Are there any performance aftermarket sleeves ??

[XR8tt]

For the 1UZ..
These guys don't have any off the shelf..

We do not have sleeves for the 1UZ block. We can custom make some sleeves for you but you would need to supply us with the specs of what you need. Once we have the specs we can give you a production time and cost.Let me know if you have any more questions.[/font]
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[/font]
'Tahoma','sans-serif']Darton International, Inc.
John Catapang
National Sales Manager
[email protected]
2380 Camino Vida Roble Bldg. K
Carlsbad, CA. 92011
tel: 800-713-2786 file:[/COLOR][/URL]
tel2:[URL="http://www.plaxo.com/click_to_call?lang=en&src=jj_signature&To=760%2D603%2D9895&[email protected]"][COLOR=#000040]760-603-9895 [/COLOR][COLOR=#000040][IMG]file:[/COLOR][/URL]
760-603-9629
[URL="http://www.dartonsleeves.com/"][COLOR=#000040]www.dartonsleeves.com[/COLOR][/URL] [/font][/COLOR][/B]

 

[Zuffen]

The problem I see with sleeving the block is you're still stuck with the restrictive heads,

Adding a litre or more in capacity just makes the restive heads worse.

 

[XR8tt]

Heads & flow is not an issue .. I can boost heaps..
My concern is the strength of the std sleeves plus .020 ..

 

[rms]

One off 4340 cr/mo sleeves would negate the concern and lighten the wallet !

The main problem would be a lack of support from the surrounding structure.

 

[ed_ma61]

Heads & flow is not an issue .. I can boost heaps..

boost is not an answer for poor flow capability. there is no difference between FI and NA in flow character

 

[stevechumo]

You could have the engine girdle to help stabilizing the block, if you don't have the sleeves. I don't think the 1UZ really needs the sleeve unless you'll go crazy with the hp. Usually the Honda guys go with the sleeves because their blocks are "floating" cylinders.

 

[XR8tt]

Yes I'm going crazy.. Its NOT a daily driver...
1/4 mile at a time.. Seems sleeves used are generic...

 

[stevechumo]

Yes I'm going crazy.. Its NOT a daily driver...
1/4 mile at a time.. Seems sleeves used are generic...

Sounds like a monster motor. :sgrin:

 

[XR8tt]

boost is not an answer for poor flow capability. there is no difference between FI and NA in flow character

CNC'd heads are enough with 100 CFM more than std..
Btw...I didn't say there was poor head flow..