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.
1940 81-81
C Harry Danning 4.8
1B Babe Young 3.55
2B Tony Cuccinello -.65
SS Mickey Witek .55
3B Burgess Whitehead 1.4
LF Jo Jo Moore .65
CF Frank Demaree 1.45
RF Mel Ott 5.25
OF Johnny Rucker -.25
SS Billy Jurges 1.35
OF Bob Seeds .5
C Ken O’Dea .65
2B Al Glossop .45
SP Harry Gumbert 3.1
SP Hal Schumacher 4.5
SP Carl Hubbell 2.4
SP Bill Lohrman 1.45
SP Cliff Melton 0
-The first night game at the Polo Grounds; the Giants worst season since '26.
