boring my B16a1

[MikeBergy]

Originally posted by B16@Aug 5 2004, 04:55 PM
for some reason i thought the B20 had different sleeves. so you can bore out any B block to 84mm on stock sleeves and it will be just like the sleeves in the B20??

No. The walls on a b18 and a b20 have the same thickness, so if you bore out the ls block from 81 to 84mm, you will have walls that are 1.5mm thinner than a comparable b20 block.

 

[97CTR]

Yes thank you, someone esle to back me up. The design in where each cylinder "touches" in the b20 is also a different design than a b16.

 

[B16]

Originally posted by MikeBergy+Aug 5 2004, 04:39 PM-->

B16

@Aug 5 2004, 04:55 PM
for some reason i thought the B20 had different sleeves.  so you can bore out any B block to 84mm on stock sleeves and it will be just like the sleeves in the B20??

No. The walls on a b18 and a b20 have the same thickness, so if you bore out the ls block from 81 to 84mm, you will have walls that are 1.5mm thinner than a comparable b20 block.

[post=373162]Quoted post[/post]​

that is what i thought...

 

[khai_tuan_nguyen]

To answer your question you would need to bore the engine out 3mm (from 81mm to 84mm) to make ~1.8L. I don't think that the stock sleeves can take that much overbore.

This is what i don't get? I thought any b series block that are bored to 84 mm (CRV spec) taht would make it a 2.0 liter.

 

[B16]

To answer your question you would need to bore the engine out 3mm (from 81mm to 84mm) to make ~1.8L. I don't think that the stock sleeves can take that much overbore.

This is what i don't get? I thought any b series block that are bored to 84 mm (CRV spec) taht would make it a 2.0 liter.

[post=373508]Quoted post[/post]​

it is Bore x Stroke.
the B16 has a shorter stroke than the gsr/ls/b20. gsr even has a slightly shorter stroke than the ls/b20, but still longer than the B16's stroke.

 

[khai_tuan_nguyen]

Ok that is what I thought, so what is the liter size of a b16 head with b20 bottom vs gsr head and b20 bottom.

Khai

 

[brc80]

Originally posted by B16+Aug 4 2004, 05:20 PM-->

khai_tuan_nguyen

@Aug 4 2004, 04:33 PM
I thought 84mm is 2.0 like the crv? I guess the stroke is different. So what is the Liter size of an actual b20 with b16 head?

[post=372690]Quoted post[/post]​

uhh... 2.0L the head has no effect in the displacement of a motor. its only bore and stroke.

[post=372713]Quoted post[/post]​

See above.

 

[MikeBergy]

Originally posted by 97CTR@Aug 6 2004, 02:51 AM
Yes thank you, someone esle to back me up. The design in where each cylinder "touches" in the b20 is also a different design than a b16.

[post=373283]Quoted post[/post]​

The cylinders in all of the b series blocks are touching. The b16 is the same, and so are all the b18 blocks, and the b17 too. all the cylinders are touching.

 

[97CTR]

yes i know they all touch, there is just less material between the cylinders in a b20 making it a weak point.