'71 Chevy Vega GT Street/Drag Race Car

1971 Chevrolet Vega Hatch Back Description

'71 Chevy Vega GT Street/Drag Race Car

Body:

The engine, transmission, firewall, floor, dashboard, steering, foot controls and seats have been moved back 16”. The entire rear floor was removed and replaced with aluminum panels and widened wheel tubs. The battery is in the trunk. The inner front fender panels were partly removed and lightened. The hood is fiberglass with a functional cowl induction air scoop. Both doors have been lightened. The right side door window mechanism was removed. The heater and windshield wiper mechanisms were removed. Plexiglass windows were installed. The car's total weight is 2320 lbs. The weight distribution (front/rear) is 49.5/ 50.5. Rear signal and brake lights operate sequentially. The paint scheme is Mid 70's /w patina :-).

Interior:

Color – Black

Gauges – all Stock + O2 Sensor, Oil Pressure, Water Temperature, Amp. Meter

Rear seat has been removed

Bucket Seats

New Black Carpet

Engine:

355 cu. in., four bolt main, 1971 Chevrolet V8 with TRW forged aluminum10:1 pistons - Steel Crankshaft - Summit Stage II connecting rods - Milodon deep sump oil pan - high volume oil pump w/ welded pickup

Ported & port matched, polished ProMaxx aluminum heads w/ ARP 7/16” screw-in rocker studs, Competition Cams Roller Valve Springs (1.500” diam.) - Hooker Long Tube Headers

Chet Herbert Mechanical Roller Cam Shaft, 242 deg. Duration (In. & Ex.) @ 0.050” and 0.550” lift - Harland Sharp roller rockers - Cloyes True Roller timing chain - Iskenderian Chrome Moly Tubular Pushrods and Guide Plates

Holly 750 Mechanical Double Pumper w/ ProForm main body is mounted on a 1” Plastic Carburetor Spacer and a port matched, dual plane Edelbrock Air Gap Performer RPM intake manifold. A Holley pusher electric fuel pump is mounted near the fuel tank.

MSD-6A Multiple Spark Discharge Ignition and coil are mounted inside the cabin, away from engine heat

Pre '75 car – NO SMOG TEST REQUIRED

Transmission:

1984 Chevrolet, three speed Turbo-Hydrornatic 350, /w B&M full Competition Trans-pak Shift Kit - Hurst Line Lock – Hurst Dual Gated MegaShifter - B&M Holeshot 2400 torque converter with a 2,200 rpm stall speed - Derale Transmission Pan - TCI Transmission cooler mounted in the rear

Third Member:

Narrowed '69 Ford 9" 3rd member /w a 3.73 Track Lock differential - shortened 31 splined axles - Shortened and balanced drive shaft /w Safety Loop

Chassis:

The unitized frame has been reinforced with a tubular sub-frame connector from the transmission mounts back to the rear bumper. The car has been back halfed and tubbed. Strange adjustable coil-over shocks and Alston ladder bars hold the third member in place. There are 40/60 adjustable drag shocks and V8 Vega springs up front.

The Front tires are Michelin XZX 165SR15 mounted on 3.5"x15" Weld Racing Draglite wheels. New rear tires are 29”x15.00"-R15LT Mickey Thompson Sportsmans S/R Radials mounted on 12"x15" Draglites.

Miscellaneous items that go with the car:

Complete front wheel hubs w/ brake rotors and calipers

New Tie Rods /w new ends

Spare Left and Right Doors (complete)

Spare Rear Hatch Door (complete) + extra window glass

A pair of Hoosier Racing tires mounted on aluminum wheels

A pair of magnesium, skinny Front Wheels

Aluminum, single plane, four barrel Intake Manifold

Several Engine Air Cleaners

Books, Records and Receipts

Various Interior pieces (rear seat, bucket seat back)

Specifications:

Car is fully licensed, has current CA Registration and is street legal

Make: Chevrolet

Model: Vega GT

Model Year: 1971

Mileage: 26,835 mi.

VIN: 141771U220695

Suggested Use: Street & Drag Strip

Vehicle Weight: 2320 lbs

Transmission Type: Turbo 350 Automatic /w B&M Shift Kit

Tire Sizes: 165 SR-15 F, 29-15.50x15 R

Engine Brand: Chevrolet

Engine Size: 355 C.I.

Compression Ratio: 10:1

Vacuum at Idle: 15 in mg

Camshaft Type: Mechanical Roller

RPM Range: 3500 rpm – 6500 rpm

Cam Specs @ 0.050” lift:

• In. Duration: 242 deg.

• In. Lift: 0.550"

• Ex. Duration: 242 deg.

• Ex. Lift: 0.550"

• Lobe Sep: 112 deg.

Rocker Arm Type: Roller

Rocker Arm Ratio: 1.5 to 1

Carburetor Type: 750 cf/m Holley Double Pumper w/ mechanical secondaries

Carburetor List Number: 4150, Part Number: 0-4777

Intake Manifold: Port Matched Edelbrock Air Gap performer RPM

Header Type: Long Tube

Header Tube Size: 1-5/8" into a 3" Collector

Cylinder Head Type: Ported Aluminum ProMax 200 SB Chevy

Estimated Horsepower: 420 HP

Converter Stall: 2200 RPM

Rear End Ratio: 3.73 (Track-Lock)

Past level of performance: 12.2 sec @ 113 mph

Predicted level of performance (after recent modifications): 11.5 sec @ 120 mph