New LS2 Block
New LS2 Block I'm considering buying a new LS2 block for my build. I know they say these blocks are finished bores. Has anyone actually purchased one and checked? Are they ready to run, or have some seen they need a .005 hone to make them correct?
I had thought of starting with a new LS3 block, but from some research the liners are not centered, causing issues if a bore is needed later.
I had thought of starting with a new LS3 block, but from some research the liners are not centered, causing issues if a bore is needed later.
I talked to one machine shop who said they put torque plates on them and did a final hone. Yes you should check everything on any block, no matter who you pick it up from. No they were not ready to just slap a rotating assembly in but it seemed very little machine worked was usually required. I would like to hear more from the more experienced in here and have been watching this since you first posted it.
I figured the block would need to be final honed, but wondered if an over size piston would be required. I'd like to hear from more engine builders/machinists. KCS?
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I have yet to see a ready to run block straight out of the crate. At a minimum, a final hone is usually needed. For just a quick stockish type rebuild, you can bump the hone through without a torque plate and use a stock size piston. If you use a torque plate, they usually need more material removed which requires an oversized piston.
More machining could be needed depending on how you want it set up. The deck may need to be surfaced to get the piston in or out of the hole however far you want. The mains may need to be honed if you want to add ARP studs. The bottom of the cylinder may need to be clearanced for stroke, etc.
More machining could be needed depending on how you want it set up. The deck may need to be surfaced to get the piston in or out of the hole however far you want. The mains may need to be honed if you want to add ARP studs. The bottom of the cylinder may need to be clearanced for stroke, etc.
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