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.

496 into thirdgen underway.

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Old Mar 13, 2006 | 09:35 PM
  #1  
Big454blockchevy's Avatar
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
496 into thirdgen underway.

Anybody wanna smack some sense into me. Just so excited about the swap I had to post here , since this is my "home" message board. I am not building the engine , but I am sure to help with the swap and issues(headaches) that come with it. This 496 will have 10:1 comp., 6.385 rods, scat crank, worked over 781s w/2.19/1.88 valves, and a solid roller --25X/269 at 050 714/714 . My 700r4/3500 stallI just bought (suppose to handle 550hp) will more than likely be gone , replaced with a th400.
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Old Mar 13, 2006 | 09:41 PM
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
How's this?

Sounds beastly. Be careful so you can tell us how it turns out!
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Old Mar 13, 2006 | 09:48 PM
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
Originally posted by five7kid
How's this?

Sounds beastly. Be careful so you can tell us how it turns out!
Lol , I will try to update with pics if possible. Thanks
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Old Mar 14, 2006 | 09:03 PM
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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
To stray from the pack that will continue to slap you....
Attached Images  
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Old Mar 15, 2006 | 02:00 AM
  #5  
Big454blockchevy's Avatar
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
I have the feeling I'll me smacking myself as the project moves along . Having this site and the sticky on bbc swaps is a great help.
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Old Jul 8, 2006 | 05:04 PM
  #6  
Big454blockchevy's Avatar
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
Some photos (not great guality) on my 496 swap. Progress has been painfully slow .
Attached Thumbnails 496 into thirdgen underway.-007.jpg  
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Old Jul 8, 2006 | 05:07 PM
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Big454blockchevy's Avatar
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
Wanted to post more than one , here goes another. Guess not, my other attachment didn't post.

Last edited by Big454blockchevy; Jul 8, 2006 at 05:10 PM.
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Old Jul 8, 2006 | 05:50 PM
  #8  
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From: Surrey, BC
Car: 1991 Z28
Engine: 305 TPI
Transmission: WC T5
Axle/Gears: 3.73 Posi
uploads your pics to photobucket.com
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Old Jul 8, 2006 | 06:14 PM
  #9  
Big454blockchevy's Avatar
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
Thanks, let me give this a try.

Last edited by Big454blockchevy; Jul 8, 2006 at 06:18 PM.
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Old Jul 8, 2006 | 06:27 PM
  #10  
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
10:1 with that dome? Are you sure? That looks like a big dome. What pistons? The 781 heads are about 119cc which is the typical open chamber size.
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Old Jul 8, 2006 | 08:34 PM
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Big454blockchevy's Avatar
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
Ok, sorry I forgot to edit my original post. That dome is .275 which should give about 11.2 comp. ratio also the rods are 6.135 H beams. The speed pro part # is H112cp hyper piston.

Last edited by Big454blockchevy; Jul 8, 2006 at 08:43 PM.
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Old Jul 18, 2006 | 08:33 PM
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Hi i am really glad for your swap . I have a 1992 camaro and I want to do a 454 engine swap but I have some questions i hope you can help me . I want to know what should I buy to make this swap ? , Do I have to change my stock engine mounts if I have to change them what should I buy and where i can find it ? , What should do to the transmission ? , Do I have to do some cutting in the K-member ? , I should change my old radiator what should I buy and where can I find the hoses ? , Should i have to relocate the electrical wires ? , And if I want the a\c to work should i relocate it because I have read i should relocate it ?
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Old Jul 18, 2006 | 11:06 PM
  #13  
Big454blockchevy's Avatar
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
As far as the stock engine mounts , you should be able to use the stock ones. The tranny depends on the amount of power your going to be putting out. The K member I am not sure about but I will refer you to a sticky about big block swaps we've got available , it's at the very top of the engine swap forum. The elctrical wiring and a/c relocation I've got no answer for but the sticky might help. I would recommend you get an aluminum radiator. Hope I've been a little bit of help.
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Old Jul 19, 2006 | 10:30 AM
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THANK YOU . I want to go about 750hp so what should i do to the tranny . and about the cutting was wrong its not in the K-member its in the cross member . i mean did you do any cutting in the car . MAN THANK YOU
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Old Jul 19, 2006 | 07:24 PM
  #15  
Big454blockchevy's Avatar
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
Originally Posted by mhb_1985
THANK YOU . I want to go about 750hp so what should i do to the tranny . and about the cutting was wrong its not in the K-member its in the cross member . i mean did you do any cutting in the car . MAN THANK YOU
My engine hasn't gone in yet, but what I've heard is that some hammering will be needed for the header install.
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Old Jul 21, 2006 | 07:17 PM
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Nice project. No sense is a requirement for these things. You're right on track.
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Old Jul 24, 2006 | 03:39 AM
  #17  
Big454blockchevy's Avatar
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From: El Paso Texas
Car: 86 z28
Engine: Hyd. roller 498
Transmission: 700r4
Axle/Gears: 12 bolt 3.90 gears
Originally Posted by QwkTrip
Nice project. No sense is a requirement for these things. You're right on track.
Thanks, I hope to get this engine going soon!
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Old Jul 30, 2006 | 11:45 PM
  #18  
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From: Maryland
Car: 82 TRANS AM
Engine: BIG BLOCK
Transmission: TURBO 400
I HOPE YOURS RUNS AS GOOD/BETTER.

I did a gen.V 502 with 9.6 compression, 265 cc Dart Oval port heads @ 108 cc's combustion chambers. A small roller 260 @ .050 with a 1050 carb and 3.70 gears in a pump gas street driven 82 TA that weighed 3950 lbs. with driver.

Through the full exhaust and in drive (T400) the car would run 10.4 @ 129 mph on a good day and 10.7's on a normal day. What kind of horsepower are we talking about here?

Last edited by 10 SECONDS; Jul 30, 2006 at 11:51 PM.
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