This Clymer repair and service manual covers 1968-1993 Volvo Stern Drive powerplants, including the following makes and models:VOLVO ENGINES - PUSHROD: AQ105A, AQ115A/B, AQ130C/D (4-cylinder)AQ165A, AQ170A/B/C (6-cylinder)VOLVO ENGINES - OVERHEAD CAM: AQ120B, AQ125A/B, AQ131A/B/C/D, AQ140A, AQ145A/B, AQ151A/B/C, AQ171A/C, 230, 250, 251 (4-cylinder)FORD ENGINES: 302 V8 (AQ190A)351W V8 (AQ240A)GENERAL MOTORS ENGINES: 229 V6 (AQ175A)262 V6 (AQ205, 430, 431, 432, 434)305 V8 (AQ200C/D/F, AQ211A, AQ225C/D/F, AQ231A, 500, 501)307 V8 (AQ200A/B, AQ225A/B)350 V8 (AQ225A/B, AQ260A, AQ271A/C, AQ280A, AQ290A, AQ311A/B, 570, 571, 572)454 V8 (740)STERN DRIVE MODELS: 200, 250, 270, 275, 280, 290, SP, Duoprop