[DeTomaso] 408 Stroker Life Expectancy-----Now 393/377

[Mad Dog Antenucci]

Well written Ron and good advise.
   
  md

ParaPantera at aol.com wrote:
  Take the following for what it's worth:


>From what I have learned from, believe it or not, a College level hi-po 
engine class where we studied such things as thrust loads, piston velocity, 
valve timing in relation to crank angle and the such, I can tell you opinion on 
this.

Forget about 408 cube Cleveland's, your asking for trouble since the oil 
ring has to intersect with the wrist pin. Do they make great numbers? they 
sure do! But for how long depends on how often you make the "happy pedal" 
touch the carpet.

For street use, the 393 (give or take a cube or two) is the way to go. No 
oil ring/wrist pin issues when parts are chosen correctly, make great torque 
for around town stop light-to-stop light bashing of 99% of the cars on the 
road today, both old and new. Expect double the life expectancy of a 408 
stroker from this set up.

For extended RPM use (such as ORR) the 377 combo is the way to go. Do to 
the thrust load/crank angle combo nation this sucker will last. While the 
torque numbers will not be as impressive as the 393, the peak HP will be in the 
same ball park but your durability has doubled.

As a side note, all 3 of the aforementioned combo nations will perform 
better with a custom grind camshaft. One thing I did learn is that "off the 
shelf" camshaft grinds will offer only 80 to 90% of any engines potential since 
they are designed with a wide range of variables in mind. Give the cam 
grinder your engines specs, car weight, carb size, tire size and gear ratio for 
optimum performance. 

Of course the above statement does not apply to those who wish to remain 
"posers" and brag about cubes while saving a couple of bucks on an engine build.

Ron



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Mad Dawg Antenucci 
Team Pantera Racing 
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