chevyguy20

My dad and i recently purchased a 52 1/2 ton chevy pickup to restore. i cam up with idea to put a stroked 6L instead of a big block in order to have something differant. I am unsure of where to get the rotating assembly and how many cubes it will go. Any experience or help is appreciated

TurboBerserker

iTrader: (1)

6.0L will go to 6.7L (408ci) easily and can go higher with special attention.

6.0->6.7 = 6.125" connecting rods, 4" stroke crank, 4.030" bore (30 over)

1slowZ71 put in a 4.1" stroke crank and went to 418. I think his bore is the same.
Benkey is at 410 (412?)ci with 60 over and the same crank and rods.

With more money, you can do a 427 out of a c5r block.

chevyguy20

ya i just read the whole 1slow01Z71 post and all of his problems with the crank and clearence issues. is it worth doing the 418 and what kind of hp and tq # could i expect properly cammed and tuned

TurboBerserker

iTrader: (1)

NA? high 400s low 500s, I think, depending on all the standard variables.

I wouldn't go through what 1slow did. He may have a different perspective, but I'd do a 408 and a power adder if you still want more. I don't think 10 extra cubes are worth what he had to do, but now that he's got it done and you have a guide book of sorts, it might be easier.

screamingjimmy

Hi, I also have a 51 Chev 1/2 ton step-side with the wrap around windows. I have been considering my options for awhile, I will most likely go to either a Big-Block or Small-Block. My honest opinion: putting a GenIII into an old truck is costly and time consuming. You can get away FAR cheaper going carbed.

But it would be awesome having a one-of-a-kind like that.

Different Strokes for Different Folks!

chevyguy20

I will agree with you in the fact that it would be more costly to put a gen III into the truck considering we have a 2 big block blocks sitting in our shop along with a few small blocks. The point is to be differant and creative no one gets better by doing the same as everyone else