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Old 10-28-2022, 11:37 AM   #1
richie 2
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Default sbc engine block weight

im able to aquire either dart or bowtie bare block...is the extra 50lb. dart gong to hurt me? SS/gt cavilier application. need advise tks
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Old 10-28-2022, 11:46 AM   #2
Andy Friar
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Default Re: sbc engine block weight

Adding weight to the nose will change your weight distribution and COG. Not that much overall, but some. All depends where you are at now and how close to the 'line' of being too front heavy you are already are. Do you believe the Dart block with make enough more hp than the Bowtie block to overcome that ~.05et drop? (Following the idea that 100# equates to a tenth in the 1/4.) Just my $.02...
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Old 10-28-2022, 12:09 PM   #3
Glenn Briglio
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Default Re: sbc engine block weight

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im able to aquire either dart or bowtie bare block...is the extra 50lb. dart gong to hurt me? SS/gt cavilier application. need advise tks
Are you sure the dart block is that much heavier than bowtie block?
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Old 10-28-2022, 12:26 PM   #4
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Default Re: sbc engine block weight

Despite being heavier, dart OR bow tie is always superior to oem sbc block. The dart is heavier BUT not 50 lbs. There is a company in Michigan that will REDUCE the weight of the block.
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Old 10-28-2022, 12:47 PM   #5
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Default Re: sbc engine block weight

Industrial Boring is the company cal so sleeve lifter bores 586-756-9110
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Old 10-28-2022, 08:23 PM   #6
MAURICE BLENDHEIM
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Default Re: sbc engine block weight

LSM Engineering in Michigan does block lightening and custom block machine work. MB
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Old 10-28-2022, 09:10 PM   #7
rboyle
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Default Re: sbc engine block weight

The Dart Little M shipping weight is 208lbs
The Dart SHP shipping weight is 175lbs
Not sure how much a filled OEM block weighs or a Bowtie but not such a big difference in weight. I prefer the Little M but that's just me.
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Old 10-28-2022, 11:50 PM   #8
MR DERBY CITY
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Default Re: sbc engine block weight

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Originally Posted by MAURICE BLENDHEIM View Post
LSM Engineering in Michigan does block lightening and custom block machine work. MB
That’s the place …Thanks Maurice
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Old 10-29-2022, 08:38 AM   #9
james schaechter
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Default Re: sbc engine block weight

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im able to aquire either dart or bowtie bare block...is the extra 50lb. dart gong to hurt me? SS/gt cavilier application. need advise tks
I have two engines for my cavalier.one is a little m and the other is a bow tie. The dart is over 30 lbs more and I hate that since cavaliers are nose heavy as it is.
At 2680, I can run two full size batteries and some weight in the rear weight box with a 200 lb driver. If I was lighter it would be a non issue. I guess part of all this depends on how much you need to weigh overall and how heavy your car is.

That being said, the car performs well with either block in terms of how it works and as far as hp the engines are virtually he same in hp.

I like to run in G which puts me at a 2680 minimum, but if you run a heavier class and can move weight to the back, I wouldn’t be concerned about a little more weight if you thought the block was too heavy.

I really like the idea of having one lightened, but not enough to spend the $$$
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Old 10-29-2022, 10:39 AM   #10
richie 2
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Default Re: sbc engine block weight

OMG lads thankyou so much for the info! vehicle pressently being assembled, with scales. weight persentage is the key. we have aquired the dart unit.... tks agian class racer!

Last edited by richie 2; 10-29-2022 at 10:41 AM.
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