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Truck Details
Owner Entered Information:
1991 GMC Syclone
Vin4: 1682
Vin: 1GDCT14Z4M8801682
Factory Color: Midnight Black/Matte Black (91 Sy)
Current Color: Midnight Black/Matte Black (91 Sy)
Build Date:
CD Player: No
Pictures: Click Here
Owner: Neil Jagg - Queens Village NY USA
Build Sheet Information:
Date on folder: (appears to be ship date)
Number on folder: (no idea what this number is)
Date on engine test results:
Date on Inspection Sheet: 1991-04-23
Prop Shaft: 101846
Engine: W910640142
Transmission: MY06109914
Transfer Case: C009024
Engine Sequence: 1691
Document Date (It appears this was a check list document): 1991-04-23
Sticker on the above document (ECM number): 102902
Engineering Sheet Date: 1991-04-08
Body Inspection Sheet Date:
Vehicle Receive Report Date: 1991-04-23
Vehicle Receive Report Item #: (We have no idea what this number is for)
Color according to Vehicle Receive Report:
Vehicle Shipping Report Date: 1991-04-24
1-2 Shift (RPM):
2-3 Shift (RPM):
Vehicle Shipping Report 3#: 55199 (We have no idea what this number is for)
GM Build Log:
Build Date: 1991-04-11
GM Final Ship:
Ship Date: 1991-04-24
ECM: 102902
Order Number:
Charge to Dealer:
Ship to Dealer:


Transaction Details
0000-00-00 Modification  77  Mike Bunks - Philedelphia PA USAIt Has A new Vortech Engine, a ultimate chip. A custom flowmaster exhaust. Dual Pillar Po gauges.  
0000-00-00 Buy  Mike Bunks - Philedelphia PA USA 
1992-06-10 Maintenance  1350  - Replace turbo. Rafferty GMC, Newtown Square, PA. 
2000-08-02 Modification  74000  - It is my friends truck. It has 74,000 on the body and 30,000 on a new vortech motor. It has Custom Flowmasters, a Ultimate Chip, 3-Bar Map Sensor, and will soon get a new turbo and downpipe.  
2015-08-14 Buy  78000  Neil Jagg - Queens Village NY USAI recently bought this Syclone in August 2015 with a blown head gasket. Below is a description of hte truck as it sit as of November 12th, 2016. 1991 GMC Syclone #1682 -4.3L Turbo AWD -79K miles -Exterior is 8.5/10 condition. Mostly original paint, from what i can tell it seems only the hood may have been repainted sometime in the past. Paint is in good to excellent condition with some flaws. -Interior is 8.5/10. There is some fading of the cloth seats which is almost impossible to avoid -Has not been driven in the rain or snow for at least the last 9 years -Both head gaskets and all upper engine gaskets recently redone, new radiator, new water pump, new knock sensor, new cap/rotor/spark plugs & wires, new ignition module, new fan and fan clutch, fresh oil and oil filter. New steering box and pitman arm. Wheel alignment recently done. All work has been done within the last 50 miles -fuel pump replaced by previous owner Modifications (some done by previous owner, some done by me). I have tried to keep the truck as factory stock as possible but some things were upgraded to address some weak points in the stock trucks. -Stock 4.3L block-balanced & blueprinted -Eagle connecting rods -JE Pistons -Lightly ported L35 cylinder heads -Crane Gold Race 1.5 roller rockers -CompCams 850 roller lifters -Adjustable fuel pressure regulator -Custom 3 inch exhaust with FlowMaster muffler/High Flow catalytic converter/Dual chrome tip -3 bar MAP sensor -TurboTweak/VeloSyTy chip custom tuned for the other modification on the truck. It has 2 fuel/spark maps. One map for pump gas, second map for 100 octane. Fuel & Spark settings tunable. Compatible with both factory narrowband or AEM wideband O2 sensors -Turbo to intercooler hard pipe with integrated blow off valve (stock is flex hose w/o BOV) -Optima yellow top battery -Accel ignition coil -ABS Deleted -High flow air filter -Taylor 8mm spark plug wires -Boost gauge and Dual Pillar gauge pod 
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