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08-17-2004, 11:53 PM
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#1 |
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Registered User
Join Date: Jul 2000
Location: Ridgecrest, CA
Posts: 182
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Inline 6 question
So, I picked up a 250 inline 6 from a buddy for nothing (along with a T-10 gearbox, bellhousing, clutchpack, starter, HEI dist, pulleys, carb, etc). I haven't fired it up, but it was supposedly a performance build. The weird thing is, the casting numbers say the block is a 250, but the heads are for a 230. Is this common with these inlines? I know next to nothing about these particular engines or tricks that are done to them...
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'71 Custom 10 350/TH350/3.73 Holley 650 Dbl. Pump, Headers, HEI ***************************** '76 K10 350/TH350/205/12-bolt(R)/Dana44(F) Primer Gray! ***************************** '01 Grand Prix GTP - my 260 HP gas sipper! Victory Red |
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08-17-2004, 11:56 PM
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#2 |
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Watch out for your cornhole !
 
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Very common. The head interchanges between 230, 250 ,and 292 engines.
The 292 is pretty different below the head though.
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I'm on the Instagram- @Gearhead_Kevin |
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08-17-2004, 11:57 PM
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#3 |
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Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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DON'T KNOW ABOUT THE HEAD THING......
BUTT....THE 6 CLY....H.E.I. IS GOLD.......DOHOOOO.... 
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08-18-2004, 07:27 AM
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#4 |
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Registered User
Join Date: Apr 2000
Location: Leesburg, GA
Posts: 746
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I am not positive, but I believe the 230 head has a smaller combustion chamber than the 250/292 head so it will give you a higher compression ratio. It is an easy way to gain a few horsepower.
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FOUNDING MEMBER OF THE DRUM BRAKE CLUB Second Owner 70 C-10 Second Owner 93 GMC C1500 Third Owner 99 C2500 Crew Cab Short Bed |
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08-19-2004, 01:24 AM
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#5 |
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Registered User
Join Date: May 2003
Location: Shreveport LA
Posts: 3,170
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It's the 194 head that has the smaller chamber. The only difference between the 230 & 250 is the crank & pistons. Block & heads are the same.
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