Big block engines increased from 427 to 454 cubic inches and the powerful 370 hp LT1 small block engine made its debut. Sales were their lowest since 1962 due to a late start in the production year. The first ZR1 performance package appeared in 1970 (not 1990, as some might believe) and included the LT1 engine and a host of other performance items.

1970 Corvette Options

RPO#	DESCRIPTION	QUANTITY	$ RETAIL
19437	Base Corvette Sport Coupe	10,668	5,192
19467	Base Corvette Convertible	6,648	4,849
n/a	Custom Interior Trim	3,191	158
A31	Power Windows	4,813	63
A85	Custom Shoulder Belts (std with Coupe)	475	42
C07	Auxillary Hardtop (convertible only)	2,556	273
C08	Vinyl Covering (for Auxillary Hardtop)	832	63
C50	Rear Window Defroster	1,281	36
C60	Air Conditioning	6,659	447
G81	Optional Rear Axle Ratio	2,862	12
J50	Power Brakes	8,984	47
L46	350ci, 350hp Engine	4,910	158
LS5	454ci, 390hp Engine	4,473	289
LT1	350ci, 370hp Engine	1,287	447
M21	4-Speed Manual Transmission, close ratio	4,383	0
M22	4-Speed Manual Transmission, close ratio, hvy dty	25	95
M40	Turbo Hydra-Matic Automatic Transmission	5,102	0
N37	Tilt-Telescopic Steering Column	5,803	84
N40	Power Steering	11,907	105
P02	Deluxe Wheel Covers	3,467	57
PT7	F70x15 White Stripe Tires, Nylon	6,589	31
PU9	F70x15 White Letter Tires, Nylon	7,985	33
T60	Heavy Duty Battery (std with LS5 engine)	165	15
UA6	Alarm System	6,727	31
U69	AM-FM Radio	14,529	172
U79	AM-FM Stereo Radio	2,462	278
ZR1	Special Purpose Engine Package	25	968

1970 Corvette Exterior Color Choices

CODE	EXTERIOR	QUANTITY
972	Classic White	n/a
974	Monza Red	n/a
975	Marlboro Maroon	n/a
976	Mulsanne Blue	n/a
979	Bridgehampton Blue	n/a
982	Donnybrooke Green	n/a
984	Daytona Yellow	n/a
986	Cortez Silver	n/a
991	Ontario Orange	n/a
992	Laguna Gray	n/a
993	Corvette Bronze	n/a

1970 Corvette Interior Color Choices

CODE	COLOR
400	Black Vinyl
403	Black Leather
407	Red Vinyl
411	Blue Vinyl
414	Brown Vinyl
418	Saddle Vinyl
422	Green Vinyl
424	Saddle Leather