[DeTomaso] NPC: The Mach 1 Project begins

[George Luif]

There were indeed two different engine versions in the Boss 429.   
There was the S and the T version.  The first couple hundred had the S  
version which had beefy rods with 1/2 inch rod bolts, different  
pistons and a hydraulic cam.  Leave it to Ford to put a hydraulic cam  
in the motor that would rev to 8 grand.  The T version had smaller  
rods with 3/8 bolts and a solid cam.  The compression was 10.5 to 1 on  
both versions.  I myself owned a 1969 S version that I sold cheaply  
back in 1985 that indeed had the brass plate in the door.  These  
motors were dogs in stock form due to the very low cam profile and  
735cfm carb.  Figure that, the Boss 302 had a 780 carb.
I gained an easy 150 hp by installing a larger lift and duration cam  
with an 850 carb with headers.  That woke up the sleeping giant.  That  
car would melt 10 inch slicks quite easily.  I hated to get rid of it  
but I had twins on the way.

George

On Oct 22, 2008, at 5:12 PM, Ken Green wrote:

> If there were two versions, and only 200 of the semi-race, were the  
> high dollar sales for the super rare version?
>
> Ken
>
> --- On Wed, 10/22/08, JDeRyke at aol.com <JDeRyke at aol.com> wrote:
>
> From: JDeRyke at aol.com <JDeRyke at aol.com>
> Subject: Re: [DeTomaso] NPC: The Mach 1 Project begins
> To: kenn_green at yahoo.com
> Cc: detomaso at realbig.com
> Date: Wednesday, October 22, 2008, 2:54 PM
>
> In a message dated 10/22/08 8:59:18 AM, kenn_green at yahoo.com writes:
>
>> I took a look at a BOSS 429 Mustang last night, they really  
>> shoehorned
> the
>> engine in.  The guy how owns the shop said Ford had to modify the  
>> shock
>> towers to make the motor fit.
>>
> There were apparently two versions- the street one with a cooking  
> version of
> the Boss 429, and the one-of-200 with a semi-race Boss 429 and a  
> brass tag on
> the doorsill that said NASCAR Boss.... We asked one NASCAR-Boss  
> owner that had
> his for sale why if there's was only12,000 miles on it, had it  
> recently
> been
> overhauled? He said the forged aluminum TRW pistons extrude longer and
> narrower from heat & stress as the engine is run, causing piston  
> rattle and
> blow-by,
> and the valves didn't last very long either. And with it needing 98  
> octane
> (with water injection), delivering 4-6 mpg and getting only 6000  
> miles out of a
>
> set of OEM 7" wide tires, he just couldn't afford to run it any
> longer.... in
> 1987. He was asking the outrageous price of $12k, as I remember!!  
> FWIW- J
> DeRyke
>
>
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