I just bought a set of the Eagle arp 2000 bolts to upgrade my BBC rods from the 8740 bolts and noticed the thread engagement is a bit off..
The old bolts are 1.750" under head with .700" of thread.
The replacements according Eagle are their part # 20030 which are 1.80" under head with .600" of thread.
I measured the rods and came up with 1.05" from the cap to the start of the thread & 1.58" from the cap to the end of the thread.
Soo the rods have .53" of thread total. ...
But with the "2000" bolts I only have .38" engaged as the rest of the thread on the bolt ends up past the thread in the rod..
I called Eagle back and asked about it and the person I spoke with was familiar with this question and stated "that's how ARP made the bolt for us and we've been running them like that for years with no issues"...
Anyone else run in to this ?