One more thing---The rods you have are the same that I used in my 400 I build as a test engine in 88. I FINALLY broke 4 pistons five years ago.
I took that engine to over 7,000 rpm all the time--but, that is not the same as doing 100 laps with heavy load on and off load. That's what breaks stock rods loading on and off contuinlessly.
Just letting you know I have used the same rods. I went to Scat rods so I wouldn't have to worry about breakage.
I hope the info I am giving you is helping.
__________________
64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
|