Re: 404/446 generation engines and their exchange

[bearbvd@xxxxxxxxxxxxxx (Greg Hermann)]

At 12:25 AM 6/9/03, ROCKY LEAR wrote:
>I have a 446 V8 which is the same engine family as the 404 which was used
>in heavy trucks. It has crossed my mind today while taking the bellhousing
>off....would it be possible to put one of these in place of a 345/392? The
>bellhousing pattern looks the same.

it is NOT the same.

 I am still debating what kind of engine I want to put back in the 1210. I
wanted to put a 7.3 diesel in it and still may do that eventually but I'm
still fishing for input and ideas at this point.

The MV 404/446 is VERY similar in configuration to the 6.9/7.3 diesels.

 I don't know the characteristics of this family of engine if they are any
heavier built inside than the earlier engines or what.

in some ways, yes. They do not, however, have a deep skirted block. Block
stops at the crank CL.

 I know there are a few performance parts available for the early engines
but surely not for the 446. Perhaps a custom grind cam might be a
possibility.  Does anyone have any ideas?

i'm sure that Charlie at Camcraft could fix you up with a cam---
>
>PS: How many different different cubic inch combos are there available in
>this type block? Just two?

yep, just the two sizes. only differences from 404 to 446 are crank and pistons.

 The 500+ CI engine used in some R series tractor trucks looks totally
different than this 446.

Yep, the LV8's are WAY different and much bigger. came 401/462/478/549, and
then 537/605.

Greg
>
>Rocky
>72 1210 4x4 T-ette