1979 pontiac firebird trans am W72 400 Z code 4spd Y89 X code 10th WS6 59,129mi
- Condition: Used
- Make: Pontiac
- Model: Trans Am
- SubModel: 10TH ANNIVERSARY Y89 X CODE SILVER EDITION
- Type: T-TOP
- Trim: FULLY LOADED Y89 LIMITED EDITION
- Year: 1979
- Mileage: 59,000
- VIN: 2X87Z9L163878
- Color: SILVER CHARCOAL
- Engine size: 400ci PWH W72 hi-output Z code
- Number of cylinders: 8
- Power options: Air Conditioning, Power Locks, Power Windows
- Fuel: Gasoline
- Transmission: Manual
- Drive type: M-21 4 SPEED - 3:23 POSI - 4 WHEEL DISC WS6
- Interior color: GREY/SILVER
- Options: Cassette Player, Leather Seats
- Vehicle Title: Clear Want to buy? Contact seller!
1979 Pontiac Trans Am 10TH ANNIVERSARY Y89 X CODE SILVER EDITION
MORE PICTURES AND VIDEOLINK BELOW
1979TRANS AM 10th anniversary Y89 LIMITED EDITION 400/4SPD
XCODE#'s MATCHINGW-72 220hp HI-OUTPUT 400ci PONTIAC MOTOR (PWH)
6X - 4 HEADS - W72 only
#'s MATCHING BORG-WARNERSUPER T-104 speed(Z-CODE)
W-S6 Suspension Package
W-72 Performance Package
wide rear sway bar - close ratio steering gear box - stiffer springs and shocks - RTS radial tuned suspension
4 wheel disc brakes
3:23 posi rear end
800 cfm carb not 750 (W72 only)
ORIG chrome valve covers (W72 only)
limited edition silver anniversary package Y-89
I did check the VIN and the serial # on the engine block and the serial # on the trans and the cowl tag and they are all correct!
I PURCHASED IT FROM THE ORIGINAL OWNER OF 35 YEARS
CHANCES OF FINDING ONE WITH MORE ORIGINAL DOCUMENTATION ARE SLIM!!!!!!
I HAVE ALL THE ORIGINAL DOCUMENTATION & ALL OF THE MAINTINANCE RECORDS 1979-2015
NOT PHS REPRODUCTION! 37 YEAR OLD ORIGINAL PAPERWORK
FACTORY BUILD SHEET - ORIG WINDOW STICKER - DEALER INVOICE - RUSTY JONES -POLY COAT-
DEALER WARRANTEE - GOODYEARPAMPLET/SPACE SAVER- DEALERBOOKLET - FUEL BREAKDOWN CHART
SALES RECIEPT - AND THE TIRE TAG AND THE RUSTY JONES STICKER
LIST PRICE IN 1979 WAS$ 10,776.55
ORIG OWNERPAID $13,083.48 AFTER DEALER ADD ON'S
THE CAR WAS ORDERED WITH RUSTY JONES - CODE lll ALARM AUTO ALERT AND POLYCOAT ALL DOCUMENTED
I EVEN HAVE THE ORIGINAL TITLESINCEHE PAID CASH IN 1979!!!!
EQUIPED WITH EVERY AVAILABLE OPTION PONTIAC OFFERED!!!
pwr wind/locks/antenna/rear def,pwr trunk
mirrored T-tops (10th only) with orig t-top bags
smoked tail lights (no cracks and gas door works)
sequential turn signals(TRANS AM ONLY)
pulse wipers/sport mirrors w/remote
SPECIAL (10TH ONLY) RED LIT GAUGES
one just like this was FEATURED as the NASCAR OFFICIAL PACE CAR FOR the DAYTONA 500 @ DAYTONA MOTOR SPEEDWAY in 1979
the only difference is this one has no door decals
59,129 original miles 1 OWNER CAR(35yrs)
1 of 1,817 produced
37 yr old FACTORY ORIGINAL100% complete
98%RUST FREE - ORIGINAL PANELS -ORIGINAL PAINT
TURN KEY DRIVER
THE MOTOR IS THE L78/W72 HI OUTPUT 400CI PONTIAC MOTOR(PWH CODE)ONLY AVAIL WITH 4 SPEED IN 79
PONTIAC SAVED THESE SPECIAL W72 MOTORS FOR THE 10TH ANNIV LIMITED EDITION 4 SPEED ONLY CARS BECAUSE THEY WERE NO LONGER (AFTER 1979)PRODUCING THE 400CI OR LARGER CI ENGINES
THIS IS ONE OF THE LAST OF THE 400's EVER PRODUCED!
the motor runsREALLY good
drives nice still feels tight like a low mile car should- steering/brakes/suspension-everything works
full brakes done few years back
no clunks or rattles or grinding or leaks...
all the exhaustis original except mufflers..
ORIG HURST 4 SPEED SHIFTER WITH ORIG SHIFT KNOB
NICE BODY LINES everything fits nice
doors open and close beautifully like a new car still
original hinges and strikers and door tags
nice orig paint in jams with orig seam caulk intact
as well as trunk/jack/core support and cowl tags
ORIGINAL WEATHERSTRIP VERY NICE even the t-top rubber is not cracked or dry orig rubber seal on shaker/doors/trunk
SPECIAL SILVER INTERIOR VERY NICE ( 8-9 OUT OF 10 )
seatshaverips you will need to re-cover them for show
original headliner / it is out of the car and will need to be re-glued
orig 4 speed console (NO BURN HOLES)
shag carpet [10th only] amazing original condition 36 year old shag
spun metal dash bezel very nice w/RTS emblem.
metal dashface shines like jewelry
PERFECT DASH PAD NO CRACKS WARPAGE SUNFADE OR SCRATCHES MINT!!!
ALSOTHIS DASH IS NOT REPRODUCED**SUPER RARE**
orig key for glove box
all the plastic plated chrome trim on all the knobs and instrumentation is nice not peeling
special leather wrapped steering wheel [10th only] SUPER RAREBEAUTIFUL CONDITION!!!!
nice horn pad w/red bird emblem
original digital AM/FM stereo w/8 track [10th only ] and it dose work SUPER RARE
it is not installed in the car! the orig owner shortly after buying the car had a chrome faced PIONEERreciver with cassette installed and kept the orig radio with all his paperwork....
as seen in pictures the dash was not cut.
i might have the radio switchedback to the original if I get timeif not it will be included
all the gauges (TACH,SPEEDO,VOLTS,OIL,FUEL,WATER ALL WORK and the clock works
tilt steering column (CRUSE DELETE4 spd ) works excellent w/orig GM ignition and key
power windows and locks do work
seat belts all work and show nice color with nice chrome on all the buckles
air conditioning all intact - not working at the moment it needs recharge
all the hard plastic interior parts are very nice...original molded in color!
original tail pipes (dual chrome tips)
original aluminum WS6 TURBO wheels NO CURB RASH
with stainless steel center caps w/red bird emblems
under hood is very original - shaker hood/scoop UN-CUT
still has orig paint markings on vacume lines red/blue/yellow/white/EPDM-orig choke tubes intact and yes the choke still works
heat riser for exhaust to air cleanerintact- vacume switches - emissions -overflow jugs-and all the wiring is NOT-cut
all theplastic ductsfor the air intake is good
nothing broken or missing inder hood
even has original spark plug hold down plastic retainers for wires and original radiator hoses and hose clamps
nice plastic bumpers and spoiler, ront air da, all good paintable plastic
paint is 37yrs old ( needs paint )the paint is basicallypeeling off lower areas from what looks likeprobally started as rock chips
all original paint except front bumper is blue it has been replaced.
there is a small spot in the rear lower quarter that has a rust spot about the size of a dime on the driver side(not thru)will probally need small work
2 small spots in the corner of the driver side lower windshield
the car is otherwise rustfree top to bottom inside and out!!!
floor pan, ocker, ail pa, rop off', nner fender wells, rame rails , ow board, run, oor, ender, ll solid rust free
no twists in the roof or stress cracks in the body
the under side even has original paint and undercoat in most areas
its not often to see one this clean underneath there is only light surface rust in spots no thru rot/rust
it still has the original e-brake all intact
original space saver spare tire w/J-hook and wing nut
orig jack w/jack base/jack handle/bumper attachment/hold down bracket and wing nut
air canister/ hold down bracket is there
orig trunk mat
REAR WINDOW LOUVERS/BRA NOT INCLUDED
ADDITIONAL HISTORY ON HOW SPECIAL THIS CAR REALLY IS!!!!
The Pontiac W72 Engine: Some Codes and Numbers
By 1977, t must have seemed as though muscle cars were dead and gone in Detroit. The 455 Pontiac Trans Am was history. Chrysler’s 440 big block was checking out for the last time at year’s end and Chevrolet’s 454 was just a truck engine. For those who looked hard, erformance was still around. You just had to know your way around the option book. Pontiac for instance, ntroduced their new high performance engine package in 1977 Trans Ams, ormulas and select Can Ams. It was called the W72 high performance package.
What Pontiac did was create a new casting number for their 400 engine block and added some nice pieces to improve the engine. The W72 package engines were cast in Engine Plant 6 and assembled in Pontiac plant 9 which was a state of the art facility with precise machinery. Both were in Michigan. The builders were also trained with the latest in reliability and quality control standards. The engines weren’t hand assembled or blue printed, ut they were better than average castings with better tolerances.
The W72 engine had satin chrome finish valve covers, sed special 350 cid Pontiac cylinder heads with smaller combustion chambers to increase static compression ratio to about 8.2:1. The pistons also received chrome moly for upper compression rings instead of the regular cast iron rings the L78 400s got. W72s had unique camshaft grinds for automatic and manual transmission usage and their own distributor with better vacuum and mechanical advance timings. The oil pump was a 60 psi unit paired with a baffled oil pan to control violent surging against the walls during cornering which could leave the pump dry. The vibration dampner was unique, eighing a bit more than the standard L78 piece. One odd thing about W72 engines is they were all cast during the same one year period at the foundry. It doesn’t matter if your car was a 1979, 978 or 1977. The W72 engine used was cast between September 1976 and November 1977. The actual casting numbers changed for 1978 but the blocks were all cast at the same time. The unsold castings at the end of 1977 were used for selected 1978 and 1979 W72 cars only.
Production totals for W72 Firebirds aren’t accurate for 1978 due to flawed record keeping. It is known that 26,177 Firebirds had the option in 1977. For 1979, he W72 sales are mixed with L78 numbers and 1978 is harder still to figure out due to the bundling of W72 with WS6 suspension package through part of the calendar year. Eventually the W72 engine was made available separately. For a complete up to date accounting of actual W72 figures and more, ee John Witzke’s dossier on the package available at 78ta.com website. Witzke is a Pontiac Oakland Club International Judge and is a recognized W72 expert.
For 1978, ontiac improved the W72 by changing the specs on their camshafts. Essentially, hey added more duration and added 1:50 ratio rocker arms. The cams were also installed slightly retarded to spread the horsepower across a wider rpm range. In cam tests, he W72 grind was every bit as good as the fabled 067 Pontiac grind. Half way through 1978, he automatic transmission version of the engine was cancelled. In 1979, he W72 was heavily promoted as journalists lined up to test ride the last of the 400 powered Firebirds. Dealers experienced a rush on orders. The Trans Am and Formula bodies were given a facelift that year that carried them successfully to the end of their 12 year run. The new front end eliminated the grille and pushed all radiator ventilation under the one piece molded nose. An air dam and two turn signal lamp grilles fed cool air to the rad. The tail lamp system was given a dramatic black out treatment of the entire bezel under normal operation. When the brake lights went on, he whole deck lit up. It was sensational, lashy and ate light bulbs for breakfast, unch and dinner. The Tenth Anniversary Trans Am package was produced using a 403 Olds as the base mill and W72 TA motors with four speeds as the top mill. The W72 was the last Pontiac high performance car engine.
This option came out in 1977 to help people who were grieving the loss of the 455. With continued refinement it became sort of a legendary late 70's Trans Am feature, nd was temporarily combined with and absolutely required on 1977-79 400 4-speed Trans Ams. W72 engines gained a little extra horsepower through higher compression and a different cam. W72 is not an engine code, nd cars with W72 engines will have the L78 engine code. This causes a lot of confusion when looking at build sheets.
In 1978 the exhaust was also revised. Horsepower was rated at 200 in 1977 and 220 in 1978-79. In 1977-78, he factory ratchet shifters were fitted only to W72 automatic cars, hich also received 3.23 axles.
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