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Stroking a 351w
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http://www.clubcobra.com/forums/small-block-talk/95204-stroking-351w.html)
| manyponies |
03-09-2009 09:30 AM |
408 are a very good combo but more cubes for the same money is better. We build many strokers a year and have no problems with rod angularity. Most who make a big deal over it do not understand it fully anyway. In Theory Rod/ stroke ratio assumes the cylinder center axis is in the center of the main. I can assure you that 99% of the time it is not. When we CNC our blocks we correct the placement that Ford and the aftermarket block suppliers get close. Cylinders that are ever so slightly off center have great effect on ACTUAL R/S ratio and most do not even no it exists because they have no way of measuring it, much less correcting it.
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| Mark O'Neal |
03-09-2009 10:04 AM |
Quote:
Originally Posted by PANAVIA
(Post 927990)
with the rod ratio and required pistons-- a 427W can lead to cylinder bore wear issues and oil consumption over the long-haul.
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My empirical data finds this to not be true.
Quote:
For instance - I am not a fan of ANY stroker piston where the OIL CONTROL RINGS intersect with the piston pin hole/bore, this leads to oil consumption and dirtier than needed exhaust.
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I make them both ways, however, if the engine is properly assembled this is not true either.
Quote:
a 402-408W (still with a 4.030 bore) might be a healthy long term , powerful alternative that would run cleaner, burn less oil, and last longer.
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I doubt it....but I also doubt that any of these cars are daily drivers........ |
| Mark O'Neal |
03-09-2009 10:06 AM |
Quote:
Originally Posted by manyponies
(Post 928083)
408 are a very good combo but more cubes for the same money is better. We build many strokers a year and have no problems with rod angularity. Most who make a big deal over it do not understand it fully anyway. In Theory Rod/ stroke ratio assumes the cylinder center axis is in the center of the main. I can assure you that 99% of the time it is not. When we CNC our blocks we correct the placement that Ford and the aftermarket block suppliers get close. Cylinders that are ever so slightly off center have great effect on ACTUAL R/S ratio and most do not even no it exists because they have no way of measuring it, much less correcting it.
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manyponies...I haven't seen you in a while.
No more Hardcore50? |
| manyponies |
03-09-2009 05:56 PM |
I still troll around to see whats going on. It was good to sit and talk with you at the PRI.
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| bmcnicho |
03-09-2009 09:21 PM |
I got word that my block will clean up to 4.040". I am set on the 427 stroker kit. This will not be daily driver and the bragging rights associated with having 427 cu-in is worth a slight hit in longevity or oil consumption.
After talking with several machine shops, I have scrapped the idea of 4 bolt main caps. I am going to go with a 5/8" thk steel girdle with APR main bolts & a windage tray.
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