XUD top/bottom end swaps

[the milkman]

ok from what i can tell and seen so far there shouldnt be to much of a problem with this but just to ask anyone see a problem with using a XUD7 bottom end i.e crank ect and then using an XUD9 block and pistons? of course theres gonna be some difference in ratios but other than that?


thanks ash

[Ruan]

Theoretically there's no difference, the stroke is the same on an XUD7 as an XUD9, just the bore thats different... So basically the 9 block and pistons have to go together, I don't think you can use an xud9 head on an xud7 as the valves might not clear but don't quote me on that... Everything else is interchangeable.

[the milkman]

Hmmm thanks ruan. I'll look into it an if I can't find anything about the valve clearance then I'll just try and hope I don't bend more valves than ed's 6

[puglove]

Im i missing somthing? Is there a point/gain in doing this?

[Ruan]

Valve to piston clearance is fine, its whether they'll touch the edges of the block, I don't think they will...

Have you thought about a DW8 head on an xud7 block, that I bet would work.. Just maybe look at the DW8 valve sizes and see if you can put turbo valves in as they're more heat resistant...

[Piggy]

Im i missing somthing? Is there a point/gain in doing this?

yeah me too...
xud9 lumps are common and cheap?!

[the milkman]

Ah thanks for that ruan big help as usual

[Piggy]

Ruan da man!

[samass]

Ruan da man!

Christ why don't you buy him flowers already

[Piggy]

is rep not enough?!

never know when Ruan is needed...always best to suck up now

[puglove]

Ruan da man!

Christ why don't you buy him flowers already

He's well past that now. He's at the peeping through the wimdow at night stage now. I need not explain that to you sam. You already know what thats all about.

is rep not enough?!

never know when Ruan is needed...always best to suck up now

true