I've recently adopted yet another neglected SSEi.
Unfortunately the coroner had bad news after the
autopsy on the engine. Two rods and crank damaged
beyond repair.

I'm about to assume the task of locating a suitable
used replacement engine as the technician doing the
work has yet to do so in over 3 weeks.

It'* a 92' SSEi, engine vin code 1.

I want to keep this project as cost effective as
possible for now as I've never driven this car
and I'm unfamiliar with it'* history.

What are my options?

Is a 92-94 3800 non-supercharged engine a possible
candidate?

I guess what I'm asking here what are the differences
internally between supercharged & non-supercharged
3800 engines if any?

TIA

If you want to go with NA you would have to get all the wiring and Computer.

I'll assume that NA means "normally aspirated".
This is not what I'm looking to do. I want to
keep it supercharged.

Yes, there are differences. I believe that the injectors are in different places on the two engines. Also the */C engine is built to take the extra pressure, with stronger internal parts.

Yes I'm well aware that there would be obvious
external differences between the two. I did
ask "what are the differences internally between
supercharged & non-supercharged" engines.

I can't see GM casting two different blocks
for a supercharged engine option that produces
a mere 25-50 more ponies. However I can see the
possibility for enhanced heads, cam, oil pump,
pistons (compression ratio?), timing chain and
the likes. But who knows?

I may have an opportunity to purchase a low milage
93 SE L27 3800 at an excellent price. Having the
complete original but damaged L67 92 SSEi supercharged
engine I was hoping to combine the two to produce a
*satisfactory* replacement engine for the time being.

I'm looking for possible options here as there has
been some difficultly locating a good used L67 3800
replacement engine here locally. A feasibility study
if you will. <g>

With this in mind, does anyone know exactly what the
internal differences are between the L27 & L67 engines?


TIA

Although not completely specific, try this:

http://www.bonnevilleclub.com/techinfo/?article=43

After doing some extensive research I've come to
the conclusion that there are only three common internal
parts shared between the 92'-95' L27 Normally Aspirated
and the L67 Supercharged engines.

Block, Crank & Cam shafts.

Thanks to all those who replied.

SSEiMamba-

Just don't forget that the 92/93 SC 3800 & 94/95 3800 SC engines have different SC'* & TB'* too. I would stick with the SC'd version if you already have the SC engine as a core. Due to the fact the bottom end needs an overhaul, you could just do the bottom end as need be & leave the rest for now too.

Unfortunately the crank shaft and two rods are beyond repair. ;-(

Well a crankshaft & a couple of Rods with 6 new pistons & reboring job is still cheaper than a new engine! Just something to think about.