Stage 1 Marine Aq 145 AQ 151 Cylinder head 44x35mm valves Volvo 8v 530 531

Step 1 marine. This includes a Simpler porting (blueprinting) the obvious errors are improved in both intake and exhaust duct and combustion chamber.
There is more focus on renovation than porting of the intake and exhaust ducts, but the flow in the intake and exhaust ducts improves considerably.
Valves 44x35mm std.
All of our Timo cylinder heads can be used for NA (aspirated engines) and turbos. Write on the others, what you will use it for.

Included: Valves grinded and polished, 31 degree backcut on intake valve. Replacement of valve seals/damper rubbers, chamshaft sealing, control of velve guides. (additional if they are bad)
Valve seats are checked and grinded. Vacuum test is performed. (tight valves) Check valve play, as well as alignment up to 0.50mm included.
Trimming of camshaft only Volvo original profiles included with standard base circle of 36mm. (send with/fit the camshaft you want to use)

Of course, you can choose our own camshaft profiles, then camshaft, lash caps and skimming are added.
If you want stronger valve springs, single or double, you can choose this as well.

This product is based on a trade-in price, provided you send your own cylinder head. Cylinder heads are sent in reasonably clean.
We will email you a delivery note if you choose to send your cylinder head, the price one-way SEK 240 (DHL return shipping max 20kg) (sweden only (EU customers, please contact on e-mail for your country and price)
This means that the cylinder head is sent in without a valve cover, otherwise it weighs over 20KG.

Send cylinder head. Do this, put an extra cardboard in the bottom, wrap around the cardboard, put everything in a box and cut down so the cardboard fits tightly around the top lid and tape, preferably a little extra.
You choose which frame you send to us for processing, the most common are 530 and 531, however, we recommend not using 1000160 or any older 530 top cover with the large water channels 9/27.
If you are missing a cylinder head frame, we charge SEK 1,000 for a 530 cylinder head, SEK 3,500 for a 531 frame. As we ourselves have to spend time buying/shipping cylinder head frames.
Cylinder head frames with broken bolts are common and we have a lot of practice in fixing that. (To be added)
If you choose to leave your cylinder head as a replacement, check that there are no cracks between the valve seats (common) and between the pin hole and the seat.

Please contact us if you have any questions.