Built 1991 GMC Syclone for Sale


Sep 14, 2006
Built Sy #1673 for sale.

1991 GMC Syclone
68,xxx original miles on truck

Stock 4.3 block outfitted with the following;
Ductile iron sleeves
TRW Turbo Pistons
Sealed Power Rings
Oliver H-beam Rods
Nitrated, Balanced, Polished stock crank
ARP Studs
Ported & Polished Vortec Heads
Crane turbo grind Roller Cam & Rockers
KB Headers
External Wastegate
KB Jimmy 2 turbo (Brand New)
KB Down Pipe
3” Borla Cat Back
KB Air-Air Intercooler
KB Billet Adjustable Fuel Pressure Regulator
KB Injectors
KB Boost a Pump
KB Spark plug Wires
New Cap, Rotor, & Plugs
KB Remote mount Battery Kit

Fresh John Waller built 700-R4
John Waller Modified KB Torque Converter
Dual B&M Trans coolers mounted between AC & Radiator
New Chain & Bearings in Transfer Case

PPG Base Coat/Clear Coat Black magic Paint (Body Disassembled for Paint)
All Body Lines & Cladding line-up
Polished stock wheels w/ Goodyear GSC Tires
No curb rash or bends of any kind in wheels
Bilstien Shocks
No Rust AT ALL – Never seen Winter

Triple gauge pillar w/ Autometer Boost & Pyrometer & PLX Wideband O2 Air/Fuel
Center mount custom gauge holder w/ Autometer Oil Pressure & Trans temp gauge
Same holder houses a Greddy Profec-B Boost controller & Turbo Timer
Built-in K-40 Radar Detector w/ separate front & Rear Detection
Code-alarm Alarm system w/ Keyless Entry, Remote starter, & SkyTracker
EL-Glow white face gauges
New Optima Red-top Battery
Stock ECU with Street Chip & Strip Chip

Extras that are included but not installed;
Brand New in the Box Accel Gen VI DFI w/ Harness
American Racing Forged ZR-1 Wheels. – 5 star 17x9 & 17x11 Wheels w/ BFG 275 & 315 Tires that are in need of replacement

Well Over 45,000 invested in this truck. The truck has everything shown above & is in great shape. It will, however, take some time playing with it to get everything dialed in just right - if you want it to run 10s. Unfortunately for me I can no longer have this truck. I need to sell it. The truck was listed for $21,500, It has been working it's way down & is now for Sale for $17,000 with everything or $16,500 without the extra wheels & tires & the DFI. Please email me at djstanke@zenithtechinc.com or call me at 414-704-2484.

I'm sure I'm forgetting alot but please email me if you have any questions

Serious Buyers only please,

Times & HP

The last time it was at a track was about 5-6 years ago.

1) It went 11.44. Since that time it got the Jimmy 2 turbo, the TC & the built tranny, however, it no longer has the high performance chip in it. It is probably a low to mid 12 second truck with 10 lbs of boost on it as it sits.

2) Never been on a dyno.

3) I will not take $14,000 for it.