Y7 Pistons on B7

Jawsiiv · Post by **Jawsiiv** » Sat Jun 06, 2009 3:35 am

Got a B7 block that is smoking bad,(probably piston rings). Are the y7 pistons compatible with the B7 block with no adjustments? I figure the rings on this block I got for free are in better conditions that the one I have. Just don't wanna rebuild the entire block yet (b7), as I am going to do the y7 block turbo in the future.

JustRob · Post by **JustRob** » Sat Jun 06, 2009 3:44 pm

No. That will make your motor's compression ratio 7.90:1. Which is less then ideal.

Waffles · Post by **Waffles** » Sat Jun 06, 2009 3:47 pm

Jawsiiv;184111 wrote:Got a B7 block that is smoking bad,(probably piston rings). Are the y7 pistons compatible with the B7 block with no adjustments? I figure the rings on this block I got for free are in better conditions that the one I have. Just don't wanna rebuild the entire block yet (b7), as I am going to do the y7 block turbo in the future.

It will be less work to rering the B7 then it would be to swap y7 pistons even if the compression didnt drop like a mofo with the y7 pistons(as rob pointed out)

Jawsiiv · Post by **Jawsiiv** » Sat Jun 06, 2009 3:52 pm

Thanks for the information....then i have only one choice........new pistons for the b7........ tired looking like Smoke Screen off the transformers...

Any suggestions on pistons, and places to purchase them locally or online?

N2HIFI · Post by **N2HIFI** » Sat Jun 06, 2009 4:20 pm

honda child has some NIB d16 pistons for sale

Jawsiiv · Post by **Jawsiiv** » Sat Jun 06, 2009 4:55 pm

N2HIFI;184157 wrote:honda child has some NIB d16 pistons for sale

They will fit correctly on the D15b7 block? The head is a Z6. Also will any CR change or remain the same? Thanks for the info