: engine swap



soleman10
06-10-13, 02:15 PM
Looking ahead I've been talking to several mechanics about swapping out my 5.7l engine in my 1991 cadillac brougham hearse. I'd like something a little more aggressive, but I don't plan on street racing it. Any suggestions as to what I might go for?
Thanks in advance

cadillac kevin
06-10-13, 02:52 PM
Looking ahead I've been talking to several mechanics about swapping out my 5.7l engine in my 1991 cadillac brougham hearse. I'd like something a little more aggressive, but I don't plan on street racing it. Any suggestions as to what I might go for?
Thanks in advance

I'd suggest a built 350, a vortec 454, olds 455, or pre '73 caddy 472/ 500. All of these would require upgrading your transmission and possibly the rear end.

ferrisworld
06-11-13, 02:54 PM
I'd go for one of the newer LS series engines. Maybe get the 6.2 from the current Escalade or something.

cadillac kevin
06-11-13, 03:31 PM
I'd go for one of the newer LS series engines. Maybe get the 6.2 from the current Escalade or something.

That would be cool, but they are not a direct bolt in (as far as I know)

Cadillacboy
06-11-13, 06:08 PM
I had a chance of owning Escalade Vortec 6.0 engine and that was a beast , it rolled off the line like streak despite 2.5 tons lol . Still, for some reason I love LT1 over it

Vladillac Khrougham
06-14-13, 11:59 AM
Will a Cadillac 500 cid engine bolt in to a late model Brougham?

csbuckn
06-14-13, 12:03 PM
Not a direct bolt in but I put one in a 90 brougham.

cadillac kevin
06-14-13, 12:13 PM
Not a direct bolt in but I put one in a 90 brougham.

I'd imagine if you got the mounts and proper shroud/ trans xmember/ misc from a 77-81 caddy powered RWD, it would be fairly straightforward.
(Granted, putting a chevy 350 in my 86 wasn't exactly plug and play either- had to do some GM parts bin scrounging as some parts from the 90-92 wouldn't work)

Vladillac Khrougham
06-14-13, 12:24 PM
(Granted, putting a chevy 350 in my 86 wasn't exactly plug and play either

I often wonder if it's worth the effort to bore out my 305 to a 350. I guess I will cross that bridge if/when other major engine work is becomes necessary. Already have 175K over 170K of which were put on by a previous owner.

ferrisworld
06-16-13, 09:01 PM
There are kits to bolt LS series engines right in. They're mainly intended for the 94-96 Impala crowd, but should work with any B, C, or D body from 77 - 96.

cadillac kevin
06-16-13, 09:48 PM
There are kits to bolt LS series engines right in. They're mainly intended for the 94-96 Impala crowd, but should work with any B, C, or D body from 77 - 96.

I thought you had to notch the frame for the alternator or AC compressor or something

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I often wonder if it's worth the effort to bore out my 305 to a 350. I guess I will cross that bridge if/when other major engine work is becomes necessary. Already have 175K over 170K of which were put on by a previous owner.

I'd just swap in a 350 instead of having the 305 bored out. You could reuse the accessories/ brackets, exhaust manifolds and intake (you can reuse the heads too, but I'd get some better ones.) If money allows, I'd rebuild the 350 (or at least refresh it.)

brougham
06-16-13, 11:41 PM
There's lots of performance mods out there for 350s and crate engines to buy. It's cheaper going that route then changing to a different type of engine.

stoveguyy
06-17-13, 12:48 PM
A 305 cannot be bored large enough to fit 350 pistons

ferrisworld
06-23-13, 10:12 PM
A lot of people do notch the frames for the LS engines to clear accessories, but I think there are other ways around it. There may be some factory accessory setups that don't require notching.