Calling on Iroc-Z's with 454
Calling on Iroc-Z's with 454
My buddy thinks that fewer than 10 people (Him included) have put a 454 into a Iroc-z. I told him he needs help if he thinks less than 10 people have put 454's in a Iroc-z. We have a bet going winner bus lunch for a week.
Any input on this?
Thank you for your time and response.
Mark
Any input on this?
Thank you for your time and response.
Mark
Joined: Mar 2000
Posts: 43,187
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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
And a pretty silly argument. Who cares if it's an Iroc-Z?
Re: Calling on Iroc-Z's with 454
I agree, But this guy things everything he does, no one else can do or has done. I called him out on the 454 in a Iroc and told him plenty of people do it and he told me he was the first in 2008 to do so. I am just looking for proof to shut him up and collect on the bet.
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Joined: Jul 1999
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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
Re: Calling on Iroc-Z's with 454
What's so special about it being an IROC-Z? The only difference is cosmetics.
My 87 IROC-Z started with a 454 back in 2001 and has continually grown since then. This spring it will be up to a 588. I could push this block to a 605 but that starts getting into weird parts in a short deck block.
I still have the original 5.7L Tuned Port Injection badging on the rear bumper
Dart Big M block
4.625" bore x 4.375" stroke = 588
4.625" bore x 4.500" stroke = 605
My 87 IROC-Z started with a 454 back in 2001 and has continually grown since then. This spring it will be up to a 588. I could push this block to a 605 but that starts getting into weird parts in a short deck block.
I still have the original 5.7L Tuned Port Injection badging on the rear bumper

Dart Big M block
4.625" bore x 4.375" stroke = 588
4.625" bore x 4.500" stroke = 605
Last edited by AlkyIROC; Nov 29, 2011 at 10:42 PM.
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Re: Calling on Iroc-Z's with 454
Sounds like, d00d is an idiot.
Nod agreeably, keep your mouth shut, and laugh behind his back.
People like that aren't worth arguing with. Not only, they drag you down to their level, and once they get you there, beat you with their massive experience; but also, bystanders can't even tell which one of you is the greater idiot.
Let him make a fool of himself all by himself without your help making yourself look like a fool too.
Nod agreeably, keep your mouth shut, and laugh behind his back.
People like that aren't worth arguing with. Not only, they drag you down to their level, and once they get you there, beat you with their massive experience; but also, bystanders can't even tell which one of you is the greater idiot.
Let him make a fool of himself all by himself without your help making yourself look like a fool too.
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From: St.Louis, IL
Car: 1988 Camaro
Engine: 377
Transmission: TH350; Circle D 4200 converter
Axle/Gears: Ford 9"
Re: Calling on Iroc-Z's with 454
I'd just tell him you ran for President back in 2008 also. Won the election, and made a law that Santa's elves can no longer work 24 hour shifts because it's unconstitutional.
Joined: Dec 2005
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From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: Calling on Iroc-Z's with 454
Dude just leave the guy alone, those kinds of people are poison for your mental stability and happiness. You dont really care that much but these people just get under your skin and etch away at your sanity over time.
I had the misfortune of meeting this guy on ONE occasion, and after all his stories about NASCAR crankshafts and you have to use thicker head gaskets with a stroker motor and how he had a 400 bored out to a 454 and how his 84 IROC did 210 mph and how LS1's are just LT1's with an aluminum block.
I just gave up and avoided the guy in the future. I suggest you do the same before you end up hitting him and having assault charges filed against you.
I had the misfortune of meeting this guy on ONE occasion, and after all his stories about NASCAR crankshafts and you have to use thicker head gaskets with a stroker motor and how he had a 400 bored out to a 454 and how his 84 IROC did 210 mph and how LS1's are just LT1's with an aluminum block.
I just gave up and avoided the guy in the future. I suggest you do the same before you end up hitting him and having assault charges filed against you.
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From: Ohio
Car: 1970 chevelle
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Re: Calling on Iroc-Z's with 454
Got a 89 just finished with 454 and turbo 350,its a mild iron head build,781 heads,roller rockers,.540 lift,air gap,4-bolt,700 dbbl pumper,Hei billet dis,patriot headers,3" flowmaster,9" ford,5:14 gear,spool,8 point cage Boxed rear control arms,Torque arm relocation adjustable,frame tied Paint is not great,but was a decent deal bought it rolling
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From: San Antonio TX.
Car: Currently have 3 cars and 1 truck.
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Transmission: LS1 T-56 & PG w/vendor's
Axle/Gears: Built 10 bolt& 9inch w/spool
Re: Calling on Iroc-Z's with 454
OK, I count 3 so far. 7 more and its lunch time. Do you get to pick where you eat?
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From: Fairview Heights Illinois
Car: 1986 Irocz
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.25:1
Re: Calling on Iroc-Z's with 454
I've known of 5 just in the Saint Louis area, and 1 with an RS (not Irocz). The RS was with a 5-speed and it didn't last very long.
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From: MN
Car: 1982 Camaro
Engine: 555 BBC
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Re: Calling on Iroc-Z's with 454
By your post count and question, I'm guessing you are under 16 years old. If not, I feel sorry for you. These cars sure find their ways into the wrong hands and give us owners a bad reputation. No wonder people ask if my car trailer is my home......
BTW, I have 1 of 1 produced 1982 IROC Z's with a 555 BBC. I bored my 350 to a 4.600 bore. It really unshrouds the valves for that "seat of the pants" acceleration.
BTW, I have 1 of 1 produced 1982 IROC Z's with a 555 BBC. I bored my 350 to a 4.600 bore. It really unshrouds the valves for that "seat of the pants" acceleration.
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Joined: Feb 2010
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From: San Antonio TX.
Car: Currently have 3 cars and 1 truck.
Engine: 1970&92 Cams,both BBC's
Transmission: LS1 T-56 & PG w/vendor's
Axle/Gears: Built 10 bolt& 9inch w/spool
Re: Calling on Iroc-Z's with 454
By your post count and question, I'm guessing you are under 16 years old. If not, I feel sorry for you. These cars sure find their ways into the wrong hands and give us owners a bad reputation. No wonder people ask if my car trailer is my home......
BTW, I have 1 of 1 produced 1982 IROC Z's with a 555 BBC. I bored my 350 to a 4.600 bore. It really unshrouds the valves for that "seat of the pants" acceleration.
BTW, I have 1 of 1 produced 1982 IROC Z's with a 555 BBC. I bored my 350 to a 4.600 bore. It really unshrouds the valves for that "seat of the pants" acceleration.
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From: MN
Car: 1982 Camaro
Engine: 555 BBC
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Axle/Gears: Aluminum Moser 3.89
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From: Springfield,Mo
Car: 87 Berlinetta,work in progress
Engine: 468 BB,still in the build process
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Axle/Gears: 9" Ford,learning how to live under
Re: Calling on Iroc-Z's with 454
I must have been the first,put a 468 9in my 87 Iroc in 06,was a no brainer swap.Any idiot who can put an engine in ANYTHING and make it run,can pull it off.
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From: Southern California
Car: 1992 Camaro RS
Engine: 8.0:1 454/Mild Hyd roller/Accel DFI
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Re: Calling on Iroc-Z's with 454
Here's the Thread detailing my 454 swap
https://www.thirdgen.org/forums/engi...-454-swap.html
https://www.thirdgen.org/forums/engi...-454-swap.html
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From: Winnipeg, Manitoba
Car: 86 Camaro IROC-Z
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Re: Calling on Iroc-Z's with 454
I have an 86 Iroc-z with a 900hp 565, I know it's not a 454 but it should count. See my build below
https://www.thirdgen.org/forums/engi...86-camaro.html
https://www.thirdgen.org/forums/engi...86-camaro.html
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From: Grand Rapids, MI
Car: 1987 IROC-Z
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Re: Calling on Iroc-Z's with 454
Back in 91 my dad read an article along the lines of "mouse body; rat engine" and put a 454 in his 87 IROC-Z.
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From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: Calling on Iroc-Z's with 454
Got a 89 just finished with 454 and turbo 350,its a mild iron head build,781 heads,roller rockers,.540 lift,air gap,4-bolt,700 dbbl pumper,Hei billet dis,patriot headers,3" flowmaster,9" ford,5:14 gear,spool,8 point cage Boxed rear control arms,Torque arm relocation adjustable,frame tied Paint is not great,but was a decent deal bought it rolling
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From: North Salt Lake
Car: '86 Camaro, '94 Camaro, 3 others
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Axle/Gears: 3.42, 3.23, WTB/WTT 2.93
Re: Calling on Iroc-Z's with 454
What's so special about it being an IROC-Z? The only difference is cosmetics.
My 87 IROC-Z started with a 454 back in 2001 and has continually grown since then. This spring it will be up to a 588. I could push this block to a 605 but that starts getting into weird parts in a short deck block.
I still have the original 5.7L Tuned Port Injection badging on the rear bumper
Dart Big M block
4.625" bore x 4.375" stroke = 588
4.625" bore x 4.500" stroke = 605
My 87 IROC-Z started with a 454 back in 2001 and has continually grown since then. This spring it will be up to a 588. I could push this block to a 605 but that starts getting into weird parts in a short deck block.
I still have the original 5.7L Tuned Port Injection badging on the rear bumper

Dart Big M block
4.625" bore x 4.375" stroke = 588
4.625" bore x 4.500" stroke = 605
Thing is, I've seen a tall deck under a stock hood of a third gen, with power brakes and a/c but no air cleaner. Aside from the Hooker swap headers being intended for 9.8", I don't see any other problem with just starting tall deck to begin with. For those who can't afford a 502 block or aftermarket block, a tall deck truck 427 block is a cheap way to build a 575. Sure, the aftermarket block offers a raised cam, but the truck 427 can be bored to 4.390" safely, so using 30-over Ford 460 rings is an option.
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