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Discussion Starter · #1 ·
I have a 289 that was bored .20 over. How many CI do I have now?

Thanks for the math lesson!

Rex
1966 GT 350 Clone
289 (rebuilt with JE, Eagle, Arp)
Edleborck RPM Heads
Comp Cams hyd roller, Crane 1.6 rockers,
Holley 650 DP, Hookers 1 5/8, T-10, 3:55 Gears, Custom Dual exhaust with X Pipe
 

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3,428 Posts
3.1415*(2.0182.01)*2.8748*8

1966 Red Conv (200)
1966 White Pony Int.(289)A Code
1966 Coupe (289) C Code
MCA 36048
 

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6,782 Posts
Displacement = Pi * Dia * stroke * (# of cylinders)

Stock: disp = 3.1415 * 2.88 * 4.0 * 8 = 289.5 cubic inches
.020 over = 3.1415 * 2.90 * 4 * 8 = 292 Cubic Inches

My situation:
302 stock: 3.1415 * 3 * 4 * 8 = 301.6 cubic inches
302 .030 over: 3.1415 * 3.03 * 4 * 8 = 304.6 cubic inches



Steve Leslie, 65 coupe in restoration. 302, toploader, A/C, disc brakes, bench seat
 

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and face it size counts...*LOL*

'59 T-Bird..[color:blue]'70 Mustang Convert</font color=blue>...[color:green]'72 Mach One</font color=green>
http://clubs.hemmings.com/baymustang/t-bird.jpg
The Black Bird At 42,she's the oldest in my Ford stable
 
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