how different are the 2.8l block and 3100 block besides the amount of liters they have, I mean as far as cam compatibility, pushrod the works cause i was thinkin about going with this http://www.milzymotorsports.com/miva...de=3x00stg2pkg

 

not much different but I would think twice before going there,

...
Ok this is what your going to buy right(because I copied this from that site thats selling it or advertising it)
...

...
1-26-06 MMS Stage 2 NA 3100 sets a new dyno record
Blair Henze's 1998 Lumina LS 3100 made 183.7 hp and 178.7 ft-lbs at the wheels. His setup included MMS Stage 2 3100 heads (original casting 1998 3100 heads), MMS Stage 2 cam, MMS pcm, cai, stock exhaust manifolds, and custom 2.5" exhaust. This record still stands today.

for this price - Price:$2,649.99


.....ya I would seriously and madly think twice about that or better yet buy a V8(which people here would say) or for that much of a price your better off putting turbos lol.

What I'm trying to get at is that I dont think you should go that route. Theres people in your area or near that can upgrade your engine and still push more than 183 hp for a lower price....

My 2 cents and some....
Good luck and keep me up-to-date
Entrig00

 

a junkyard small block with cam and headers will surprise you.