- 100% brand new items, never used or installed.
- Upgraded steel engine cylinder head bolts & studs kit.
- Made by OEM approved manufacturers with materials that meets or exceeds strict OEM requirements.
- Manufactured from high quality chromoly steel with a black oxide finish for superior strength and durability.
- Direct bolt-on fitment or factory replacement for the stock head bolts.
- Threads rolled after heat treatment for optimum rating of 180,000 PSI tensile strength.
- Upgraded head studs helps prevents blown head gaskets and overheated engines.
- No installation guides are included, we highly recommend seeking professional installation.
Includes:
- 8 x Extended Studs
- 12 x Long Studs
- 4 x Medium Studs
- 8 x Short Studs
- 32 x Washers
- 32 x 12-Point Hex Nuts
Compatible/Replacement for:
- 1966-1970 Chevrolet 396 (6.5L) V8 Mark IV Big Block Engine
- 1970-1972 Chevrolet 402 (6.6L) V8 Mark IV Big Block Engine
- 1966-1969 Chevrolet 427 (7.0L) V8 Mark IV Big Block Engine
- 1970-1990 Chevrolet 454 (7.4L) V8 Mark IV Big Block Engine
- 1991-1995 Chevrolet 454 (7.4L) V8 Generation V Big Block Engine
- 1996-2000 Chevrolet 454 (7.4L) V8 Generation VI Big Block Engine