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A 454 Big Block Motor bored .030 makes 468 or 462 cubes?

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Old 10-16-2008, 09:06 PM   #1
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Default A 454 Big Block Motor bored .030 makes 468 or 462 cubes?

Just bought a Prostreet 1971 RS split bumer Camaro with a good old school 454 Big Block Chevy Motor bored .030 over. Does that make the cubic inch displacemet (stock 454 crank) go to 468 cubes or 462 cubes?

Thanks in advance!
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Old 10-16-2008, 09:16 PM   #2
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468 - thats what ive always been told..
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Old 10-16-2008, 09:19 PM   #3
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Ive been told 468, and 1.030 * 454 = 468

here's something weird, when i bought my 70 camaro with a 454 bored .030 over, the guy told me it was stroked and bored to a 491
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Old 10-19-2008, 03:40 PM   #4
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my buddy has a 468 and he told me it was bored .060" to achieve the 468 CID! SO assuming a 454 bored .030" it should be around 462 cubic inches. Maybe someone who builds them will chime in.
But to my knowledge I feel I am correct.

James
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Old 10-20-2008, 07:41 AM   #5
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60 over is a 468, 30 over is a 461.xx something
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Old 10-20-2008, 02:10 PM   #6
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Thats what I thought!
Thanks for the clarification....

James
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Old 10-26-2008, 08:38 PM   #7
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Quote:
Originally Posted by USA1CAMARO1969 View Post
60 over is a 468, 30 over is a 461.xx something

Yes, I have researched this now and this is 100% accurate.

Turns out the top end on my 461 motor in my new camaro was shot so I spent $3,000 more and was able to get this monster pump gas Pat Musi Racing 555 cid, N/A 740 HP and 700 TQ, pump gas motor, that has more than enough power to propel my bad boy into the 9s (on motor). I was able to take full advantage of this buyers market and bought this for .50 cents on the dollar and got a written warranty from the seller also.

Here are pics of my new bad boy 740 HP, Pat Musi Racing built 555 Cid, pump gas motor:

motor.http://www.lightersales.com/motor.html
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Old 09-16-2012, 01:44 AM   #8
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.030 over isnt 468 its less than 462 because mine is .040 over and its a 462. my bore is 4.290-stock is 4.250
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Old 09-22-2012, 11:35 PM   #9
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it's 461.
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Old 09-23-2012, 08:43 AM   #10
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You guys realize this thread is 4 years old, right?
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