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  #11  
Old 09-10-2019, 01:16 AM
Charley Lillard Charley Lillard is offline
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It's ok but still devalues it. A machinist can deck a block without cutting that area. They usually don't think it matters.
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  #12  
Old 09-10-2019, 02:48 AM
L78M22Rag L78M22Rag is offline
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George, I’d say those broach marks are way too heavy, and so is the stamp.

WRT the guy that re-stamped his original block, I think he’s digging a deeper hole. I’d rather have to explain why my block was decked, than to have to explain why the block was also re-stamped. Perhaps the right person may have been able to lift an impression of the original stamp but now even that’s lost.
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  #13  
Old 09-10-2019, 02:55 AM
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Congrats on your 1970th reply Helmut.
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Old 09-10-2019, 11:51 AM
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My brother had a block decked and the machinist left the stamped area untouched.
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Old 09-10-2019, 01:10 PM
TimG TimG is offline
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Decking while leaving the numbers can be done. I only post this picture because it is a car I owned twice. The car has no deduction during judging, even at a National level.
An ex CanAm racer owned this car before me and felt it was necessary to deck the block.
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Old 09-10-2019, 02:46 PM
x33rs x33rs is offline
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On a proper rebuild, if you're particular about the details, it's almost always necessary to deck a block if you want things square.

I haven't come across a virgin block yet that is square, some even twisted. Even a brand new GM crate engine I have here isn't square and it hasn't even been run yet. Sometimes I come across blocks that were decked and still not square. It's also beneficial to have the piston as close to zero deck as possible for better quench, although on Chevrolets when stamps become an issue I usually spend the money on custom pistons and move the pin height.

But I'm one that is very picky on my engine builds and always looking to make them better than factory, even on a stock build. I just finished a 455 for a customer that came from what was supposed to be a reputable shop. It was decked. Was found to still be uneven front to back, had to take another .007" off.

Just tossing out some reasons why people deck these old engine blocks. 40 years ago no one cared about the numbers. The saving grace on some of these where the damage is already done is that you might be lucky enough to have an untouched vin stamp by the oil filter.

Last edited by x33rs; 09-10-2019 at 02:50 PM.
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Old 09-10-2019, 02:48 PM
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Yep, I just cut my IROC Camaro's block without removing the numbers.

https://www.yenko.net/forum/attachme...1&d=1568126846
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Old 09-10-2019, 02:57 PM
x33rs x33rs is offline
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There ya go

I've seen more of this now that the hobby has become a numbers game.

Last edited by x33rs; 09-10-2019 at 03:02 PM.
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Old 09-10-2019, 03:07 PM
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Default block stamping

Thanks for all the comments, I appreciate it. Rick, I am not sure who did the engine. The car originally came from New York, but the restoration was not done there, from what I know the motor was built in North Carolina, not sure of the builders name. Thanks again, George
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Old 09-10-2019, 03:31 PM
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Quote:
Originally Posted by x33rs View Post
There ya go

I've seen more of this now that the hobby has become a numbers game.

This hobby has been a #'s game for collectible cars for 40 plus years. Not all are interested, but purist have always been interested in #'s.
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