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Author
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Topic: Cubic Inch ?
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266
Journeyman Posts: 12
From: Columbus,NE
Registered: Nov 2006
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posted 11-20-2006 01:20 PM
 
I bought a used 347 stroker and bored it another 10 over. What cubic inch does that actually come out to? I have heard anything from 350 to 353.
Thanks
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Rustang
Gearhead Posts: 880
From: Clarion PA
Registered: Nov 2000
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posted 11-20-2006 01:24 PM
348.7------------------
'68 mustang 351 clevor- 10.92@124, 347 NMCA Mean Street [email protected] (soon to be quicker)
'67 Stang, 351W -11.18@118
'69 351C Torino-14.90@100
'79 Pickup 460 ET=14.4
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indyphil
Gearhead Posts: 3394
From: Senoia, G.A. USA
Registered: Jul 2002
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posted 11-20-2006 01:32 PM
If you owned a 347 then its based on a 3.4 inch stroke and a 4.030 bore.this is how it calculates
2.015^2 x pi x 3.4 x 8 = 346.95 cubic inches When you bore it another 0.010 inches you get: 2.020^2 x pi x 3.4 x 8 = 348.67 cubic inches. In terms of cubic inches you probably wont notice anything, but if your engine is badly worn enough to need it, you might notice the improvement in compression.
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266
Journeyman Posts: 12
From: Columbus,NE
Registered: Nov 2006
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posted 11-20-2006 02:20 PM
Thanks for the reply. The person who previously owned the motor put the head gaskets on backwards and got the motor real hot. He sold the complete motor to me for $575. At that price I figured that I could not go wrong. With a junk 600 cfm carb it is putting 325 horse to the ground through a c4 trans.
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