By the Numbers

1972 Buick Gran Sport
Jeff Peoples, 44 • Madison, MS


Type: Buick 462ci big-block
Block: factory 455 block, bored to 4.342 inches
Oiling: TA Performance pump, stock tank with custom baffles
Rotating assembly: stock 3.900-inch crank and rods; Sealed Power 10.2:1 forged pistons
Cylinder heads: TA Performance Stage 2 aluminum castings with 2.130/1.755-inch valves ported to flow 320/240 cfm
Camshaft: TA Performance 232/232-at-.050 hydraulic flat-tappet; .515/.515-inch lift; 110-degree lobe-separation angle
Valvetrain: TA Performance lifters, double-roller timing set, pushrods, and 1.65:1 roller rockers
Induction: TA Performance SP1 single-plane intake manifold, FAST 1,000-cfm throttle body
Fuel system: FAST EZ-EFI engine management system, 88 lb/hr injectors, fuel rails, and pressure regulator
Ignition: stock HEI distributor; MSD coil and plug wires
Exhaust: TA Performance 2-inch long-tube headers, Dr. Gas 2.5-inch X-pipe, dual Hooker mufflers
Cooling: Alumitech radiator, TA Performance water pump, dual electric fans
Built by: Modena Motorsports (Scottsdale, AZ)


Transmission: California Performance Transmissions 200-4R overdrive and 2,600-stall converter; B&M Stealth shifter
Rear axle: GM 10-bolt rearend with Moser 30-spline axles, 3.73:1 gears, Detroit Truetrac differential, and TA girdle


Front suspension: Savitske control arms, lowering springs, and bushings; Chassisworks double-adjustable shocks, Spohn sway bar, Lee Performance, 12.7:1 steering box
Rear suspension: Savitske springs, Chassisworks double-adjustable shocks, CurreTrac billet aluminum control arms, UMI relocation brackets, Spohn sway bar
Brakes: DBA 12.8-inch rotors and two-piston C5 Corvette calipers, front; DBA 13-inch rotors and C6 Corvette calipers, rear

Wheels & Tires

Wheels: Voxx Misano 17x8 (5-inch backspacing), front; 18x9.5 (6-inch backspacing), rear
Tires: Nitto NT05 255/40R17, front; 295/35R18, rear