Anyone running a Summit Iron LS Block?
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From: South OKC/ Moore, OKlahoma
Anyone running a Summit Iron LS Block? Anyone used the summit Iron LS blocks? Thinking about getting one for an "iron ls1" turbo build. Done a little searching and most reviews seem positive. Have seen several reviews that said it showed up a little rusty, though. 
Anyone ran these? Any extra machining needed before assembly?
Anyone ran these? Any extra machining needed before assembly?
Anyone used the summit Iron LS blocks? Thinking about getting one for an "iron ls1" turbo build. Done a little searching and most reviews seem positive. Have seen several reviews that said it showed up a little rusty, though.
Anyone ran these? Any extra machining needed before assembly?
Anyone ran these? Any extra machining needed before assembly?
There's been a few posts over the years that these blocks are often out of spec. Low bid machine shop/supplier I'm sure.
If you go with one from Summit, have a shop check it's measurements.
If you go with one from Summit, have a shop check it's measurements.
I bought the 6.0 Ltr blocks that they sold several years back, supplied by ATK.
I had to get the cylinders honed to size With torque plate. They were too tight.
New cam bearings installed.
Once I started assembly, I found the #3 main cap to be off center a bit. It took some massaging of the cap and bearing in order to get the clearance within spec.
The 408's running now and no issues so far. But it took a little bit of money to get it right.
I had to get the cylinders honed to size With torque plate. They were too tight.
New cam bearings installed.
Once I started assembly, I found the #3 main cap to be off center a bit. It took some massaging of the cap and bearing in order to get the clearance within spec.
The 408's running now and no issues so far. But it took a little bit of money to get it right.
