Header bolt length

[1Hondalover]

Does anyone know how deep the exhaust manifold bolt holes are in 1996 351 heads? The Bassani headers will be going on soon and I'm going to use Stage 8 locking bolts. Stage 8 says to use 3/4" long bolts, even though the header flanges are 3/8" thick plus the gasket.

Less than 3/8" of threads in the head doesn't sound too cool to me.....anybody know?

[VintageIronFab]

ok so in my 95 F150 (which has the same roller 5.8 as your bronco) the header bolt depth is 13/16" - I pulled some header bolts which look normal length to me had a total thread length of 3/4". So if you could find 1" long header bolts you would get just a tad more length-- that would still put the bolt into the head 5/8" vs. 3/8" -- lets face it a little length is a good thing I just bought a set of the Bassani headers today as well - mine are for a Lightning 5.8 but I am guessing the flanges are the same.

[VintageIronFab]

https://lmr.com/item/M9432A51/79-95-Mus ... aQodYa0CaQ

These guys have the best deal with free shipping-- if you need a bunch of other stuff then Summit is always a great go to especially if they have the parts in their Reno warehouse.

[LvSteve]

Stage 8 makes a 1 1/4 also
If you are running a aluminium heads

[PotBellyWill]

Bumping an old thread. Anyone have any input or experience with the 1" bolts mentioned above? Looking at hardware for my JBAs.