1970 Chevy Corvette Historic Race Car SCCA/Trans Am/IMSA GT
New for 2008:stahl headers, wheels, tires, passenger seat, front air dam. New pictures soon. Selling price includes two engines a 377ci small block 700hp/600tq dry sump(15hrs), 355ci 560hp/500tq(15 races).Car received a new paint job in January 2006 and is now dark blue with the 07 number and has a passenger seat. It is easy to drive and maintain, running a 2:27 at Road America in the fall of 2006. New pictures are in the photo section. This car has a distinguished and unbroken history of SCCA club and pro racing including Trans Am and IMSA GT. The history is supported by five SCCA Log Books (#18-335 LOL Region) dating back to 1971. Additional documentation includes over 50 original race grid sheets/event programs, 1971 to current. The car has run in Regional and National SCCA B production races, the Camel GT IMSA Series, and Trans Am Races. The car has a complete ownership chain having only four owners since 1970. The car has a modern Wilwood 6 piston calipers with Wilwood hats and rotors in the front. Stock J-56 GM front brakes moved to the rear axle. The front calipers moved to the rear of the disc to accommodate the cooling ducts. Wilwood 1" bore non-power duel master cylinder
Serial Number: 1970 V.I.N. # 194670S415074
Location: Chicago, IL
Frame Number: 1970 SCCA Roll cage # 18-335
Logbook: SCCA 18-335
Custom fabricated front caliper brackets with cooling plates
4-3" diameter front brake cooling ducts
Front/rear Bias adjusters also installed in the car.
In 1970, this Corvette Roadster was built by Henry Gomez, Roy Boone, Darwin Bosell, and John Biza, owner of John's Corvette Shop in St Paul Park, Minnesota. In 1971, owner/driver John Biza began racing his newly completed Corvette Roadster. John held wheel-to-wheel competition licenses in F.I.A., I.M.S.A., and S.C.C.A. (S.C.C.A. Car Log book #18-335 car #12). John competed in many regional and national Trans-Am races such as, the Un-Cola Nationals, Pepsi Trans-Arn Nationals, and 7-UP S.C.C.A. Trans-American Championship. During his time behind the wheel in the 70's, his competitors included drivers like Hurley Haywood and Greg Pickett.
In 1976, the Corvette was purchased by Darwin Bosell, of Cedar, Minnesota. Darwin, a former crew member of John's Corvette Shop Racing Team, also competed in S.C.C.A. Trans-Am and Camel GT I.M.S.A. Series, Car #25. During this period, the Corvette underwent a transformation to make it more competitive in the ever-progressing racing world. In 1978, the car was rebodied into a hardtop/couple configuration with the 1978 Corvette Pace Car paint scheme, and was no longer a roadster.
With the popularity of the sport at or near its pinnacle, Darwin competed against a long list ofwell accomplished world famous drivers; such as, Paul Newman, David Hobbs, Rick Mears, Lynn St.James, and Willy T. Ribbs, just to name a few. The car raced with Darwin at the controls from 1976 to 1989 with many top finishes to his acclaim. This was a respectable accomplishment considering the factory and corporate involvement in the sport during the periood; i.e., Paul Newman and the Datsun/Coca-Cola Racing Team. In 1989, Darwin retired the car, and it was placed in storage. Accompanying photos show the car as campaigned by Biza in 1972 and 1975 and in 1984 with IMSA GT bodywork as campaigned by Bosell.
In 1994, Jack Beckman, also from Minnesota, purchased the old I.M.S.A car. With the help of Darwin Bosell, old photographs, and the original body parts, Jack was able to return the racecar to a roadster. Jack raced the car in many vintage events sanctioned by V.S.C.D.A., V.S.C.R., and R.M.V.R. After five years ofvintage racing, Jack sold the 1970 Corvette Roadster to the current owners in December of 1999. The car was then completely disassembled, the frame was checked for straightness and painted, and the original G.M. J-56 brake system was located and installed.
In 2001 it received the S. V .R.A medallion as a certified historic race car and has been running vintage race events with S. V.R.A., V.S.C.D.A. and Midwestern Council of Sports Car Clubs since April 2000. The dash board and fire wall are signed by former driver Darwin Bosell.
Car Sponsors During The 1970's
John's Corvette Shop - St. Paul Park, MN.
Jay Kline Chevrolet Minneapolis, MN.
Kramer Tire Minneapolis, MN.
Cat Oil Racing Minneapolis, MN.
Recent Competition History
Donnybrook Raceway regional track record holder (May 14, 1972)
Received SVRA Medallion # 6-410 in 2001
Vintage Motorsport Magazines--Pick of the Liter-- Brian Redman International Challenge 2002
Recipient of Road and Track Magazines KRIEGER award, BRIC 2003
Corvette Fever Magazines featured car at BRIC 2003
Click on the links below. Use your browser's BACK button to return.
- Class: V/H - Group 10/6
- Weight: 2950 lbs
- Track: Road America
- Engine Builder: American Speed
- Manufacturer: Chevy
- Type: Road Race Motor
- Displacement: 377 cid. Approx 13:1
- Horsepower: 700HP @ 6,900rpm
- Torque: 600ft/#'s torque @ 4,900 rpm
- Induction: 750 Holley
- Heads: AFR
- Block: Dart
- Main Caps: 4-bolt
- Connecting Rods: H-Beam Connecting Rods,ARP bolts
- Camshaft: Comp
- Valve Train: Zero Tolerance Valve Springs, Ti Retainers,Jesel Shaft rock
- Clutch: Quarter master 7.25
- Flywheel: Fluidampr- Harmonic Damper 7 1/4
- Exhaust: Stahl sidepipe headers new 2008
- Total Time: Approx 15 hours
- Races: none
- Dry sump
- Fuel Cell
- Manufacturer: ATL
- Capacity: 32 Gallon
- Fuel Pump: Holley blue fuel pump, regulator
- Fuel Type: JAZZ Billet Aluminum fuel filter
- Radiator: Griffin Aluminum Racing Radiator 19x24in
- Water Rad Location: Front , 12 volt Cooling Fan. 15 in Dia
- Water Pump: G.M. Aluminum Water Pump
- Oil Cooler: Hayden Remote Oil Cooler, Melling Race Oil Pump
- Oil Cooler Location: System 1. Oil Filter System
- Ignition: MSD 6AL Ignition Box w/limiter, Pro Billet Distributor, Coil
- Alternator: NASCAR Mini Alternator,Powermaster Aluminum Mini Starter
- Battery: Napa Orbital Dry Cell Battery
- Data Logger: AMB - Identification & Timing Transponder
- Manfacturer: AGC
- Gears: 4
- Shifter: Hurst Super-Shifter with custom aluminum linkage and heims
- Trans Cooler: no
- Races: 15 hours
- Rollerized 1st gear, Billet Mid-plate,nTorque lock sliders, Billet Aluminum shifter
- Manufacturer: G.M. rear end
- Type: G.M.
- Cooler: No
- Ratio: 3.70 gears
- Differential: G.M.
- Axles: G.M.
- G.M. H.D. drive shaft
- Construction: G.M. Rear bodywork (removable in 60 secs) with original ZL-1 flares
- Color: Dark Blue
- Paint: Base/clear - PPG Paint products
- Condition: New Paint
- Removable Front bodywork with ZL-1 flares, L-88 Lightweight Hood
- Type: G.M. Frame/Complete Roll Cage
- Condition: Excellent
- Front Suspension: G.M. soild bushings
- Rear Suspension: G.M. 400# 5-leaf spring, Custom HD tailing arms,HD heimed camber rods
- Shocks: Monroe Formula XP Shocks
- Brakes: (see above) Hawk Blue Pads, Speedway bias,
- Steering: Sweet steering joint G.M. box
- Wheels: 15x10 American Racing Torque Thrust,
- Tires: Hoosier 245 x 45 x 15 Front, 26.5 x 9.5 x 15 Rear
- Material: Aluminum Brake, Clutch, and Gas Pedals
- Fire System: Fire extinguisher mounted in car
- Restraints: (2)Kirkey racing seat, restraints new 2007
- Guages: Accutech Oil Temp Pres, Water Temp, Fuel Pres, Amps, Tach
- Steering Wheel: Removable 3 spoke steering wheel
- Condition: 5-Panel wink mirror, Drivers side mirror
- 355ci period correct group 6 legal small block, complete
- 1 set Hooker headers
- 4(15x8.5) American Racing Touqe Thrust
- Car cover
- 1974 small block hood
- PRINTING SPECS
| Race Cars For Sale
| New Listings
| Sell Your Car |
| Parts For Sale
| Parts Wanted
| Open Forum
| Site Search
| Marque Ref
| Marque links
| Currency |