I posted this over on the other FE forum but thought I'd ask here.


My 428 has previously been balanced with the (refurbished) C7AE-B factory connecting rods.
Big end resized, pin end re bushed. ARP bolts.
They have been beam polished and are lighter than stock.

I do have the correct 428 flex plate with the weight.
It was used in the balancing of  the rotating assembly.


The engine has been in storage/project stalled for a long time. Never run.
Now I'm back at it, and on the advice of another forum member, he recommended that I upgrade the rods.
I have a custom hyd roller cam and the Trick Flow heads. Should be knocking on 450 - 500 HP?
Max RPM 6000, maybe 6500.

Intended use, well it's going into my 66 Galaxie and mainly street use, with an occasional trip to the drags.

Crank is a factory 428 1U turned 0.020" - 0.020"

I now have a set of Molnar rods for it.
I'm not changing anything else in the rotating assembly, just the rods.

The stock rods total weight now runs from 736g to 740g  Only one rod is 736g, all the others are 739, to 740g.

The new Molnar rods are 3 of them at 751g and the rest at 750g.

I don't have a rod weighing jig so at this time I can't check the big and little end separately.

Should I re-balance? Do I need to?

The only thing I have for the previous balance work, to say that it was properly balanced,
is the good reputation of the shop that balanced the rotating assembly many years ago.
That shop at the time was the "go to" guys for anything FE.
I can only trust that they did it right.
Long since closed up shop, so I can't ask them.
I was in the shop long ago, but did not get to see them doing the actual balance procedure.
I did see the balance machine and setup and as I recall it was professional looking.


Thanks for all reply's.

I've seen it mentioned that Precision Oil Pumps has rocker stands that are cut (shortened) to fit with the raised mount pads on the TFS FE heads.


I can't find these cut stands on the POP website.