatible with Small Block Chevrolet Engines

#5 · Largest Runner

5. Speedmaster PCE281.2010

• Weight: 50.8 lb

Best for: Race-only assembled pair.

Why it ranks #5: An assembled aluminum pair offers 205cc runners and 64cc chambers across broad SBC fitment, but its listing says racing applications only and not street use.

Springs and valves are already installed in this assembled Speedmaster pair, reducing the separate component-installation work for a race-focused small-block build. The listing specifies a 205cc intake runner volume, 64cc chambers, straight plugs, and hydraulic flat-tappet configuration, with compatibility spanning SBC engines from 265 through 400 cubic inches.

Because the heads are assembled with springs and valves installed, the pair can simplify parts coordination compared with sourcing those components separately. The 205cc intake runners and 64cc chambers provide useful configuration details for evaluating a particular engine build, while straight plugs identify the plug style. Its hydraulic flat-tappet product line and broad stated SBC displacement range further guide selection. The key boundary is explicit: this head set is intended for racing applications only and is not for street use.

Skip it if you need cylinder heads for a street-driven vehicle; this listing explicitly excludes street use.

Race builders seeking an assembled pair with springs and valves installed can weigh the 205cc runners and 64cc chambers against their setup. This is not a street-use option, so its stated application boundary should guide the decision.

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

#6

6. Pateyney Angle-Plug Head

• Package Dimensions: 22.5 x 10.4 x 7.25 in
• Weight: 21.4 lb

Best for: Angle-plug bare-head builder.

Why it ranks #6: The bare aluminum head has angle plugs, 205cc intake volume, a 64cc chamber, and installed guides and seats; the package lists one head.

Angle-plug layout distinguishes this Pateyney bare aluminum head, which specifies 2.02-inch intake and 1.600-inch exhaust valves, 205cc intake volume, and a 64cc chamber. Guides and seats are installed, and the listing identifies SBC 350 and 400 applications, giving builders useful configuration details for a component-level build.

This is a single bare cylinder head, so its package format matters when planning a pair or replacing one side of an engine. Installed guides and seats mean those components are already present, while the two-angle valve job provides another machining detail. The 205cc intake and 64cc chamber figures, plus the 2.02/1.600-inch valve sizes, help assess the desired configuration. Professional installation is highly recommended in the listing, making experienced assembly part of the purchase decision.

Skip it if you need two heads in one package; this listing includes one bare head.

A builder needing one angle-plug SBC 350 or 400 head can assess its installed guides and seats alongside the stated valve and chamber figures. It is a single bare head, and professional installation is highly recommended.

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

#7

7. IMOOA Angle-Plug Pair

Best for: Angle-plug bare-head pair.

Why it ranks #7: This bare pair lists angle plugs, 205cc runners, 64cc chambers, and fitment through 1986 for several SBC sizes, including 350 and 400.

This IMOOA pair uses an angle-plug layout and 205cc intake runners with 64cc chambers, giving small-block Chevy builders a defined bare-head configuration. The listed 2.020-inch intake and 1.600-inch exhaust valves, aluminum construction, bronze guides, and ductile iron seats further describe the components for engines up to 1986.

The pair format supplies both bare heads for a two-side build, while the angle-plug style identifies a layout detail to consider during engine planning. Its 205cc runners and 64cc chambers provide key sizing figures, and the stated valve diameters help assess the head configuration. Bronze valve guides and ductile iron seats are specified as durability-related components. Because the heads are bare, buyers should plan for the remaining assembly work rather than expect a complete assembled unit.

Skip it if you want a ready-assembled pair with springs and valves installed; this product is listed as bare.

An SBC builder looking for a pair of angle-plug bare heads can assess the 205cc runners, 64cc chambers, and stated guide and seat materials. The bare format means assembly planning remains necessary for engines up to 1986.

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

#8

8. DNA MOTORING CYLH-SBC-350

• Package Dimensions: 22 x 10 x 8 in
• Weight: 21.3 lb

Best for: Bare square-port SBC head.

Why it ranks #8: The bare aluminum head specifies 200cc intake volume and a 68cc chamber, with fitment listed for several SBC engines manufactured in 1986.

A 200cc intake port with square intake and exhaust ports defines this bare DNA MOTORING aluminum head. Its 2.020-inch intake and 1.600-inch exhaust valve specifications, 68cc chamber, straight-plug layout, and stated compatibility with 1986 SBC 302, 327, 350, 383, and 400 engines help builders assess the configuration.

The bare format leaves this head as a component for a builder to complete, making it relevant when selecting and assembling parts for a specific engine rather than buying a ready-assembled unit. Its 200cc intake port and square port shapes provide configuration details for evaluating the intake and exhaust paths. Bronze valve guides, hardened seats, and a three-angle valve seat are also specified. The listed 1986 engine range and straight-plug layout are important considerations when planning the installation.

Skip it if you want an assembled head with valves and springs already installed; this product is listed as bare.

A builder assembling a compatible 1986-era SBC can use the port, valve, and chamber specifications to assess this bare head. It suits component-level planning rather than a ready-to-install purchase, so account for the remaining assembly work.

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

#9

9. Generic 129006601 Pair

• Package Dimensions: 23.03 x 21.46 x 11.22 in
• Weight: 59.7 lb

Best for: SBC 350/327/383 pair.

Why it ranks #9: This aluminum assembly pair lists 190cc runners and 64cc chambers for 327, 350, and 383 applications, but provides fewer distinct details than higher-ranked pairs.

This two-head aluminum assembly package pairs 190cc intake runners with 64cc combustion chambers for listed Chevy small-block 350, 327, and 383 replacements. The hydraulic flat-tappet product line identifies its configuration, while Corvette, Camaro, and Z06 are among the stated application references for builders considering a replacement set.

A two-head package can cover both sides of a rebuild without sourcing another matching assembly separately. The 190cc intake runner volume and 64cc chamber give buyers concrete configuration figures to compare with their engine plan. Aluminum construction and the hydraulic flat-tappet product line add material and valvetrain context. The stated SBC 350/327/383 compatibility and named Corvette, Camaro, and Z06 applications help screen intended use, though installed valve and spring details are not supplied in the listing.

Skip it if you need documented installed valves and springs before ordering; the supplied details do not establish that equipment.

This pair suits a builder replacing heads on a listed 350, 327, or 383 and comparing 190cc runners with 64cc chambers. The listing identifies an assembly, but does not detail installed valvetrain parts, a relevant boundary for planning.

Listed on Amazon as: 2x Cylinder Head Assembly Replacement for Chevy SBC 350 327 383 Camaro Z06

#10

10. GELUOXI 129006601 Assembly

• Package Dimensions: 22 x 13.5 x 11 in
• Weight: 52.9 lb

Best for: 190cc SBC replacement pair.

Why it ranks #10: This aluminum assembly pair lists 190cc runners, 64cc chambers, and 2.020/1.600-inch valves for SBC 327, 350, and 383 fitment.

GELUOXI supplies two aluminum cylinder head assemblies with 190cc intake runners and 64cc chambers for listed SBC 350, 327, and 383 replacements. The stated 2.020-inch intake and 1.600-inch exhaust valve diameters add concrete configuration details, with Corvette, Camaro, and Z06 named among compatible applications.

The two-piece package can cover both heads in a replacement project, avoiding a separate search for a matching second assembly. The 190cc runner volume and 64cc chamber help builders compare the configuration against their engine requirements. Stated valve diameters give additional sizing information, and the natural-finish aluminum construction identifies the material. The listing points to SBC 350, 327, and 383 applications, but does not specify whether springs are included or installed, leaving a detail for parts planning.

Skip it if you need spring inclusion confirmed by the listing; these supplied specifications do not state whether springs come with the heads.

A builder replacing both heads on a listed SBC 350, 327, or 383 can compare the valve sizes and 190cc/64cc figures with the build requirements. Plan separately around the unspecified spring inclusion.

Listed on Amazon as: 2Pcs Cylinder Head Assembly Aluminum Replacement for Chevy SBC 350/327/383