The Fel-Pro Cylinder Head Bolt Set (part number ES 74034) 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.
Specifications:
| Country of Origin | CN |
| Bolt Critical Length | 3.688" (Bolt 1); 2.938" (Bolt 2); 1.625" (Bolt 3) |
| Bolt Diameter | .438" (Bolt 1); .438" (Bolt 2); .438" (Bolt 3) |
| Bolt Head Size | .500" (Bolt 1); .500" (Bolt 2); .500" (Bolt 3) |
| Bolt Thread Length | 1.060" (Bolt 1); 1.000" (Bolt 2); 1.000" (Bolt 3) |
| Bolt Thread Pitch | 14 (Bolt 1); 14 (Bolt 2); 14 (Bolt 3) |
| 3390 | Premium |
| 9 | Hex |
| Thread Diameter | 0.438 |
| 4081 | No |
| Part Design or Feature or Use | Replacement recommended |
| Prop 65 Label (Yes/No) | No |
| 1572 | No |
Vehicle Fitment:
| Make | Model | Years | Engine |
| Chevrolet | Astro | 1985-2005 | 4.3L |
| Chevrolet | Blazer | 1995-2005 | 4.3L |
| Chevrolet | C10 | 1985-1986 | 4.3L |
| Chevrolet | C1500 | 1988-1998 | 4.3L |
| Chevrolet | C20 | 1985-1986 | 4.3L |
| Chevrolet | C2500 | 1988-1995 | 4.3L |
| Chevrolet | Caprice | 1985-1993 | 4.3L |
| Chevrolet | Commercial Chassis | 1992 | 4.3L |
| Chevrolet | El Camino | 1985-1987 | 4.3L |
| Chevrolet | Express 1500 | 1996-2014 | 4.3L |
| Chevrolet | Express 2500 | 1996-2006 | 4.3L |
| Chevrolet | G10 | 1985-1995 | 4.3L |
| Chevrolet | G20 | 1985-1995 | 4.3L |
| Chevrolet | G30 | 1985-1996 | 4.3L |
| Chevrolet | Impala | 1985 | 4.3L |
| Chevrolet | K10 | 1985-1986 | 4.3L |
| Chevrolet | K1500 | 1988-1998 | 4.3L |
| Chevrolet | K20 | 1985 | 4.3L |
| Chevrolet | K2500 | 1988-1995 | 4.3L |
| Chevrolet | Monte Carlo | 1985-1988 | 4.3L |
| Chevrolet | P30 | 1990-1999 | 4.3L |
| Chevrolet | R10 | 1987 | 4.3L |
| Chevrolet | R20 | 1987 | 4.3L |
| Chevrolet | S10 | 1988-2004 | 4.3L |
| Chevrolet | S10 Blazer | 1988-1994 | 4.3L |
| Chevrolet | Silverado 1500 | 1999-2013 | 4.3L |
| Chevrolet | Silverado 1500 Classic | 2007 | 4.3L |
| Chevrolet | V10 | 1987 | 4.3L |
| GMC | C1500 | 1985-1998 | 4.3L |
| GMC | C2500 | 1985-1995 | 4.3L |
| GMC | Caballero | 1985-1987 | 4.3L |
| GMC | G1500 | 1985-1995 | 4.3L |
| GMC | G2500 | 1985-1995 | 4.3L |
| GMC | G3500 | 1985-1996 | 4.3L |
| GMC | Jimmy | 1992-2005 | 4.3L |
| GMC | K1500 | 1985-1998 | 4.3L |
| GMC | K2500 | 1985-1995 | 4.3L |
| GMC | P3500 | 1990-1999 | 4.3L |
| GMC | R1500 | 1987 | 4.3L |
| GMC | R2500 | 1987 | 4.3L |
| GMC | S15 | 1988-1990 | 4.3L |
| GMC | S15 Jimmy | 1988-1991 | 4.3L |
| GMC | Safari | 1985-2005 | 4.3L |
| GMC | Savana 1500 | 1996-2014 | 4.3L |
| GMC | Savana 2500 | 1996-2006 | 4.3L |
| GMC | Savana 3500 | 1997-2002 | 4.3L |
| GMC | Sierra 1500 | 1999-2013 | 4.3L |
| GMC | Sierra 1500 Classic | 2007 | 4.3L |
| GMC | Sonoma | 1991-2004 | 4.3L |
| GMC | V1500 | 1987 | 4.3L |
| Isuzu | Hombre | 1997-2000 | 4.3L |
| Oldsmobile | Bravada | 1991-2001 | 4.3L |
| Pontiac | Bonneville | 1986 | 4.3L |
| Pontiac | Grand Prix | 1986-1987 | 4.3L |
| Pontiac | Parisienne | 1985-1986 | 4.3L |
| Workhorse | FasTrack FT931 | 2002-2003 | 4.3L |
Sold as a complete set.
Interchanges With: Victor Reinz 141004901, MMP 830466, Mahle GS33286, Corteco 27296, General Motors 10168525, General Motors 10168526, SB International 2201018, General Motors 10168527
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm.
