difference between a 440 HP and 440 six pack motor

[Cranky]

The six pack has three carburetors and the 440 HP has one. heh.

:hello2::icon_mrgreen:

 

[Meep-Meep]

if the 6 pack is externally balanced then you should be able to see the externally balanced harmonic balancer right?

Yes,

 

[Meep-Meep]

Thanks, Meep Meep. So a 0 deck 440 piston would have a C/H of 2.067 I believe. Which makes the 440 6-pak with a C/H of 2.065 have a .002" below deck clearance, right? So by ordering 6-pak pistons I could gain some compression I think.

2.065" vs. 2.067" is hardly worth making a fuss over but if your pistons are in the hole .080" or so then swapping to zero deck six pack pistons will definitely give you more squeeze. Keep in mind you will most likely have to rebalance the assembly.

 

[Meep-Meep]

The six pack has three carburetors and the 440 HP has one. heh.

That's just brilliant how you came up with that :icon_thumright::eusa_clap::rolling:

 

[Supershafts]

I've always heard that cop car 440's were supposed to have 6 pack rods but the few I've torn down just had LY's in them. Same goes for motor home 440's....never found any big rods in them either but they were all later models too. Mom may have used the big rods until they ran out.

I have seen them in old pd vehicle motors, station wagons and other regular motors in non hp cars, seems they must have had lots of them laying around and just threw em in to get rid of them, or they might have thought they were going to sell more 6pks