Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

8.1 in a 96 t/a

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Old May 1, 2007 | 08:33 PM
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Default 8.1 in a 96 t/a

Has anyone thought of doing this?Would there be any fitment issues being that it is a tall deck,that would differ from a regular bbc swap.Just a thought,I was searching ebay and found some for a pretty decent price and they seem to have great power potential.
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Old May 1, 2007 | 10:07 PM
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wow! that would be a really kick *** swap!! nope have not heard of it thus far. but you know how it is...by time you think of it...it has prob been done before. lol
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Old May 1, 2007 | 10:38 PM
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Originally Posted by 1luckeyt/a
Has anyone thought of doing this?Would there be any fitment issues being that it is a tall deck,that would differ from a regular bbc swap.Just a thought,I was searching ebay and found some for a pretty decent price and they seem to have great power potential.
ive never seen a newer factory 8.1 make much power, but i guess they are universal big blocks. are they like LS motors?
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Old May 2, 2007 | 09:06 AM
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What sparked this thought was a hot rod article in 2003.Gm made a performance version of this engine for marine racing that made 530hp /560ftlbs of tq with a 9.0:1 comp ratio.I think it was called the hp3 and the stock motor was the hp1.Like I said just a thought right now ,and I hope someone has done that way we could learn from their mistakes and save me money on all the tools I send into orbit in frustration.
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Old May 2, 2007 | 05:55 PM
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the 8.1 is just a bbc with fuel injection.
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Old May 3, 2007 | 04:06 AM
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Im almost done with that same swap actualy, like above just a BBC with fuel injection. my motor is an older block setup with big carb, i almost went ram jet but too expensive may upgrade later.. Its a good idea though if you wanta pop the hood and keep the LS theme,
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Old May 3, 2007 | 08:39 AM
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Originally Posted by Sunset'01Z
the 8.1 is just a bbc with fuel injection.
they should make a big block LSX motor.... the LS7 is probably the closest theyll get though. an all aluminum big block LSX would probably weigh around the same as a SBC with an iron block and aluminum heads.
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Old May 3, 2007 | 10:30 AM
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Sorry correction,the article is in car craft you can see it on their web site under their tech articles. From what I saw there are some parts that would interchange with older big blocks but it looked to have cathedral style port like the ls1.Those head/cam packages are a good bit of money for those from raylar I think the company was called.
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Firing order --I heard it's different ?
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