Head Bolts
Thread Starter
Melting Slicks
Joined: Mar 2004
Posts: 3,472
Likes: 18
From: Lake Ozark, MO
Head Bolts
The reworked 100.6 cc heads are going back on the project 454. Do I need to use new head bolts (ARP) or should the old ones be ok - if they look ok? CR should be at 10:1.
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
If it were me, I would go with new, unstreched bolts. I do not have a big block so I have no idea as to what they cost. I recently purchased new GM head bolts for a small block and the cost was in the $20 price range; enough for both heads.
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Originally Posted by lebvette
Don't even think about using nothing but new ARP head bolts!
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Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Good choice.
But FYI.... if the heads were holding compression before you tore it down, chances are the bolts have not been over-torqued or over-stretched and can be re-used. I've been building engines professionally since about 1965 and have re-used the original bolts in many, many rebuilds (not all) without a single failure. Depends on the application and my assessment of the bolts.
But hey.... this is a Vette we're talking about here... not a milk truck, eh?
ARP makes stuff they don't even have in their catalog. Sometimes you have to call and ask. Cool company. Awesome toys.
But FYI.... if the heads were holding compression before you tore it down, chances are the bolts have not been over-torqued or over-stretched and can be re-used. I've been building engines professionally since about 1965 and have re-used the original bolts in many, many rebuilds (not all) without a single failure. Depends on the application and my assessment of the bolts.
But hey.... this is a Vette we're talking about here... not a milk truck, eh?
ARP makes stuff they don't even have in their catalog. Sometimes you have to call and ask. Cool company. Awesome toys.