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#1 (permalink) |
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Senior Member
Join Date: May 2007
Location: Chatham-Kent, Ontario
Posts: 117
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reving an Olds 350
With such a short stroke, why can't the 350 Olds be reved as high as a Chev 350? I'm not trying to be a jerk, I'm honestly just wondering. Is it insufficient oiling for the bottom end?
- GoldOlds |
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#2 (permalink) | |||
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Junior Member
Join Date: Oct 2004
Location: Southern CA
Posts: 1,189
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Quote:
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Norm |
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#3 (permalink) |
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Senior Member
Join Date: Jul 2007
Posts: 251
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The only reason i can think of, is the pistons sit at a larger angle outwards from the center of the engine, comparatively speaking to a chevy 350
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#4 (permalink) | |
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Moderator
Join Date: Mar 2007
Location: Northern VA
Posts: 1,888
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Quote:
There are a number of things that limit peak RPM. Bottom end strength (4 bolt mains vs. 2 bolt, for example), bearing speed (Olds motors have larger diameter main and rod bearings, which increases the linear speed for a given RPM), reciprocating mass, rod strength, valvetrain float, and head port flow. You can certainly build an SBO that matches an SBC for power at a given RPM. AJ Foyt ran a 350 Olds (NOT a diesel block, by the way) in a Cutlass in NASCAR in the mid 1970s. That's why CJ Batten developed those aftermarket heads in the first place.
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