|
Uh, no. A B23F uses LH2.0 with either a 503 or a 510 computer. A B230F in a 1985 240 uses a 511 computer and, according to Abe Crombie, runs better than a 1986 B230F with a 544 computer. WRT gas mileage, our old '84 GL wagon got 27-29 mpg with the M46 and a 3.73 rear end (was automatic, until the conversion was done by me in '98), and the '85 usually gets the same amount as the '84 did. Never really noticed a performance increase, except that the '84 did accelerate a little quicker, due to the shorter rear end. So, my experience has been that the B23F is essentially the same engine, except that it is a little noisier under acceleration, and is a much stronger engine, so it lasts longer.
-J
|