I have a 3.5 long block, just coming out of rebuild @ the machine shop.tradin1 said:i remember readin somewhere that they could b found at or around 1k. did a search, no luck. blown head gaskets i think, just explorin my options
Waterpumps are not the differences between the blocks. Waterpump differences are due to the configuration of the timing covers.PTSchram said:First off, I think Mike might have it backward as there is very little difference between a B suffix 3.9 and a 4.0. Everything should be interchangeable except the main caps. The suffix A engines were more similar to the 3.5 than the 4.0. The suffix B engines were manufactured after June 15, 1995 and incorporate the ten bolt head style, versus the 14 bolt heads. Also, the water pumps are different between the two suffixes (suffices?). Mike, remember our discussions on water pumps? Yours from the 4.2 was completely different from those from my B suffix 3.9.
Supposedly, replacement shortblocks can be had from of all places, the dealer for $1200.