Chaparral 2D Chevrolet group 6 (1966)

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+ Show Chaparral cars development

Year	Model Engine	Photo
1967	Chaparral 2F Chevrolet 7.0
1966	Chaparral 2D Chevrolet 5.4
1963	Chaparral 2A Chevrolet 5.4
1962	Chaparral 1 Chevrolet 5.2

Specifications

2 units built, both converted from Chaparral 2A, 1 converted to Chaparral 2F
Click here for Chevrolet 327

Chevrolet Small Block gen. I 327

Analytical specifications and drawings

V8 (90^o) cylinder
5354cc capacity
OHV with 2 valves per cylinder
Natural aspiration with 4 x Weber 48 IDM Carburetors
Power output, 420 bhp / 313 KW @ 6800 rpm
Torque,

Chevrolet Big Block Mark IV 427, V8 (90^o) cyl, 4 stroke, petrol engine. Click here
6992cc, 107.95 x 95.5 mm
11.0:1
525 bhp / 392 KW @ 6000 rpm
460 lb·ft (620 N·m) @ 5200 rpm
cast iron Block with 248.9mm deck height and 123mm bore spacing, aluminium alloy head
forged premium alloy 5140 steel crankshaft with 5 main bearings, 70mm diameter
Moraine M400 aluminum plain main bearings
connecting rod length between centers 155.8mm
side camshaft with overhead valves (OHV). 2 valves / cylinder - 16 valves total
aspiration: natural with 4 Weber 58 IDM Carburetors
firing order: 1-8-4-3-6-5-7-2
water cooled
dry sump

Chaparral 6 speed automatic gearbox
fibreglass reinforced body on fibreglass monocoque with steel reinforcements chassis
Front suspension double wishbones, coil springs over dampers, anti-roll bar
Rear suspension reversed lower wishbones, single top links, twin trailing arms, coil springs over dampers, anti-roll bar
rack-and-pinion steering
discs, all-round
Length 4013 mm (158")
Width 1727 mm (68")
Height 1003 mm (39.5")
Wheelbase 2311 mm (91")
Track (fr/r) 1422 mm (56") / 1346 mm (53")
925kg

Results in WSCC

Season


Car entry, chassis number	Car number/ result
	Dayt	Sebring	Monza	Targa Florio	Spa	Nurb	Le Man	Mugelo	CdE	Hock	Montagna	Nurb	Zeltweg
Team	24h	12h	1000km		1000km	1000km	24h				Hill climb	500km	500km
Chaparral Cars Inc., 2A-001 -> 2D001 (427)	#65, wheel	#12, oil leak			#2, in entry list	#7, 1st
Chaparral Cars Inc., 2A-001 -> 2D001 (327)							#9, gene rator
Chaparral Cars Inc., 2A-002 -> 2D002 (427)		#11, rear suspe nsion

Total points 10						10
Statistics
Works Starts/finishes 5/1	1/0	2/0				1/1	1/0
Driver	Team entries and car number
Chaparral Cars Inc.
Jo Bonnier	65	12				7	9
Phil Hill	65	12			2	7	9
Hap Sharp		11
Jim Hall		11			2