My WAR calculation is a combination of Baseball-reference and Clay Davenport; I believe it to be the "best" WAR number available for historical comparison. 8 WAR is an MVP quality season. The record is pythagorean adjusted for 162 games.
1982 – 79-83
C Milt May 2.1
1B Reggie Smith 2.65
2B Joe Morgan 5.15
SS Johnnie LeMaster -2.05
3B Tom O Malley .65
LF Jeffrey Leonard -.35
CF Chili Davis 2.3
RF Jack Clark 4.25
3B Darrell Evans 2.45
LF Jim Wohlford .55
2B Duane Kuiper .4
C Bob Brenly 1.2
LF Champ Summers -.15
1B Dave Bergman .7
LF Max Venable -.2
SS Guy Sularz 0
SP Bill Laskey 4.1
SP Atlee Hammaker .95
SP Rich Gale .7
SP Renie Martin -.8
RP Greg Minton 6.65
RP Fred Breining 2.45
RP Al Holland 1.2
RP Jim Barr 2
RP Gary Lavelle 3.3
-The Centennial Giants had a sub .500 pythag but still wound up in a pennant race, getting bounced in the final weekend before a Joe Morgan homer eliminated the Dodgers in what was, to that date, my high water mark as a Giants fan. A hundred years into franchise history 47 men had 20 WAR. Johnnie LeMaster. Jesus - he felt like the worst player in baseball back then, and the metrics confirm it, he's at about 2300 PA right now (with 1100 still to come) and 3 runs below replacement level. New manager, new GM - doesn't matter, keep sticking LeMaster in the lineup. Why have 8 guys who can possibly get a hit when you could just have 7?