Will the P9 heads bolt directly onto an A8/R4 block ? Or should I say could I remove my P5 heads and bolt on the P9 heads? What are the valve angles and flow numbers of the P9? There's not a lot of info on them.
Different bore spacing Marty, plus the bolt pattern is most likely different
$1995 blocks just isn't going to happen, the return on investment just isn't going to be there. It's all good and well saying they will sell, you're not the one kicking in the $200K and 1-2 years doing it. If you're that confident, mortgage your house and do it.
