The 240Z were around 2355+ lbs and started putting on weight from there.
I’ve seen people state that the SBC (iron block) weighs less than a car with an L series. And while looking for a site to quote I found one that says it weighs more. So throw that out the window…
One FAQ concerns the added weight of placing a V8 into the Z. The weight increase is marginal (160 lbs more) with a slight shift of center-of-gravity to the rear, (for the set-back design)
Although I have never seen any info on changing track and suspension goeomety I have seen fender flares filled up, most likely through wide wheels and tires…
ls1
simple swap, tons of info on it and it makes as much power (maybe more) as the rb25 n/a
t56 6spd trans, mounts would not be difficult, headers that clear the steering shaft would probably be the only issue, and theres a company that makes the headers for Z cars i belive.
I wouldn’t want to deal with the hassle of a JDM-only engine from a “don’t know what you are buying” standpoint and for the cost and availablity of upgrades. Bang for the buck, you can’t beat a domestic V8, IMO.
Do this swap, then all we need is somebody with an LS1-swapped Supra to have the big-three of Japan all properly swapped and bastardized.