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Old 06-03-2004, 04:31 PM   #1
1971c10
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What do you think?

Should i keep my original 307 with 70k miles or should i drop a 350 out of a 71 oldmobile car in my truck? Im still on the fence about it..
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Old 06-03-2004, 05:08 PM   #2
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THIS IS THE MOTOR THAT YOU REALLY WANT!!!
Engines - Crate Performance> GM Big Block Chevy
GM Performance Parts 12498827
12498827- 572 Deluxe Package (720 HP Verison) 12498827
PACE Price Qty Order
$13,999.00
Detailed Description
GM Performance Parts Largest Displacement,Most Powerful Crate Engine Ever!
572/720 RACE Version

HORSEPOWER-720 at 6250
TORQUE-685 FT. Lbs at 4500
Maximum Recommended RPM- 6750
Compression Ratio- 12.1:1-Designed to run on 110 octane Race Fuel
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Old 06-03-2004, 06:39 PM   #3
Pilgrim
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Run the 307 until it drops THEN install the 350. My first 307 went 165,000 miles and the last one went 145,000 before it became a boat anchor.
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Old 06-03-2004, 11:27 PM   #4
grayw0lf
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If you guys keep posting pictures of that 572 & stuff like that, I won't even need to go to my favorite porn site when I'm done here!

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Old 06-04-2004, 08:40 AM   #5
cdowns
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if it's an olds 350 it's not a real bolt in drop in deal i think the bellhousing is different for the tranny
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Old 06-04-2004, 09:13 AM   #6
ACES
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I vote to keep the 307 because its already there and running. It will give you time to really get a hopped up 350.
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Old 06-04-2004, 07:55 PM   #7
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Quote:
Originally Posted by 1971c10
Should i keep my original 307 with 70k miles or should i drop a 350 out of a 71 oldmobile car in my truck? Im still on the fence about it..
i am a auto tech student and my teachers always told me the number one rule of auto mechanics is: if it aint broke don't fix it.
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