non Mini (but BMC) query
Posted: Mon Sep 08, 2014 2:29 pm
Apologies for a non Mini technical query, but does anyone know what cc a +90 bore on the BMC B Series from an MGB would be? Obviously standard bore for an MGB is 1798cc, with mine having a 1950cc unit.
I've stripped the engine for a rebuild and there were no markings in the pistons. After taking it to the engineering firm to get new piston rings, they noted that they were +90 Powermax pistons for a Ford that have been machined to fit the B Series. Supposedly the engine is an Oselli conversion but they can't tell me for certain that it is, except that they reckon that everything done to my car sounds very like it is one of their early conversion.
I've stripped the engine for a rebuild and there were no markings in the pistons. After taking it to the engineering firm to get new piston rings, they noted that they were +90 Powermax pistons for a Ford that have been machined to fit the B Series. Supposedly the engine is an Oselli conversion but they can't tell me for certain that it is, except that they reckon that everything done to my car sounds very like it is one of their early conversion.