Completed 89 IROC Build

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Oct 27, 2019 | 09:44 PM

kenmaisaano

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Joined: Jan 2018

Posts: 40

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Completed 89 IROC Build

Some pictures of my build, 89 Iroc Five speed 373 Gears 305 stroked to 334. All California Smog Legal. I kept the complete drivetrain all original to the car.

Oct 27, 2019 | 09:56 PM

JimInMiami

Junior Member

Joined: Nov 2017

Posts: 80

Likes: 18

From: Miami Beach

Car: 1986 IROC-Z

Engine: 305 SBC, SLP Runners, Headers

Transmission: AUTO

Axle/Gears: G80

Re: Completed 89 IROC Build

Wow, super clean, congrats!! More details on the engine would be great.

Oct 27, 2019 | 09:56 PM

chazman

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Joined: Dec 2001

Posts: 9,943

Likes: 642

From: Chicagoland

Car: 1989 IROC-Z. Original owner

Engine: LB9. Dual Cats. Big Cam

Transmission: World Class T-5

Axle/Gears: BW 3.45

Re: Completed 89 IROC Build

Very nice work, Ken! I love the idea of a stroked 305. I'll give a closer look at MCACN.

Oct 27, 2019 | 10:10 PM

kenmaisaano

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Joined: Jan 2018

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Re: Completed 89 IROC Build

Quote:

Originally Posted by JimInMiami

Wow, super clean, congrats!! More details on the engine would be great.

9.5to1 Compression, Bored with Torque plate and Plateau finish hone
1620 Grams Internal Balanced 3.750 Stroke
Airflow through complete induction system @.500Lift 210CFM @28" Air Speed FT/SEC 300
Crane 214-220 112 482 496 lift/after 1.6 rockers in at 108 #2032
Trick flow 170 Heads
Edelbrock fully ported lower with EGR
SLP Runners
Ported GM Upper
52MM Throttle body
22LB Bosh Injectors
Hooker shorty Headers

Oct 27, 2019 | 11:15 PM

CKone

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iTrader: (2)

Joined: Apr 2016

Posts: 458

Likes: 171

From: East Moline, IL

Car: 88 T/A, 91 Formula, 94 Firehawk

Engine: 400 Pontiac, 5.0 TPI, 5.7 LT1

Transmission: 700R4, T5, T56

Axle/Gears: 4.10, 3.42, 3.42

Re: Completed 89 IROC Build

This is one very clean ride you have! Great job and love the attention to detail! Those wheels and that blue are killer together!

Oct 28, 2019 | 08:52 AM

JimInMiami

Junior Member

Joined: Nov 2017

Posts: 80

Likes: 18

From: Miami Beach

Car: 1986 IROC-Z

Engine: 305 SBC, SLP Runners, Headers

Transmission: AUTO

Axle/Gears: G80

Re: Completed 89 IROC Build

Quote:

Originally Posted by kenmaisaano

Outstanding, those are some serious HP and torque numbers you put up, similar mods are on the bucket list for my 305.

Oct 28, 2019 | 09:05 AM

RKeats

Senior Member

Joined: Feb 2017

Posts: 608

Likes: 147

From: Oakville, Ontario

Car: 1991 GTA T-Top / 2014 Mustang GT

Engine: 5L TPI

Transmission: WCT5

Axle/Gears: 3.42

Re: Completed 89 IROC Build

Beautiful build, and impressive numbers from that 305! What kind of rims are those? They look perfect on your car.

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Oct 28, 2019 | 11:59 AM

JimInMiami

Junior Member

Joined: Nov 2017

Posts: 80

Likes: 18

From: Miami Beach

Car: 1986 IROC-Z

Engine: 305 SBC, SLP Runners, Headers

Transmission: AUTO

Axle/Gears: G80

Re: Completed 89 IROC Build

Ken, just visited your web page, you guys do some impressive builds! http://www.mascarauto.com/ Is the IROC for personal use or a customer car??

Oct 28, 2019 | 12:13 PM

chazman

Supreme Member

iTrader: (4)

Joined: Dec 2001

Posts: 9,943

Likes: 642

From: Chicagoland

Car: 1989 IROC-Z. Original owner

Engine: LB9. Dual Cats. Big Cam

Transmission: World Class T-5

Axle/Gears: BW 3.45

Re: Completed 89 IROC Build

Side story on this car.

I have a friend who at the time was looking for a blue, 5 speed, t-top IROC. Someone I know on TGO, texted me this car's CL ad, since it was fairly local to me. I figured I'd wait the 2 days to get home before talking to my friend about it. By the time I got home, Ken had already bought it. Small world!

Oct 28, 2019 | 01:00 PM

#10

dmccain

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iTrader: (2)

Joined: Mar 2014

Posts: 4,553

Likes: 807

From: South Ms

Car: 89 Firebird

Engine: 355 TBI

Transmission: 700R4

Axle/Gears: 10 Bolt.Posi-3.73s

Re: Completed 89 IROC Build

Awesome build and I love you kept it TPI with all the rage off LS engines these days.

Oct 28, 2019 | 01:53 PM

#11

chazman

Supreme Member

iTrader: (4)

Joined: Dec 2001

Posts: 9,943

Likes: 642

From: Chicagoland

Car: 1989 IROC-Z. Original owner

Engine: LB9. Dual Cats. Big Cam

Transmission: World Class T-5

Axle/Gears: BW 3.45

Re: Completed 89 IROC Build

Quote:

Originally Posted by dmccain

Awesome build and I love you kept it TPI with all the rage off LS engines these days.

Same! This is so much cooler than an LS swap.

Oct 29, 2019 | 07:04 PM

#12

DynoDave43

Supreme Member

iTrader: (11)

Joined: Aug 2013

Posts: 4,829

Likes: 914

From: MICHIGAN

Car: 1988 Trans Am

Engine: L03

Transmission: 700R4

Axle/Gears: 10 Bolt 2.73 Open

Re: Completed 89 IROC Build

Beautiful car! And I too love the 334!

Oct 29, 2019 | 07:38 PM

#13

WildCard600

Senior Member

Joined: Feb 2019

Posts: 786

Likes: 197

From: SW Missouri

Car: 1989 Trans Am

Engine: sp357

Transmission: TKX

Re: Completed 89 IROC Build

WOW

Looks fantastic.

Oct 29, 2019 | 08:05 PM

#14

TTOP350

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iTrader: (9)

Joined: Oct 2001

Posts: 12,223

Likes: 1,149

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

Re: Completed 89 IROC Build

What an outstanding job top to bottom. wow Enjoy it!

Oct 29, 2019 | 11:15 PM

#15

kenmaisaano

Thread Starter

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Joined: Jan 2018

Posts: 40

Likes: 13

Re: Completed 89 IROC Build

Thanks for the compliments. I put about 200 miles on her and she is really fun to drive. Kevin is going to tune her on the chassis dyno this Saturday.

Oct 29, 2019 | 11:17 PM

#16

kenmaisaano

Thread Starter

Junior Member

Joined: Jan 2018

Posts: 40

Likes: 13

Re: Completed 89 IROC Build

Quote:

Originally Posted by chazman

Wow, It is a small world, Just think of all the money you would of saved me

Oct 29, 2019 | 11:25 PM

#17

chazman

Supreme Member

iTrader: (4)

Joined: Dec 2001

Posts: 9,943

Likes: 642

From: Chicagoland

Car: 1989 IROC-Z. Original owner

Engine: LB9. Dual Cats. Big Cam

Transmission: World Class T-5

Axle/Gears: BW 3.45

Re: Completed 89 IROC Build

Quote:

Originally Posted by kenmaisaano

Wow, It is a small world, Just think of all the money you would of saved me

Ha! Or cost my friend!

Oct 30, 2019 | 12:12 AM

#18

kenmaisaano

Thread Starter

Junior Member

Joined: Jan 2018

Posts: 40

Likes: 13

Re: Completed 89 IROC Build

I Had a 83 HO L69 Red 5 Speed , It was a Ex showroom stock car from a GM engineer with the Red Camaro Camaro seats, back in 1984.. Then in 1990 I built this Super Stocker. These two cars made me fall in love with the Thirdgens. So I am glad to have one back in my hands..