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1977 Pontiac Trans Am - Transam Borghini

Feel Like Gettin' Smokey? Year One Can Build You One.
By Ro McGonegal
Photography by Johnny Hunkins
1977 Pontiac Trans Am Front View
ENGINE
Type: GM Gen IV 7.0L (4.125 bore x 4.00 stroke)
Block: GM LS7 block
Compression ratio: 11.0:1
Oiling: dry sump system, 8-quart reservoir
(modified by Year One)
Rotating assembly: GM 4.00-inch stroke
forged steel crankshaft, titanium connecting rods,
GMPP forged pistons
Cylinder heads: CNC-ported, 70cc combustion
chambers, 12-degree valve angle,
2.20-inch titanium intake valves, 1.61-inch
sodium-filled exhaust valves
Camshaft: Katech Torquer LS-7, .615/.648-inch lift,
220/244 degrees duration at .050-inch,
110-degree LSA, GM timing gear
Valvetrain: hydraulic roller lifters, pushrods,
1.8:1 roller rocker arms (intake side offset)
Induction: LS7 composite intake manifold,
Holley 90mm throttle body,
MSD engine management system
with Delphi MEFI-4 ECM, Year One
fabricated cold-air box, K&N filter,
functional shaker hood,
dual Walbro in-tank fuel pumps
Power adder: none
Ignition: MSD ECM-driven coil-near-plug
Exhaust: custom-built by Jeff Georges,
Stainless Works stainless steel pipes
(developed by Year One), 2-inch primaries,
3-inch collectors, Magnaflow 3-inch
stainless steel system w/ X-pipe,
Year One stainless steel splitters
Fasteners: Industrial Depot
Built by: GM Performance Parts

DRIVETRAIN
Transmission: Tremec TKO-600 5-speed,
Pro-Motion short-throw shifter,
Ram dual-disc clutch assembly,
Pro-Motion hydraulic linkage
Driveshaft: Precision Shaft Technologies
Rear axle: Moser 12-bolt, 33-spline axle shafts,
limited-slip differential, 3.73:1 gearset,
aluminum differential cover

CHASSIS
Front suspension: Jim Meyer Racing tubular
subframe, tubular upper and lower control arms
w/Heim joints, Alston Vari-Shock billet aluminum
coilover shocks, Year One frame connectors
Rear suspension: Detroit Speed & Engineering
four-link (modified by Year One
for second-gen chassis),
adjustable tubular links,
adjustable tubular Panhard rod,
Koni adjustable coilover shocks
Brakes: Baer 6-piston calipers
and 2-piece 14-inch rotors,
Hydro-Boost power assist unit

WHEELS &TIRES
Wheels: Year One Billet Snowflake
18x10, front; 18x12, rear
Tires: Michelin Pilot Sport 285/35ZR18 front;
335/30ZR18 rear


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