The bore and stroke in the RB25 block is 86mm × 71.7mm, and it absolutely was based upon the outgoing RB20 block. The pistons and rods were being also derived with the RB20 but ended up more powerful and larger. Connected:rb26dett enginerb25detrb26dett partsrb25det neorb26dett r332jzgterb25det engine2jz gte1jzgte engine2jz2jz enginerb25 Request https://joschkay445lki4.buscawiki.com/user