Most Valuable Technic LEGO Sets of the 1970s

The most valuable Technic LEGO sets from the 1970s by current market value. This list ranks 28 sets by current BrickPicker value, refreshed from live market data. Right now the top spot belongs to Bulldozer at $1,167. The top 5 alone account for about 65% of the value on this list. Every entry links to its full price history and marketplace listings. Updated 2026-07-22.

#	Name	Value	Growth	/ piece
1	Bulldozer Technic · 1979	$1,167	+3234%	$3.14
2	Tractor Technic · 1977	$975	+3151%	$3.07
3	Forklift Technic · 1979	$526	+1654%	$2.53
4	Auto Chassis Technic · 1978	$384	+552%	$0.64
5	12 Volt Motor Technic · 1979	$169	+746%	$7.69
6	Sky Copter Technic · 1978	$163	+288%	$0.45
7	Motorbike with Sidecar Technic · 1979	$146	+195%	$0.36
8	Car Chassis Technic · 1977	$134	+236%	$0.22
9	Parts Pack Technic · 1978	$120	+2300%	$1.54
10	Farm Tractor Technic · 1978	$114	+185%	$0.36
11	Blue Beams with Connector Pegs Technic · 1979	$110	+2100%	$2.89
12	Helicopter Technic · 1977	$104	+198%	$0.29
13	Two Gear Blocks Technic · 1978	$87	+344%	$1.13
14	Gear Wheels with Chain Links Technic · 1979	$81	+1703%	$0.93
15	Piston Parts Technic · 1979	$73	+1525%	$1.41
16	Steering Gear Parts Technic · 1979	$71	+1931%	$2.96
17	Mobile Crane Technic · 1979	$59	+20%	$0.11
18	Supplementary Set Technic · 1977	$58	+484%	$0.75
19	Mobile Crane Technic · 1978	$53	+9%	$0.10
20	Red Beams with Connector Pegs Technic · 1979	$50	+900%	$1.32
21	Technical Motor, 4.5V Technic · 1977	$45	+401%	$2.05
22	Power Pack Technic · 1978	$44	+94%	$1.99
23	Go-Kart Technic · 1978	$40	+81%	$0.19
24	Fork-Lift Truck Technic · 1977	$38	+54%	$0.18
25	Motor set Technic · 1977	$38	—	$0.96
26	Go-Kart Technic · 1978	$34	+76%	$0.17
27	Bulldozer Technic · 1979	$28	-19%	$0.08
28	Yellow Beams with Connector Pegs Technic · 1979	$26	+410%	$0.67