Legendary Volvo Tuning
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Timos Motor machines performance cylinder heads for the Volvo 8V (530 and 531) in three stages. Every head gets ground and polished valves, a 31° backcut on the intake valve, new valve stem seals and surface planing – the difference is how hard the ports and combustion chambers are worked.

  • Stage 1 Street Turbo – ported intake and exhaust ports, 44/35 mm valves. Head core and VX3 camshaft included.
  • Stage 2 – everything in Stage 1 with heavy porting and machined combustion chambers. For street turbo or naturally aspirated engines.
  • Stage 3 Race – race-ported ports and combustion chambers, machined 44/35 mm valves. Dyno-tested at 190 whp on a B230 and 498 whp in a turbo build (FastWorx).

The price is based on you sending in your own head as an exchange, preferably a 530 or 531. All heads are ordered by enquiry – tell us how the engine will be used.

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Performance cylinder heads for Volvo – FAQ

Which stage should I choose?

Stage 1 Street Turbo is the base for street and turbo cars. Stage 2 focuses more on porting and suits both street turbo and naturally aspirated engines. Stage 3 Race is maximum work on ports and combustion chambers for competition. Tell us how the engine will be used when you send an enquiry.

Do I have to send in my cylinder head?

The price of Stage 2 and Stage 3 is based on you sending in your head as an exchange. Stage 1 includes a head core. We prefer a 530 or 531 – avoid the 1000160 and older 530 with large 9/27 water passages.

What is included in the work?

Valves are ground and polished with a 31° backcut on the intake valve, valve stem seals and the packbox are replaced, the valve seats are checked and the valves lapped in, and the head is vacuum tested. Surface planing is included.

Do the heads suit both naturally aspirated and turbo engines?

Yes. Stage 2 and Stage 3 suit both turbo and NA engines, and Stage 1 is built for street turbo. Stage 1 can also be used on an NA engine, but the head should then be planed further.

How do I send in the head?

You receive a shipping label by email. On Stage 3 the DHL return shipping costs SEK 240 each way (max 20 kg, send without the valve cover). Pack the head securely and tape it well.