Another +1 for Volvo Parts Webstore USA
+1 for myvolvosource.com/ (on eBay as taillightguy)
USA - P1800 / Amazon / PV544 parts
Other places for goodies (
although I haven't purchased from them as yet)
MDS http://www.motordesign.se SWE - some very exciting stuff there, including their own 'EVO' Redblock heads, R blocks, and rods. (While dreaming is cheap, these parts are not - but one can expect rapid car movement with them to last longer than rapid eye movement about them).
KL Racing SWE - wide range of performance parts for 120s to present (note: website in Swedish)
Kimmitt Sport Racing NOR - performance parts for B230 and B234, including an improved B234 plenum (note: website in Norwegian and English; prices in
Norwegian krone)
Yoshifab USA - lots of handy prefabricated alloy and Volvo performance bits, including those engine mount adapters to make a B20 to B230 engine swap easier.
Building Xoe (the 142) promises to be interesting.