Re: RC: 410 or 454?

["Truman Prevatt, PhD" <truman.prevatt@netsrq.com>]

Kat,

Here are some back of the envelope calculations you can mull over to maybe help in your decision.

"guest@endurance.net" wrote:

>
> It currently has a 350 rear end in it, and I have to be going 50
> to 55 mph to put it in 4th gear if I don’t want to lug the

with a 454 these speeds will become 39 to 43
with a 410 these speeds will become 43 to 47


>
> engine (and lugging the engine is not something you want to do
> to a 15 year old gasoline engine, especially not when it is
> loaded with a horse trailer), and I have to be going over 65 mph
> to get it in 5th gear.

with a 454 this speeds will be 51
woth a 410 this speed will be 55


> If I put it in 3rd gear going down a
> grade, I still have to ride the brakes, whereas if I put it in
> second gear, it tops out at about 15 mph, so yes, the difference
> between second and third gears is pretty substantial...so maybe
> the gear splitter IS the way to go???.  First gear is a compound
> granny gear, and so used only if I want to climb a tree :)
>

You will probably be okay coming down a grade in 3rd with at 454 unless it is really steep and long.