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Aluminum Cylinder Head Specification Example for Racing Teams: Racing Spec

Source:Auto Oil Separator / Time:2026-09-18

Aluminum Cylinder Head Specification Example for Racing Teams: Racing Spec

This is a worked specification for aluminum cylinder head in a racing spec programme. It is the document we would send a buyer who asks what exactly they are getting: the material, the dimensions that are actually controlled, the finish, and the checks that happen before anything is packed.

The racing spec version exists because the duty cycle on racing teams is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually premature wear on the first batch.

Aluminum Cylinder Head

Example specification

ItemAluminum Cylinder Head
ApplicationRacing Teams
VersionRacing Spec
Base materialNeoprene
Controlled dimensions5 key dimensions, recorded per lot
Tolerance band±0.05 mm
Finishanodised
MOQ500 pieces per specification
Sampling14 working days, 5 days per revision
ComplianceCCC

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Neoprene, in this example.
  3. List the dimensions that are actually controlled and the tolerance on each.
  4. Name the finish and what it has to survive.
  5. State the inspection level and who pays when a lot fails.

Aluminum Cylinder Head example

Processes involved

  • electroplating
  • die casting
  • powder coating
  • heat treatment
  • cold forging
  • injection moulding

Where this example applies

Programmes that run racing spec most often specify this build for racing teams. Related applications include utility trailers, passenger cars, export programmes, delivery vans, workshop replacements.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 4.0 sampling on the finished lot.
  • Finish inspection under agreed lighting.
  • Carton drop test on the first lot of a new packing specification.

Questions buyers ask

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the CCC-compliant build instead of a fresh interpretation.

Can you match an existing sample?

Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.

What happens if a lot fails inspection?

The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.

How long does sampling take?

Samples leave the factory in 14 working days, and each revision round adds about 5 days once you have seen the first piece.

Ask for the current catalogue and the specification sheet for this line.

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