30th Oct 2013, 00:07

It's true that the Chevrolet V8s are much quicker off the line than the Oldsmobile 307s. However, the 307 is the most durable and reliable engine I've come across.

13th Sep 2014, 05:32

I personally prefer the 5.0L versions of the Brougham much more. The 5.7L versions had their suspensions jacked up and were really geared for towing. They ride kind of high and a little harsher, as it uses the police-duty suspension package borrowed from the Caprice, being that the regular suspension would probably give out under heavy towing conditions. The 5.0L versions continue to use the traditional soft suspension that was more for the average Cadillac buyer. Sure the 5.7L is faster, but that's it.

13th Sep 2014, 13:18

Regarding the 305 vs 307 debate, while I've never owned a Brougham, I've had many Delta 88s with the 307 and many Caprices with the 305. However, my Delta 88s were all 1981-1984 era cars, so they had a different sort of 307 than the one in '85 and later cars (including the Broughams). The early 80s 307 was quite reasonably powerful - anyway adequate - due to different heads or something. I wonder does anyone know if it is easy to swap out older 307s or even 305s for weaker 307 found in late 80s Broughams? I would assume there are still a lot of those engines available at quite a cheap price.