186 red motor

Hi, i found some markings on the back of my 186p block, just wondering if it's the builders marking or something else? It's (R 1 5 Y ) Any info would be much appreciated

I brought a 186p motor on the weekend and when pulling it down i discovered the head was worked and possibly a YT, but it had no markings on the valves etc. It did have 5 fish stamped on the back of it tho which had me baffled and after 48hrs of research and people giving me **** on Facebook i...

Hi i have a 1982 VH commy 4 speed with A 1.9cc 4 cyl starfire motor. I have been told this is like a 6 cyl but only has 2 cyls cut off diffant from the opel one. so would it be like a 6 cyl flywheel/drive plate set up anyway?. or there maybe a 10mm diff between the 4 cyl and 6 cyl sometimes...