What's the proper bolt for a 454 LS5 intake manifold? Most of the bolts currently installed on my car look like the photo below- recessed hex head with a flange/shoulder and dark/black phosphate finish (this photo is from an eBay vendor claiming to sell NOS bolts).
But the JG shows a "flat" (not recessed) hex head with a flange/shoulder (Fig. M 7.10 on p 135, 6th edition). My car has one or two of these too (a mixed bag- it was overhauled by a PO).
Second question: Are all 16 bolts the same length, as this photo suggests? I ask because a couple of bolts go through the engine lift bracket... should these be longer?
I did a search on this forum but came up empty handed.
Thanks for your help.
th-1381186182.jpg
But the JG shows a "flat" (not recessed) hex head with a flange/shoulder (Fig. M 7.10 on p 135, 6th edition). My car has one or two of these too (a mixed bag- it was overhauled by a PO).
Second question: Are all 16 bolts the same length, as this photo suggests? I ask because a couple of bolts go through the engine lift bracket... should these be longer?
I did a search on this forum but came up empty handed.
Thanks for your help.
th-1381186182.jpg
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