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Old 08-29-2019, 09:46 AM
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Sirrotica Sirrotica is online now
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Join Date: Jan 2005
Location: Catawba Ohio
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Quote:
Originally Posted by J.C.you View Post
The major performance flaw (back in the day)of the engine was not the block but the cast rods. Before the Chinese stuff became available a factory sd forged rod would bring big bucs and be out of the question.
When we were budget shoe stringing a performance motor together it would be 3 old beater blocks tear down time. Usually about half the big ends on the cast rods would be egged and at least a couple thousands out. That alone has made many guys sour on ponchos go brand x when they popped a "performance" poncho motor.
This is entirely true that the rods were the largest limiting factor, (I struggled with them in oval track cars for years). As better rods became available the blocks were the next weak link as well as the cast cranks. Both have been addressed now, and the engines have went on to produce power with many other marques.

Great Post JC....

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1973 T/A (SOLD)
2005 GTO
1984 Grand Prix

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