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I've got a '72 350 engine, If I was to rebuild it using a 1 peice rear main seal block 14093638 what CANT I use from the old motor on the newer block? eg: Sump, heads, manifold?? Also having trouble identifiying this crank 14088520. Oh and another thing, If I rebuild the engine with this block I want to someday put a 671 or 871 blower on it so 8.5:1 compression?? Will be running 98 octaine (highest octaine we can buy at the pump over here)
 

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I've got a '72 350 engine, If I was to rebuild it using a 1 peice rear main seal block 14093638 what CANT I use from the old motor on the newer block? eg: Sump, heads, manifold?? Also having trouble identifiying this crank 14088520. Oh and another thing, If I rebuild the engine with this block I want to someday put a 671 or 871 blower on it so 8.5:1 compression?? Will be running 98 octaine (highest octaine we can buy at the pump over here)
crank and flywheel
 

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There is an adapter so you can run the 2 piece seal crank and flywheel in the 1 piece seal block. If you are using a 1 piece seal crank, you will need a new flywheel.
 
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