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  #1  
Old 05-04-2001, 03:50 PM
Mike Wowk Mike Wowk is offline
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Default Re: OK,who has ran thier car at the track?no BS lets see some time slips
Rob,
427/512??? Is that the range of cubic inches you may be running? Shame on you! You had us all believing you guys were straight shooters and only believed in "pure stock" Look here Caseys only been here a short time and he has already corrupted you!
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Old 05-04-2001, 04:14 PM
Casey Marks Casey Marks is offline
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Default Re: OK,who has ran thier car at the track?no BS lets see some time slips
396 / 402 / 427 / 454 / 502 ...... they're all the same, aren't they ???
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Old 05-04-2001, 04:21 PM
Mike Wowk Mike Wowk is offline
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Default Re: OK,who has ran thier car at the track?no BS lets see some time slips
Hey Rob,
Let me handle this light weight for you!
Same basic thing just like 350,403,455.
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Old 05-04-2001, 04:30 PM
Chevy454 Chevy454 is offline
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Default Re: OK,who has ran thier car at the track?no BS lets see some time slips
I forgot that some of you "outcasts" were over here from Buick board! I should have been more specific...in '69 the COPOs generally used the block casting "512", which was a pre-cursor of things to come in '70, as it was notched for the longer throw of the 454 crank.

Funny thing, though...seems I keep getting emails about "stroking" this and that...I guess that sort of thing is popular with small block Olds engines...


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Old 05-04-2001, 06:02 PM
Mike Wowk Mike Wowk is offline
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Default Re: OK,who has ran thier car at the track?no BS lets see some time slips
So a 427 has a shorter stroke than a 454?
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Old 05-04-2001, 06:16 PM
Casey Marks Casey Marks is offline
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Default Re: OK,who has ran thier car at the track?no BS lets see some time slips
YES

A 427 has a 3.760" stroke, compared to the even 4" stroke of a 454. Same rod length, same bore.
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Old 05-04-2001, 07:09 PM
Mike Wowk Mike Wowk is offline
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Default Re: OK,who has ran thier car at the track?no BS lets see some time slips
OK then does a 427 have a taller piston? Or do they move the pin location? Or do all 427s just have 7 to 1 compression? LOL
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