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 Post subject: Cadillac 4.1L V8 pistons
PostPosted: Fri Mar 04, 2022 6:07 pm 
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Turbo Slant 6

Joined: Fri Jul 13, 2007 11:11 pm
Posts: 637
Location: Cincinnati
Car Model:
Are these pistons of any use in our slant 6 engines?
Looks like they would drastically lower CR. Slants 1.74" vs Cadillacs 1.63" compression heights, not to mention the Caddys dish.


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PostPosted: Fri Mar 04, 2022 7:32 pm 
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Joined: Sat Oct 12, 2002 11:22 am
Posts: 3739
Location: Sonoma, Calif.
Car Model: Many Darts and a Dacuda
The 3.465 bore size works but the 1.63 compression height (+ dish) and the .865 piston pin size are not a good match.
DD


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PostPosted: Sat Mar 05, 2022 9:39 am 
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Turbo Slant 6

Joined: Fri Jul 13, 2007 11:11 pm
Posts: 637
Location: Cincinnati
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Thank you, Sir, I appreciate the response.


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PostPosted: Sun Mar 06, 2022 3:39 am 
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Joined: Mon Oct 21, 2002 11:08 am
Posts: 15371
Location: Blacksburg, VA
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You could make these work with a 198 rod and/or with lots of block/head milling, but otherwise Doug is right.

Lou

_________________
"You mean you still have a Slant 6 in that thing?"


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PostPosted: Sun Mar 06, 2022 8:41 am 
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Turbo Slant 6

Joined: Fri Jul 13, 2007 11:11 pm
Posts: 637
Location: Cincinnati
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Dart270 wrote:
You could make these work with a 198 rod and/or with lots of block/head milling, but otherwise Doug is right.

Lou

Yah in a pinch but not worth it..... I saw some for sale cheap and saw the bore size and wondered how close of a direct replacement....thanks


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