Originally Posted by nevrenufhp
What about the 4Bd1t or 2t from an older NPR Isuzu? They had decent power, but not really supported by the aftermarket for wild hp numbers. Finding a VT this early in production may be near impossible, until wrecked ones get to wrecking yards.
I'd really prefer one of the newer 4H series Isuzu motors, and I suspect the 4B series would sound similar (my main complaint about them right now).
I agree it might be difficult, if not impossible to find a VT currently, but it's interesting none the less.
My goals are somewhere around 300-350 HP, and something that'll actually fit in my engine compartment.
So far, engines that I know will fit physically are the 4H series Isuzu's, the VT275, a Cummins 4BT (also too loud/rough for my liking), and a late model GM 6.2 or 6.5L.
The 4BT, and the 6.2/6.5's seem to have pretty good aftermarket support, or at least a good community of people who know the motors well, and can tweak them.
I really like the 4H series Isuzu's, and could look past the sound if I knew I could get decent power out of them, but I can already find more tuning information about any other motor on that list that I can about the Isuzu's.