2016Husky

Hey guys,

So I dropped off an LM7 block with a local builder a while back and my number is finally up. Ideally I wanted to bore it out and stroke it to a 383 but the block’s walls don’t look like they’ll take it much past 40 overbore.

TLDR, the builder is trying to recommend that I use the 4.00” stroke but only bore the block 30 over. That seems a little wonky to me, considering not many people (or Chevrolet performance) run a 3.830 bore 4.000 stroke.

Is this actually a good recommendation or should I just spend a little more money and go pick up a new 6.0 block from Chevrolet and be done with it?

-Cole

Jays_SSZ28

iTrader: (2)

OR you could buy a complete low mileage LQ9 or better that might need a hone, rings, bearings (or not) for not much more than only a new 6.0 block.

Summitracing

We're doing a project with Matt Happel at Sloppy Mechanics that is very similar. Boosted 363 Cube deal with .005 overs with a L33 block. To go .030 over (365 Cid.) with a 4" crank and maintain higher compression, you may want to look at a SUM-R24408105 rotating kit. We have a lower compression version as well for boost.

Darth_V8r

iTrader: (4)

I think you will spend more money vs just getting a 6.0

Tuskyz28

Cole, you ever considered going with a 3.900 stroke?

00pooterSS

iTrader: (40)

Bore the 6.0 and do a 4" stroke

Go big!

(I'm all for recommending the spending of your money lol)


Edit: sounds odd it'll only take .040, I thought it was common to take a lm7 out to 3.9" bore without issue

WE TODD DID

iTrader: (2)

You can make it work. What are your goals?