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Original Message
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289 hipo is made of same grade iron |
By Royce - 04/24/2005 8:27:36 AM; IP 4.224.36.107 |
The 289 HP crank was not made of any special material either. some were hardness tested but the same excellent grade used in all Ford crankshafts was used.
A certain Mr. Dave Shoe debunked the idea of different grades of block or crankshaft iron some time ago by identifying that the factory blueprints all call for the same mix. There are some SK parts with unique batch callouts but none of the regular production motors got any special iron formulas.
Royce |
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