The Apex Cylinder Head Bolt Set (part number AHB320) provides the torque-to-yield cylinder head bolts for 1985-2014 Chevrolet, GMC, Isuzu, and Oldsmobile vehicles with 4.3L engines. Head bolts stretch when torqued and should be replaced whenever the cylinder head is removed.
Vehicle Fitment:
| Make | Model | Years | Engine |
| Chevrolet | Astro | 1985-2005 | 4.3L V6 |
| Chevrolet | Blazer | 1995-2005 | 4.3L V6 |
| Chevrolet | C10 | 1985-1986 | 4.3L V6 |
| Chevrolet | C1500 | 1988-1998 | 4.3L V6 |
| Chevrolet | C20 | 1985-1986 | 4.3L V6 |
| Chevrolet | C2500 | 1988-1995 | 4.3L V6 |
| Chevrolet | Caprice | 1985-1993 | 4.3L V6 |
| Chevrolet | Commercial Chassis | 1992 | 4.3L V6 |
| Chevrolet | El Camino | 1985-1987 | 4.3L V6 |
| Chevrolet | Express 1500 | 1996-2014 | 4.3L V6 |
| Chevrolet | Express 2500 | 1996-2006 | 4.3L V6 |
| Chevrolet | G10 | 1985-1995 | 4.3L V6 |
| Chevrolet | G20 | 1985-1995 | 4.3L V6 |
| Chevrolet | G30 | 1985-1996 | 4.3L V6 |
| Chevrolet | Impala | 1985 | 4.3L V6 |
| Chevrolet | K10 | 1985-1986 | 4.3L V6 |
| Chevrolet | K1500 | 1988-1998 | 4.3L V6 |
| Chevrolet | K20 | 1985 | 4.3L V6 |
| Chevrolet | K2500 | 1988-1995 | 4.3L V6 |
| Chevrolet | Monte Carlo | 1985-1988 | 4.3L V6 |
| Chevrolet | P30 | 1990-1999 | 4.3L V6 |
| Chevrolet | R10 | 1987 | 4.3L V6 |
| Chevrolet | R20 | 1987-1988 | 4.3L V6 |
| Chevrolet | S10 | 1988-2004 | 4.3L V6 |
| Chevrolet | S10 Blazer | 1988-1994 | 4.3L V6 |
| Chevrolet | Silverado 1500 | 1999-2013 | 4.3L V6 |
| Chevrolet | Silverado 1500 Classic | 2007 | 4.3L V6 |
| Chevrolet | V10 | 1987 | 4.3L V6 |
| GMC | C1500 | 1985-1998 | 4.3L V6 |
| GMC | C2500 | 1985-1995 | 4.3L V6 |
| GMC | Caballero | 1985-1987 | 4.3L V6 |
| GMC | G1500 | 1985-1995 | 4.3L V6 |
| GMC | G2500 | 1985-1995 | 4.3L V6 |
| GMC | G3500 | 1985-1995 | 4.3L V6 |
| GMC | Jimmy | 1992-2001 | 4.3L V6 |
| GMC | K1500 | 1985-1998 | 4.3L V6 |
| GMC | K2500 | 1985-1995 | 4.3L V6 |
| GMC | P3500 | 1990-1999 | 4.3L V6 |
| GMC | R1500 | 1987 | 4.3L V6 |
| GMC | R2500 | 1987 | 4.3L V6 |
| GMC | S15 | 1988-1990 | 4.3L V6 |
| GMC | S15 Jimmy | 1988-1991 | 4.3L V6 |
| GMC | Safari | 1985-2005 | 4.3L V6 |
| GMC | Savana 1500 | 1996-2014 | 4.3L V6 |
| GMC | Savana 2500 | 1996-2006 | 4.3L V6 |
| GMC | Savana 3500 | 1997-2002 | 4.3L V6 |
| GMC | Sierra 1500 | 1999-2013 | 4.3L V6 |
| GMC | Sierra 1500 Classic | 2007 | 4.3L V6 |
| GMC | Sonoma | 1991-2004 | 4.3L V6 |
| GMC | Syclone | 1991 | 4.3L V6 |
| GMC | Typhoon | 1992-1993 | 4.3L V6 |
| GMC | V1500 | 1987 | 4.3L V6 |
| Isuzu | Hombre | 1997-2000 | 4.3L V6 |
| Oldsmobile | Bravada | 1991-2001 | 4.3L V6 |
| Pontiac | Bonneville | 1986 | 4.3L V6 |
| Pontiac | Grand Prix | 1986-1987 | 4.3L V6 |
| Pontiac | Parisienne | 1985-1986 | 4.3L V6 |
Interchanges With: Fel-Pro ES74034
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm.
