Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

327 or 400

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Old Mar 18, 2003 | 11:28 AM
  #1  
87ConvRoc's Avatar
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From: South Holland, Il
327 or 400

I hav a 327 out a 66 vette and a 400sbc and i want a good street engine that i can mix it up with. I like what i have been seeing about the 400 and a buddy of mine says that the 327 is a better street engine, please help with some suggestions PLEASE????
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Old Mar 18, 2003 | 01:07 PM
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ME Leigh's Avatar
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From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
Bigger is always better. Torque is what you want for the street and a longer stroke makes more torque. Seeing that the 400 has a 3.75" storke vs. the 327 with a 3.25" stroke the 400 wins in all aspects. Build the 400 you won't regret it!
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Old Mar 18, 2003 | 04:56 PM
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heavy_chevy29's Avatar
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From: boonton, NJ
Car: 84 camaro Z28
Engine: 434sbc
Transmission: powerglide
Axle/Gears: moser 9" with 411 posi
go with the 400. i just got to start driving my 408 and all i have to say is, WOW. this car will throw you in the seats.
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Old Mar 18, 2003 | 05:38 PM
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From: Central Va.
Car: 82' Z28 IROC Clone (SOLD)
Engine: 355
Transmission: Built TH-350
Axle/Gears: 3.73 Moser 12 bolt
I love 327s. I am putting a 327 in my Camaro this summer, You say its from a 66 Vette...If its a Vette motors its probably a L79 327, Which came factory with 375 hp if I remember rightly...I'd say go 327...Only thing is, if its got double hump heads you'll either have to make brackets or something for accesorys..I made my brackets and they turned out real nice...Make you you have new valve seats to run on unleaded also!
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Old Mar 18, 2003 | 09:53 PM
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
should be no ? 400 w roller cam do not use stock guts use better rotating assemebly don't forget to internaly balance it so no one will know how big it is

Last edited by TTOP350; Mar 18, 2003 at 09:58 PM.
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Old Mar 19, 2003 | 09:34 AM
  #6  
87ConvRoc's Avatar
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From: South Holland, Il
the 327 does have the double camel hump heads, how much hp does a 400 have with a syock or mild set up???
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Old Mar 20, 2003 | 11:12 PM
  #7  
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From: New Palestine, IN (Just East of Indy)
Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
The setup I'm building this summer is a 400 block, ported Vortecs, XE274 cam, Performer RPM intake, 10:1 cr. That motor is going to pull hard. I have to try and kill some low end power so I can keep some traction and to save my tranny and rearend till I upgrade them.
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Old Mar 23, 2003 | 02:11 PM
  #8  
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Joined: Oct 2002
Posts: 9,067
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
A stock 400 was a wimpy motor for go-fast kinda cars, because it had a tiny 2bbl carb and only 180hp. However, they made an a$$load of torque... with a good 4bbl, a better cam and some headers, i dont think 350hp would be too hard to get to.
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