WTB : Black Iroc-Z

[Bigbirdxx]

Thanks for all the tips and help. Im still looking for the right Black Iroc.

[al8apex]

Originally Posted by Bigbirdxx

Really nice car that is. A bit more than i want to spend on one of these cars. Why did no one drive such a great car?

no clutch pedal?

[Bigbirdxx]

Really leaning towards a 5.7 auto.

[al8apex]

Originally Posted by Bigbirdxx

I am looking for a clean Black Iroc Z 1986-1989.
Either a 305 5speed or a 350 auto.
Under 60000 miles please. Must be in good condition.
Thank youuuu

The BEST of those years would be a G80/G92 performance axle equipped 1989 with the N-10 dual cat exhaust.

The most fun would be the LB9 305 5 speed G80/G92.

The G92 will include the "1LE" rear brakes and positraction, but then ALL 1989 & up f bodies with 4wdb got the larger rear brakes in 1989.

They did make a few 1990 IROC's, but it was a very short production model as they introduced the 1991 model style very early. The 1990 got the air bag steering wheel, certainly the rarest IROC made.

[Bigbirdxx]

That is good info. I really like the bodystyle and Iroc attitude. I actually attended an Iroc Race back around 1987 at Nazareth Speedway, Pennsylvania. What a time

[The Boss]

Originally Posted by al8apex

The BEST of those years would be a G80 performance axle equipped 1989 with the N-10 dual cat exhaust.

The most fun would be the LB9 305 5 speed G80.

The G80 will include the "1LE" rear brakes and positraction, but then ALL 1989 & up f bodies got the larger rear brakes in 1989.

They did make a few 1990 IROC's, but it was a very short production model as they introduced the 1991 model style very early. The 1990 got the air bag steering wheel, certainly the rarest IROC made.

G80 was just the Posi Rear RPO, G92 was the performance gears RPO code and not all of the 89's got the N10 exhaust as it was phased in that year. The 89 & up cars that got the "1LE" rear brakes (larger, aluminum Borg Warner calipers) were those equipped with the J65 4 Wheel Disk Brakes package. The nice thing about ordering a L98 5.7 model IROC was that you got all of the good stuff with it - the G80 posi, G92 3:23 gears, J65 rear disc, KC4 engine oil cooler and the power steering cooler that was amazingly similar to the ones on the 69 TA's.

Not all IROC's were built the same, and unless you check the RPO codes, an LB9/Auto can easily be disguised as a L98 one - but they are vastly different animals. The LB9 in auto form was neutered with the smaller cam while the LB9 coupled with the 5spd (MK6 World Class T5 in 88 & up) got the same cam as the 350. The only exception here is the 85 models that got the Corvette L98 Cam in the LB9 and was only available in auto form. Those are great cars to own as they are responsive in auto form. Don't buy an 86 at all, it was the low point of the bunch with the awkward high mounted stop light & the smaller cam, no 5spd & no 5.7.

1990 is the shortest production year ever for the Camaro & Firebird starting in the summer of 1989 and ending on December 31, 1989 - there were NO 1990 Camaros or Firebirds built in 1990. 1991 model year started on January 1st, 1990 and ended in the summer of 1991.

[70 copo]

The Ohio Plant agrees...

[Bigbirdxx]

This is great info for all. Thanks guys for your input.

[al8apex]

Originally Posted by The Boss

G80 was just the Posi Rear RPO, G92 was the performance gears RPO code and not all of the 89's got the N10 exhaust as it was phased in that year.

my brain fade, G92 is correct, any 89-90 IROC with G92 / N10 is the one to have, all others are "cruisers"

[al8apex]

Originally Posted by The Boss

The nice thing about ordering a L98 5.7 model IROC was that you got all of the good stuff with it - the G80 posi, G92 3:23 gears, J65 rear disc, KC4 engine oil cooler and the power steering cooler that was amazingly similar to the ones on the 69 TA's.

not true, you can have a 5.7 IROC without G92 and you get single exhaust/cats.

Because of the mid year phase in of the N10 exhaust, the early 89 F body cars (C & P) with G92 didn't get the N10.

however all Pontiac Formulas/Trans Ams DID get G92 with the 5.7 after the intro date, not true with the Camaros

FYI, ANY LB9 G92 5-speed will be the "good" one

Co-drove at many, many SCCA events with one of the "father's" of the 1LE, used to know part numbers upside down, time is a cruel thing ... :-)