Just a B30F shoved in there. I've still got a footwell and stock firewall although a 164 transmission tunnel is stitched in there. It was as if Volvo designed the 1800 for that engine. Almost
And although it is just a 6 cylinder, I always wanted to weld two 4 banger red block 4 valve heads together to build the ultimate Volvo for the early 1970s. as it should have been.