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Hi i am thinking of importing a 93 "bigbody" Fleetwood to Australia. Ive done a little research and want to know the engine difference with 93-96 Fleetwoods. Which one has the better motor and more reliable. Im guessing 93 is carby and 94 is fuel injected. At this stage according to our law 93 is the latest year we can bring in possibly 94.
 

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95 FWB 81SDV 96 FWB 94 Fleetwood
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93 is throttle body fuel injection. The 94-96 is port fuel injection. The 94-96 has much more power and better gas mileage.
 

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Throttle body fuel injection was more of a transistion time till port injection.
The 93 is a modern small block chevy with a rear distributor & 1 piece rear main seal.

The 93 engine resombles what was used in Chevy / GMC trucks with a 350 or 305 from about 87-93.
Maybe the thermostate housing was different from the trucks.

Solid engine. Easy to get anything for from stock to racing. Not too different from earlier small block Cheys.
The 94 was a LT1. The LT1 was port injection, which was a big improvement in power & fuel economy as said.
94-96 also had a different exhaust manifold that looks to be improved for flow.
Some say the 94 -96 head flowed better.
The LT1 changed to reverse flow cooling which was said to allow a higher compression.

Besides that the other noticable diferances was the LT1 went to a different water pump design & mounting.
The only bad about the LT1 is the optispark distributor.
The distributor cap is mounted under the water pump & harmonic balancer. A bad design for easy access. More probe to water & coolent contamination being under the water pump, under hoses, in front of the radiator, & in the bottom front of the engine. Not too many good options for aftermarket distributors when it fails. Think the distributor was slightly different between each year.

The 96 LT1 was the same except was OBD2. The car went from 2 02 sencers to 4. The last 2 just to make shre the catolatic converters & 1st 2 O2 sencers are working.
 

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Discussion Starter #4
Thanks for the replies.
The 93 motor wouldnt have the same digital injection technology as the ht4100 4.1ltr would it? That was removed in the late 80s if im right?
 

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Much better engine. The small block Chevy SMC probibly was GM's longest run (in years) of the same basic engine design.
There may have been better engines. But none were updated & modernized as much as the SMC.
That's really what killed off other V8's. GM or their division did not modernize ther V8's.
They invested more in 4 cyl & V6's.
Chevy & their GMC same needed V8's for the trucks. That's why they were improved.
Having a Chevy V8 in a car only went in sports cars & full size.

It could be called a workhorse. Used in trucks, limos, police cars, & taxis.
 

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02 Escalade | 02 Corvette "Goldilocks" | 03 Blazer 4x4 | 92 Caprice Wagon LS1/T56
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If you're going to import one, I would get a 94-96. The '93 has the old school small block, and it has the older breadbox steering wheel which I personally hate.
 
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