Year Make Model Configuration Positions Application Notes
<< < 21 22 23 24 25 26 27 28 29 30 > >>
1991 GMC C7000 Topkick V8 366 6.0L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G1500 V6 262 4.3L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G1500 V8 305 5.0L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G1500 V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G2500 V6 262 4.3L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G2500 V8 305 5.0L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G2500 V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G2500 V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G3500 V6 262 4.3L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G3500 V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G3500 V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC G3500 V8 454 7.4L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC Jimmy V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC Jimmy V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K1500 V6 262 4.3L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K1500 V8 305 5.0L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K1500 V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K1500 V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K2500 V6 262 4.3L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K2500 V8 305 5.0L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K2500 V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K2500 V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K2500 V8 454 7.4L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K3500 V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K3500 V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC K3500 V8 454 7.4L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC P3500 V6 262 4.3L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC P3500 V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC P3500 V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC P3500 V8 454 7.4L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC R1500 Suburban V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC R1500 Suburban V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC R2500 Suburban V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC R2500 Suburban V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC R2500 Suburban V8 454 7.4L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC R3500 V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC R3500 V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC R3500 V8 454 7.4L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC S15 Jimmy 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC Safari 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC Sonoma L4 151 2.5L (2474cc) 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC Sonoma V6 173 2.8L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC Sonoma V6 262 4.3L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC Syclone 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC V1500 Suburban V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC V1500 Suburban V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC V2500 Suburban V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC V2500 Suburban V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC V3500 V8 350 5.7L 1/2 In. x 20 Thread; 9/16 In. Head
1991 GMC V3500 V8 379 6.2L 1/2 In. x 20 Thread; 9/16 In. Head