Chevrolet Corvette C3 group 3 (1968)
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Home » Racing Sports Cars » Chevrolet Corvette C3

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C3 Registry
Facts
Greenwood history

Specifications

12 units built (IMSA Greenwood)
Click here and here and here
Click here and here 350
Click here 327
Click here and here and here for ZL1 aluminium 427 engine
Click here and here and here for 454
Click here for IMSA Greenwood Corvette

Homologation number: 583 (427), 3039 (LS6 454)
Homologation start: 1/1/1968 (427), 1/6/1971

V8 5735 cc | 350.0 cu in. | 5.7 L.
250 HP (184 KW) @ 5200 RPM

Chevrolet Big Block gen. II 427 L88, V8 (90o) cyl, 4 stroke, petrol engine
6992cc, 107.95 x 95.5 mm
12.5:1
Factory: 430 hp (320 kW)
550 bhp (410 kw) @ 6200 rpm
637 nm / 470 ft lbs @ 5200 rpm
cast iron block, aluminium alloy heads
OHV, 2 Valves per Cyl - 8 valves total. 2.19" intake and 1.84" exhaust valves
aspiration, natural with 1 x 4 barrel Holley 850 CFM
firing order, 1-8-4-3-6-5-7-2, left bank 1-3-5-7, right bank 2-4-6-8
water cooled
dry sump

Greenwood 427
V8 7000 cc | 427.2 cu in. | 7.0 L.
625 BHP (460 KW) @ 7200 RPM
550 Ft-Lbs (746 NM)

Chevrolet Big Block gen. II 427 ZL1, V8 (90o) cyl, 4 stroke, petrol engine
6992cc, 107.95 x 95.2 mm
12.5:1
585 bhp / 436 KW
cast-aluminium block and head
OHV, 2 Valves per Cyl - 8 valves total. 2.19" intake and 1.84" exhaust valves
aspiration, natural with 1 x Holley 850 CFM Carburettor
firing order, 1-8-4-3-6-5-7-2, left bank 1-3-5-7, right bank 2-4-6-8
water cooled
dry sump

Chevrolet Big Block gen. II 454, V8 (90o) cyl, 4 stroke, petrol engine, click here and here
7439cc, 107.95 x 101.6 mm
LS5: 390 hp (291 kW), 500 lb·ft (680 N·m)
LS6: 450 hp (340 kW)
LS7: 465 hp (347 kW), 610 lb·ft (830 N·m)

494ci, V8 (90o) cyl, 4 stroke, petrol engine

Muncie M-22 4-Speed Manual gearbox
2.20:1, 1.64:1, 1.27:1, 1.00:1
final drive, 3.36/1, 3.08/1, 3.55/1
Fibreglass bodyshell over Steel Network Frame chassis
front suspension double wishbones, coil springs over telescopic shock absorbers, anti-roll bar
rear suspension swing axles with lower links, trailing arms, transverse semi-elliptic leaf springs, telescopic shock absorbers
power assisted recirculating ball steering
vented discs, all-round
Length 4,636 mm (182.5 in)
Width 1,753 mm (69 in)
Height 1,214 mm (47.8 in)
Wheelbase 2,489 mm (98 in)
Track (fr/r) 1,481 mm (58.3 in) / 1,499 mm (59 in)
wheels Greenwood IMSA: front 12x16", rear 14x16"
1300kg


Results in WSCC

Season
Group 3 classification is noted in brackets
427ci engine
Car entry Car number/ result
Dayt Sebring Brands Hatch Monza Targa Florio Nurb Spa Watkis Glen Zeltweg Le Man
Team 24h 12h 6h 1000km 1000km 1000km 6h 500km 24h
DX Sunray Oil Co (443) #29, 25th (4th)
DX Sunray Oil Co (443) #30, 27th (5th)
DX Sunray Oil Co #2, eng ine #9, dnf #1, in entry list
DX Sunray Oil Co #3, 6th (4th) #62, in entry list #2, in entry list
DX Sunray Oil Co #4, drive shaft
American International Racing, 194678S405175 #44, 29th (6th)
American International Racing, 194378S405120 #45, eng ine in entry list
Bud Gates/ Bill Fuller in entry list
Robert Johnson/ Bob Johnson (Convertible) #12, 11th (2nd)
Scuderia Filipinetti, 194378S410300 #3, head gasket
Scuderia Filipinetti, 194378S408067 #4, acci dent
Scuderia Filipinetti #7, in entry list
Piggins Chevrolet #3, in entry list
Piggins Chevrolet #4, in entry list
Luxembourg #5, in entry list
Total points
6
1 5
Statistics
Starts/finishes 11/6 5/4 3/1 1/1 2/0
Driver Team entries and car number
DX Sunray Oil Co
Peter Revson 29
Don Yenko 29 2 9, 62
Jerry Thompson 30 4
Tony DeLorenzo 30 4
Dave Morgan 3 9
Pedro Rodriguez 2
Hap Sharp 3
John Bushell 62
American International Racing
Dick Guldstrand 44
Ed Leslie 44
Scooter Patrick 44, 45
Dave Jordan 44, 45
Herb Caplan 45 +
Scuderia Filipinetti
Henri Greder 3
Umberto Maglioli 3
Sylvain Garant 4
Jean-Michel Giorgi 4
Herbert Müller 7
Jean Guichet 7
Luxembourg
Chris Tuerlinckx 5
Nicolas Koob 5

60.jpg Source
Or Constanzo at Sebring '69
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Corvette Greenwood
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Drawings

Chassis

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J56 front brake

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