1966
4 engine options
GMC 1000 Series
7 generations · 25 engine options · data across all years of the 1000 Series platform.
11,523
Labor times
3,406
Torque specs
0
DTC codes
0
Repair procedures
175
Fluid specs
0
Open recalls
5-Year Cost of Ownership · 1966 261ci I6
$6,549
~$1,310/yr maintenance labor at $150/hr. Other engines/years vary — pick a generation below to see its breakdown.
Generations & engine options
1965
4 engine options
1964
4 engine options
1963
4 engine options
1962
3 engine options
1961
3 engine options
1960
3 engine options
Become a Founding Sponsor
Your name on every GMC 1000 Series procedure
For $99, we generate the full step-by-step repair set for the 1966 261ci I6 — free for everyone, forever, with your name on it.