ALFAGTV6.COM

darryl longley · Post by **darryl longley** » Wed Dec 07, 2005 10:58 am

Hi everyone i have a 1984 gtv6 completley 100% original but i was wondering after reading all your comments on engine conversions is it possible to put a modern 2.5. 24 valve head from say a 156 ont to a 2.5 alfa engine

Post by **Zamani** » Wed Dec 07, 2005 11:24 am

I doubt it. The pistons are not the same, hence valve pockets are not there for the 4 valves. Not sure about the water jackets, should be similar but maybe there will be enough minor difference to make it not worth while.

junglejustice · Post by **junglejustice** » Wed Dec 07, 2005 11:52 am

You also have the differences in the oil-delivery system... The 12 valve block has a gear-driven shaft that axtends through the right-side head (from the pulley on that head that powers it), down through the block...

The 24 valve 156 block has a chain-driven oil pump (off of the crank) in the sump and no shaft from the head.

It can all be converted (and as Z said - the valve releases need to be cut on the pistons too...), but it is a great deal of work.

2.5 cylinder head