When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hi everyone, I was I the process of installing my heads and my bolts all bottomed out with about 2 to 3 inches from the head. The holes are clean, I chased them and also measured with a thin tig welding rod and all the bolts came up equal length at around 4 inches (don't quote me on it) it's a 5.7 ls1 block, unsure of year but I thought it would use the same bolts that I use in my 5.3's (very long). What bolts do I need? Looking for arp brand. Thanks, any quick info will be appreciated so I can over night some. Thanks again
so they are all the same depth? stock diameter and thread?
yep, same thread and diameter of the long bolt. Bolts are just too long. All the holes have the same depth, even the outer one's. I did a bit more research, it's a 2001 motor pulled out of an 2002 camaro
Dang, not sure what it could be. Grade 11 bolts that will fit and just say **** it? Probably not. I measured every hole, so I doubt every bolt that was pulled off snapped in the block (is that common?)
Did some measuring. Here's what I found This is one of the shorter outer bolts, the orange line on the left is how long the bolt is when torqued all the way down in the hole. I measured 2.75 inches from the block deck to the bottom of the hole. It was 2.75 inches deep in every single hole, the inner ones and outer. Im kind of confused. Any ideas?
I just measured the depth of the holes, every single one was the exact same as the others, so that leads me to believe that there are no broken bolts, debris..etc in there, so I'm stumped at this point. I've never seen anything like it. No one has ever had an issue like this before?
You need an 04+ set. 04 and up are all short. 03 and bellow are short and long.
The motor was probably replaced under warranty sometime after 2004 and it got a 04+ ls6. Bam problem solved.
You need an 04+ set. 04 and up are all short. 03 and bellow are short and long.
The motor was probably replaced under warranty sometime after 2004 and it got a 04+ ls6. Bam problem solved.
so the 04+ uses the small bolts for all holes? I thought they all used the large bolts. If that's the case with them using the small bolts, I'm ordering them tonight
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.
Head bolt way too long 
