Which bolts replace w/ARP?
Thread Starter
Racer
Joined: Apr 2004
Posts: 306
Likes: 0
From: Cotati CA
Which bolts replace w/ARP?
I'm doing a rebuild of my '89's L98 and would like to know which of the various bolts should be replaced w/ARP bolts. I tried searching the Forum, but could not get a good idea so all help is welcome! 
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
A lot depends on how you are going to use it. I would say, that in the order of importance, first, are the rod bolts. Second the main studs, and last, the head bolts. For almost any engine, I would use the rod bolts. The main and head bolts are mostly for higher output engines. For even higher output engines, ARP makes stud kits for the mains and heads. Anything else is pretty much "fluff". Header bolts and valve cover fasteners are nice, but how many hundreds of thousands of pounds of tensile strength do you need for a bolt threaded into aluminum?
RACE ON!!!
RACE ON!!!
Thread Starter
Racer
Joined: Apr 2004
Posts: 306
Likes: 0
From: Cotati CA
Originally Posted by CFI-EFI
A lot depends on how you are going to use it. I would say, that in the order of importance, first, are the rod bolts. Second the main studs, and last, the head bolts. For almost any engine, I would use the rod bolts. The main and head bolts are mostly for higher output engines. For even higher output engines, ARP makes stud kits for the mains and heads. Anything else is pretty much "fluff". Header bolts and valve cover fasteners are nice, but how many hundreds of thousands of pounds of tensile strength do you need for a bolt threaded into aluminum?
RACE ON!!!
RACE ON!!!
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Is this a stock or modified engine? The rod bolts are definitely a good idea but will require resizing of the rods after installation. The head bolts, might as well if you're going to replace them anyway. I'm not sure if this is a requirement on the L98 (replacement) but it is on the LT1. The mains I wouldn't worry about unless you're going to be making a good bit of power but then if it gives you peace of mind, why not? They're not that expensive either.
Thread Starter
Racer
Joined: Apr 2004
Posts: 306
Likes: 0
From: Cotati CA
Originally Posted by Corvette Kid NC
Is this a stock or modified engine? The rod bolts are definitely a good idea but will require resizing of the rods after installation. The head bolts, might as well if you're going to replace them anyway. I'm not sure if this is a requirement on the L98 (replacement) but it is on the LT1. The mains I wouldn't worry about unless you're going to be making a good bit of power but then if it gives you peace of mind, why not? They're not that expensive either.
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by V's Vette
CFI-EFI, As always, you have given excellent and thorough advice! Thanks alot!!!
I will say this. What I like about their head bolts is that they do an excellent job of maintaining clamping force compared to a stock bolt. This was something that really got my attention the first time I removed them.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Thread Starter
Racer
Joined: Apr 2004
Posts: 306
Likes: 0
From: Cotati CA
I just got off the phone with a rep at ARP. The best he could figure was to give me part #'s for a basic 350 on the Rods (p/n 134-6403), Heads (p/n 134-3601) and Mains (134-5001) w/large journal. Anyone know if these are correct for my L98 w/stock heads?