There was a member that used to post pretty regularly that had a 451 in a Pacer.
At one point he put an Indy headed 511 low deck in it.
After it had been running a short time he was commenting on how a lot of the motor hardware just wouldn’t stay tight.
Intake and carb bolts, alternator, pulleys, etc.
It had a Chinese made Professional Products SFI damper on it.
He ended up taking the Australian made Summit damper off the 451 and putting it on the 511...... and the bolts miraculously stopped coming loose.
I think I can remember those threads years ago.
Referring back to Mark Gates' Pacer, I believe.
