Warning against using ARP L19 rod bolts...

[Posi67]

I've managed to mangle the bottom end of my 390 pretty badly with a broken rod and the Std. ARP rod bolt looked fine afterward. I'm never going to be in the world that needs a L19 or better bolt however this is very valuable info so thanks to Brent for starting the discussion. 

[philminotti]

Just some follow-up on this topic... The Oliver 6.7" BBC rod (typical for an FE build that uses a crank with 2.2" rod journals) is C6700BBMX. These ship with L19 bolts.

Per Oliver technical support, the ARP 2000 replacement bolt is P/N BLT005 and the CA625 replacement is BLT003.

They are available factory direct or from Summit.

Phil

[Joey120373]

Hmm, now I want to check what my K1 rods have….

ARP 2000.

[blykins]

Hmm, now I want to check what my K1 rods have….

ARP 2000.

You're good with Molnar or K1.  They use ARP 2000 bolts. 

Ratings are ratings, right, lots of variables such as rpm, tune, etc., but K1 rates their rods for 1400 hp with those bolts.  I read all the time of guys using them on boosted engines up over 1000 hp.

[67xr7cat]

Hmm, now I want to check what my K1 rods have….

ARP 2000.

You're good with Molnar or K1.  They use ARP 2000 bolts. 

Ratings are ratings, right, lots of variables such as rpm, tune, etc., but K1 rates their rods for 1400 hp with those bolts.  I read all the time of guys using them on boosted engines up over 1000 hp.

Think RPM and how much weight hanging off the small end of the rod matter more. Also if you close the throttle and unload the piston at high RPM.  Never understood how you could put a HP rating on a rod.

[blykins]

Hmm, now I want to check what my K1 rods have….

ARP 2000.

You're good with Molnar or K1.  They use ARP 2000 bolts. 

Ratings are ratings, right, lots of variables such as rpm, tune, etc., but K1 rates their rods for 1400 hp with those bolts.  I read all the time of guys using them on boosted engines up over 1000 hp.

Think RPM and how much weight hanging off the small end of the rod matter more. Also if you close the throttle and unload the piston at high RPM.  Never understood how you could put a HP rating on a rod.

Yep, I agree, that's why I wrote what I wrote. 

I was just making the point that those ARP 2000 bolts will hold a lot more than you think.