Re: New Ford I-6!

[farna@xxxxxxx]

Yep, I suspect the same. I don'tthink there's that much gain with the exhaust side, mostly with the intake. But then it's all in how the computer is programmed and the cams are ground. 

Funny thing about the 230 Tornado engine is that it was shunned over here by all except the US Army! It was so "odd" at the time that US mechanics didn't want to touch it. They blamed all sorts of maladies on the long timing chain that were non existent because they weren't used to anything like it. There never was a stretch problem with the chain, though it may have made a little more noise than the short chain used in most other engines. It was just different! It worked fine in M-715/M-725 Jeeps through the 70s (built by Kaiser from 67-69). It's been written that this used an "improved version" of the 230 OHC that was "troublesome when introduced" (in 1963), but I've found no veidence from early model owners who have properly maintained the engines that the early models were "troublesome". Reputation seems to come mostly from mechanics not wanting to deal with the "new fangled" OHC configuration and improper maintenance. They aren't really torquey engines -- the military t!
 rucks used a 5.87:1 rear axle to make up for that. So top speed was 55 mph, and the engine was really revving then (around 5K)!!  Most people who actually use their M-715s have converted over to the AMC 232 (more torque at low speeds) or various V-8s. Traveling at high speeds with the OHC 6 would burn the cam up eventually. 

On September 29, 2005 andrew hay wrote:

> btw only one cam is variable on the 4200 vortec - cost and complexity
> issues, i suppose.
> 
<SNIP>
>
> and kind of like the ika torinos in argentina, hemi-six valiants
> stood tall in competition long after they left production.


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