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| Block & crank weights? https://slantsix.org/forum/viewtopic.php?t=57655 |
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| Author: | Old6rodder [ Thu May 07, 2015 8:53 pm ] |
| Post subject: | Block & crank weights? |
Howdy, Gentlemen, Does anyone know what the lightest year forged-crank iron block was? And the lightest weight forged crank itself? How about rods? Slugs? Drool head? Looking to build up a fresh short block for my HAMBster, and thinking of chasing parts for the lightest mix & match "stock components" "forged" iron engine I can, but don't know where else to go for the information. Also, any idea what the (likely slight  ) weight saving might be within that framework?
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| Author: | sandy in BC [ Fri May 08, 2015 6:20 am ] |
| Post subject: | |
lightest head in my collection is a 69 drool tube Heaviest crank is a 65.... 83 lbs |
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| Author: | Dart270 [ Fri May 08, 2015 2:42 pm ] |
| Post subject: | |
I agree the mid 60s to early 70s heads are lightest, and I think they should all be about the same from 63-74 (around 70 lbs dressed). 75-79 or 80 heads are heavy - 75-79 lbs. 81-up hydro heads are more like 70s lbs. I have not weighed too many blocks, but a few. Mid 60s 3-plug blocks are maybe 5-10 lbs lighter than the late 60s-70s forged blocks. 84-up cast crank blocks are about 20-25 lbs lighter than 60s blocks. Forged cranks from about 63-76, from what I have weighed, are about 72 lbs and are much heavier if you go before about 63 (80-88lbs?). Cast cranks from about 77-82 are also 72 lbs or so, then 83 or 84 they went to the 60 lb cast cranks. I have just a few samples from each time period, so no iron clad numbers or averages/distributions... Hope this helps, Lou |
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| Author: | Old6rodder [ Sun May 10, 2015 9:55 pm ] |
| Post subject: | |
Thanks, Lou, Those numbers're pretty much what I thought I recalled ferreting out here & there a while back on this site. But now that I'm a bit more actively interested in the concept, my (lack of) search skills failed me in re-locating'em. |
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