Yella Terra Holden 6 Blue/Black 12-Port Alloy Cylinder Head — 72cc Assembled — ACHA 33C72
$3,650.00
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Yella Terra Holden 6 Blue/Black 12-Port Alloy Cylinder Head — 72cc Assembled — ACHA 33C72
$3,650.00
ACHA 33C72 is Yella Terra’s assembled large-chamber alloy 12-port cylinder head for compatible Holden Blue/Black straight-six applications requiring a lower-compression chamber arrangement.
Assembled 72 cc specification
- 72 cc combustion chambers.
- 12-port Holden inline-six architecture.
- Heat-treated 356-T6 aluminium casting.
- Supplied assembled.
- Revised port and chamber design derived from Yella Terra’s performance alloy-head program.
Engine combination: The final compression ratio depends on bore, stroke, piston crown/deck height and gasket volume. Verify the complete combination before assembly.
Supplier
Yella Terra
Product System
- Engine Parts
Supplier Part Number
ACHA 33C72
Built by Boost & Tune Support
BBT can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.