ARP 2307303 Torque Converter Bolt Review

I bought these for my 1969 Corvette 350/300HP. They didn't match the converter I bought from B&M. They were too big and no nuts were needed.

ARP bolts are the best insurance you can buy on a car. These bolts were larger than my factory flywheel bolts (weird) so I had to take an angle grinder and enlarge the flywheel bolt holes. Otherwise these bolts are great.

Screws received quickly, I had to drill out the flex plate a little. I prefer strong screws that fit well. Other brands of bolts were short and lost in the holes. My project is a BBC with Powerglide and 4700 rpm. I needed what ARP has! Very happy!

The second set of these I had the same problem with. Once tightened they were fine, but once tried to loosen them they didn't turn as if they were cross-threaded, despite actually being hand assembled prior to tightening. never had a problem with arp products other than these.

Okay, they nowhere near fit TH400 or TH350! The bolt is twice as long as it should be, it has too large a diameter. Even drilling out the converter and shearing off the bolts doesn't leave enough room to put a nut there, EVEN NAH! To be honest, I haven't seen converter bolts in a long time. Oh, and they have a 12-point bolt, so good luck finding a wrench in a hard-to-reach spot. I even checked the ARP website to make sure I ordered the same part number. Simply put, it is physically impossible…