I know that eagle offers stock replacement rotating assemblies (3.48 stroke x 4.03 bore) with a six inch rod. I know that the stock rod length is 5.7”. I want to know the advantages and disadvantages of using the 6” rod with a stock stroke. Thanks for helping me out again you guys!

 

because i need new pistons for my 400cid buildup, and am considering using 350 5.7" rods because i have them, i was searching for answers to the same question. i found this link.


http://www.victorylibrary.com/mopar/rod-tech-c.htm

read it and you'll know as much as i do.

 

There *** can*** be a slight top end power advantage using a longer than stock rod in a 350ci SBC. BUT!!! Untill you've spent ever last dollar on the best heads intake and exhaust money can buy, you're wasting your money on long rods.
Get he best power parts availiable ( heads, intake exhaust, valvetrain etc) before you even think about long(er) connecting rods. the gain is slight ( and mostly hype) compared to the power you'll gain with good induction and exhaust.

The 400 SBC is another matter. Going to a 5.7" rod from the stock 5.565" rod is just good stuff. If you're going to to build a 400, build it with 5.7" rods.