Lemonhead wrote:
The block that I have had bored to suit 82mm pistons has had a sleeve put in numbers 1 and 4 cylinders and 2 and 3 bored in original material.

This would work, but I am not happy with the arrangement of the bores, no.'s 1 and 4 have been moved to the front and rear of the block and 2 and 3 closer to the centre a bit. This has not given me the bore spacing/combustion chamber alignment that I wanted for the twin cam head nor a A-series head.

So, what I am doing now hopefully is what I originally wanted and that was a full wet sleeve block, I say hopefully because I have a dummy block at my machinist shop to see if we can do it, he's a 'can do' type of bloke and he can't see why we couldn't do it.

With the type of sleeves we are planning on using we can incorporate a raised ring around the bore (about 1mm high) to act as an O ring type of arrangement, with the sleeve thickness, 82mm is just the beginning of bore sizes, it will be interesting to see what size I can go to, coupled with the 88mm stroke crank I should be able to get some good capacity out of a little ol' 1400 block, 88mm x 85mm is 1997cc

I have recently acquired Feral's A13 raised port race head to intially put on the motor while I keep working on the twin cam, I have literally worn out my huge race head which is currently on rally car.

So if the wet sleeving does work, even with a 82mm stroke crank some good capacity can be achieved and to answer the theme of the thread - yes be perfect for high boost applications.

I will keep you posted.

D - From the other thread, I can build you whatever combination you desire

Marcus - I ran a 79mm n/a motor for a long time with no problems, had the block sonic tested and bored to suit, I like your signature, I guess I'm building honest 200hp n/a A-series motor.