6.9 worth buying?

[FordGuy100]

30mm turbo? Yeah...no.

Nice bumpers though.

 

[SyicoIDI]

http://columbus.craigslist.org/cto/3499975689.html

hey guys my brother found these trucks on craigs list but we're only woried about the ford because chevy isnt worth buying, but the 6.9 sounds like a good deal but we heard the first couple years a bad blocks, so any probs with 6.9's in general? i got a 7.3 idi and never had a 6.9 but thinking bout getting rid of my 7.3 for a 6.9 for myself. any info would be nice

Check the serial numbers on the block

CYLINDER BLOCKS

6.9L IDI 1983-1987
Starting at the beginning, the 6.9L IDI engine was introduced in 1983 with the first series block (c/n 1805440C1). This is considered by most as not a viable block casting for rebuilding. It is easily recognized by the lightweight or narrow gusseting across the upper area in the front of the block (Figure 1).

In 1984 the second series block (c/n 1807996C1) was introduced. With improved structural integrity, this is considered the block to use for all applications of 6.9L engines. To rapidly identify it, look at the same area in the front of the block (Figure 2) with the wide gusseting. The 6.9L was never turbocharged, therefore you will only require one long block part number for all 6.9L applications.

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[gdhillon]

Interesting, thanks for the info guys