LS1 cast iron or Alum.

[beertestr]

i had read in the LS1 books it was 90#

I measured my LMG block (5.3L Iron) and my LS2 block, which is identical to an L76 block. Got 104#.

I don't have a GenIII iron block (96 or 99mm bore) to measure compared the the LS1block I have, but I'll see what I have in the archives..

Now,

[beertestr]

i had read in the LS1 books it was 90#

I measured my LMG block (5.3L Iron) and my LS2 block, which is identical to an L76 block. Got 104#.

I don't have a GenIII iron block (96 or 99mm bore) to measure compared the the LS1block I have, but I'll see what I have in the archives..