LS1TECH - Camaro and Firebird Forum Discussion

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-   -   Ls6 Block Casting - What's This For? (https://ls1tech.com/forums/generation-iii-internal-engine/1383889-ls6-block-casting-whats.html)

brow318 Feb 9, 2011 09:30 PM

Ls6 Block Casting - What's This For?
 
Hey guys. Can anyone tell me what the square casting blocks are on the side of the block just below the head. One has a threaded hole on the left front side of motor. What is it for? Can these be removed? They look like square casting blocks from when the block was cast.

Thanks...Kevin

http://www.sprint27.com/wp-content/u...ckCastings.png

Fastdriver1992 Feb 9, 2011 10:00 PM


Originally Posted by brow318 (Post 14482226)
Hey guys. Can anyone tell me what the square casting blocks are on the side of the block just below the head. One has a threaded hole on the left front side of motor. What is it for? Can these be removed? They look like square casting blocks from when the block was cast.

Thanks...Kevin

http://www.sprint27.com/wp-content/u...ckCastings.png

all ik is i got my motor from a 2003 Z06 and it has the same thing but i dont use it for anything

01ssreda4 Feb 9, 2011 11:30 PM

On an f body, the one with the threaded hole is used for the rear alt bolt. The other 3 or whatever aren't used for anything I don't believe.

S10xGN Feb 10, 2011 08:15 PM

Not 100% sure, but my guess would be that they are locating registers for the tool fixtures that GM used to machine the block.


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