Been at this old Express van again. Swapped a 5.13 re-geared 10.5" full floating 14-bolt under it. 1 ton springs. 1 ton front control arms and knuckles up front. All the 1-ton brake parts. Pulled the L31 out of it. Sitting on the stand now. Built a set of 205cc Assault Racing aluminum heads for the future 396 small block. Currently putting those heads on a stock bottem end 5.7. Adding 1.7 roller rockers on them. Should be in the 440 hp range when I am done. Need to get a picture of it now that the suspension is all 1-ton but I have one as a bit of a 1500/3500 hybrid, lol.
I ended up with the 205cc heads because my 60cc milled Etec170s ended up on the 305 in the Tahoe after finding a crack in one of the heads on it. Got that engine running great again (around 330 hp/350tq) and smoked the 130k mile 4L60E within a few weeks. Work on modified stuff never seems to stop.
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