It's an 8.4L 770 HP through full exhaust. Check it out http://www.zlx.com/camaro/zl1.htm
8.1L Suburban engine
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,277
Likes: 0
From: Hoboken NJ
8.1L Suburban engine
I saw a while ago there was a guy in a magazine that put a 8.1L suburban engine in a corvette. Why hasnt any tuners tried starting out with this engine for tons of torque and maybe with a blower break the 8 second barrier. What are anyone's ideas.
Race Director
Joined: Feb 1999
Posts: 14,263
Likes: 1
From: DFW, Texas...2001 Millennium Yellow Z06
Re: 8.1L Suburban engine (wsaracen)
that motor is a BIG heavy mo fo...thought about gettin one for my truck and moddin it up......that would be a GREAT SC motor as it has like 9:1 compression :yesnod:
thanks
thanks
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,277
Likes: 0
From: Hoboken NJ
Re: 8.1L Suburban engine (Ram Air Tony)
couldn't the amount of power capablilities outweigh the weight. Im sure it would be great for the dragstrip.
The article is VETTE March 2002
The article is VETTE March 2002
Drifting
Joined: Feb 2000
Posts: 1,922
Likes: 0
From: Boulder, Colorado
Re: 8.1L Suburban engine (wsaracen)
I saw a while ago there was a guy in a magazine that put a 8.1L suburban engine in a corvette. Why hasnt any tuners tried starting out with this engine for tons of torque and maybe with a blower break the 8 second barrier. What are anyone's ideas.
<edited to add, the car in the link has an aluminum 8.4L block. don't think you can buy one of those over the counter :))
[Modified by Miles in Michigan, 8:16 PM 6/19/2002]
Le Mans Master
Joined: Jul 2000
Posts: 7,758
Likes: 0
From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Re: 8.1L Suburban engine (wsaracen)
The 8.1 liter truck motor is nothing more than a Traditional Big Block Rat motor. In fact its nothing more than a stroked 454 Big Block.
Cast Iron Block, Cast Iron Heads
340 HP / 455 TQ
Its displacement is 496 cubic inches:
4.25 Bore x 4.37 Stroke
You would have to butcher the C5 engine bay to get it to work.
Not to mention the 8.1 liter is made to work with the allison transmission.
Cast Iron Block, Cast Iron Heads
340 HP / 455 TQ
Its displacement is 496 cubic inches:
4.25 Bore x 4.37 Stroke
You would have to butcher the C5 engine bay to get it to work.
Not to mention the 8.1 liter is made to work with the allison transmission.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,277
Likes: 0
From: Hoboken NJ
Re: 8.1L Suburban engine (kewlbrz)
dont get me wrong, i would never do this. i was just reading my old magazines. vette march 2002 has someone that put this engine into a c5. i thought it was pretty cool. i guess the aluminum 7L would be the way to go although 8.1L would be 8 cubic inches bigger then the viper engine
Le Mans Master
Joined: Jul 2000
Posts: 7,758
Likes: 0
From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Re: 8.1L Suburban engine (wsaracen)
you can get to 471 cubic inches with a C5R block using a lunati 4.25 crank, and a 4.20 bore. Definatly never be able to breath as good as a traditional big block chevy can, but it would be plenty of displacement! :yesnod:
Race Director
Joined: Dec 1999
Posts: 13,459
Likes: 1
From: Westport, MA. www.tbyrnemotorsports.com - 1-877-4-TBYRNE
St. Jude Donor '06-'07
Re: 8.1L Suburban engine (wsaracen)
The 8.1 is a BIG motor that would be a tight fit and require alot of fabrication. The above pitures show the 8.1 that is in our 2002 Suburban topped with a Whipple supercharger/intercooler.
Tom
[Modified by tbyrne, 11:26 PM 6/20/2002]
Drifting
Joined: Jan 2001
Posts: 1,511
Likes: 1
From: paradise valley az. us
Re: 8.1L Suburban engine (Shinobi's97)
There are so many tricks available forced air/proper tuning/stroker kits etc....Weve found the Tqe. in a N/A 422 stroker with forced air is = to yhat of the rat with out fabrication costs,can be put back to stock and parts investments partially recouped.Why bother with all the 21st century smarts lets all go for blown strokers .A ROUND FOR EVERYONE TROYS TREAT!!!Dave
Race Director
Joined: Dec 1999
Posts: 13,459
Likes: 1
From: Westport, MA. www.tbyrnemotorsports.com - 1-877-4-TBYRNE
St. Jude Donor '06-'07
Re: 8.1L Suburban engine (Shinobi's97)
Shinobi's97: Thanks for pointing that our. The fingers didn't type what the brain was thinking :)
Tom
Tom
Drifting
Joined: Apr 2001
Posts: 1,763
Likes: 24
From: Austin TX
Re: 8.1L Suburban engine (kewlbrz)
you can get to 471 cubic inches with a C5R block using a lunati 4.25 crank, and a 4.20 bore. Definatly never be able to breath as good as a traditional big block chevy can, but it would be plenty of displacement! :yesnod:
Eric
Le Mans Master
Joined: Dec 1999
Posts: 5,887
Likes: 0
From: Chattanooga TN
St. Jude Donor '05-'06-'07
Re: 8.1L Suburban engine (kewlbrz)
The 8.1 liter truck motor is nothing more than a Traditional Big Block Rat motor. In fact its nothing more than a stroked 454 Big Block.
These changes severely limit what can be done with the aftermarket big block parts currently in production. :cry
Le Mans Master
Joined: Jul 2000
Posts: 7,758
Likes: 0
From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Re: 8.1L Suburban engine (449pacecar)
The 8.1 liter truck motor is nothing more than a Traditional Big Block Rat motor. In fact its nothing more than a stroked 454 Big Block.
Not quite true. The 496 is reverse cooled like the LT1's were. This means that the heads are different, none of the aftermarket big block heads will fit. I believe they also changed the firing order, which rules out all the aftermarket cams.
These changes severely limit what can be done with the aftermarket big block parts currently in production. :cry
Not quite true. The 496 is reverse cooled like the LT1's were. This means that the heads are different, none of the aftermarket big block heads will fit. I believe they also changed the firing order, which rules out all the aftermarket cams.
These changes severely limit what can be done with the aftermarket big block parts currently in production. :cry
66impalaLT1: I would disagree, at least with respect to a traditional big blocks potential. The heads for a bigblock are just too much better for flow. In a C5 a super stroker would be the better choice for feasability and fit. Regarding the C5-R heads. They are 38 cc chambers (Thats a small chamber for a street car), and have a valve angle at 11 (15 on LS1/LS6) degrees. They have a higher intake port runner than LS1 production heads and stock exhaust ports other than that, they arnt much different than an LS1/LS6 heads (somewhere in between). At least that is my understanding.
[Modified by kewlbrz, 9:57 AM 6/21/2002]
Racer
Joined: Jun 2000
Posts: 297
Likes: 0
From: Carrollton, TX
Re: 8.1L Suburban engine (kewlbrz)
Big Blocks have larger bore spacing, larger bores, and bigger valves.
I've seen the BBF heads flowing 500CFM or so and 400CFM by .500". on the intake side.
Small block heads won't do this.
I've seen the BBF heads flowing 500CFM or so and 400CFM by .500". on the intake side.
Small block heads won't do this.
