Is there any source out there regarding the differences in model year LT-1s from the Fbody vs b body's? outside of the typical, distributor, maf fuel rail, cast iron heads?

 

Yep. It's called "search"

 

93 had non vented opti-spark...where as in 95 they changed to vented-opti spark.
93 speed density...94 and up...MAS air
93...sequential fuel injection...94 and up had multi-port fuel injection
93 had 19lbs injectors...and 94 and up had 24 lbs injectors...
the impalas, caprices and roadmaster had iron heads

 

yea, I know all that as above, I was referring to things like the front cover, accesory drives ect?

 

The shortblocks are the same given similar year 94s both b-body and f-body are likely to have "pink" rods. The b-bodies ALL got the vented opti setup even the 94s, the cam was a little milder and the iron heads outflow MOST of the aluminums. The power difference can probably be attributed more to the 87 octane tuning and grandpa quiet intake and exhaust on the b-body than the cam.

 

Try this article from some added info:

http://www.automotiverebuilder.com/ar/ar99928.htm

That was just plain nasty.

 

I looked at the timing for a Caprice, and I couldn't believe how retarded (as in opposite of advance ) it was. It was like 8-9* in spots. I bet it really wakes the car up to get a custom tune.

 

sry, i didnt fully read your post

 

Yeah a good tune makes a world of difference. Consider though too the heads are different and even given the same cam may want different timing than the f-body got.

 

arent the water pumps different to

 

The crank snout is different too...different lengths...
And yes the water pumps are different

 

The WP differences are heater circuit related.