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Topic Review (Newest First)
08-05-2009 09:00 PM
ericnova72 Yes, because they are the EXACT same rod.
08-05-2009 08:25 PM
lg1969 You can use either 307 or 350 connecting rod to build a 327
08-05-2009 07:42 PM
jimfulco Be sure you get a Chevy crank and not an Oldsmobile crank. Both divisions made a 307 at one time or another.
08-04-2009 07:07 PM
ericnova72
Quote:
Originally Posted by techinspector1
It's all a matter of how much air you move through the motor. A 350 at 6000 moves 607 cfm. A 327 at 6425 moves 607 cfm. You can make the same power, but the 327 will require a better valvetrain. (read-more money).
And thats just it, in todays world building a 7500 rpm 350(or 383 or 406 or 4++!) is falling out of a boat easy and at the same cost, and which one moves more air and makes more power?!!
08-04-2009 06:58 PM
techinspector1 It's all a matter of how much air you move through the motor. A 350 at 6000 moves 607 cfm. A 327 at 6425 moves 607 cfm. You can make the same power, but the 327 will require a better valvetrain. (read-more money).
08-04-2009 06:39 PM
ericnova72 All it takes is a 307 crank, 327 spec pistons, and a 2-piece rear main seal 350 block. It's a step backwards though, ought to be thinking 383 . The "high revving" 327 only meant something when it was the biggest SBC available(like 1965ish). A bigger engine will blow you away.

Put your "high revvin" 327 in Uncle Elmers farm truck and see how fast it revs, then put a nice 454 in a 2600 early box Nova/Chevy II with 5.13 gears and you'll see what "high revvin" is all about. It's just noise!!

An engines ability to free rev high and fast has nothing to do with how well it will move once the weight of the car is imposed on it. Revving fast is meaningless.

I guess 500 years in the future when we are all drivin' our flying "George Jetson"-mobiles there will still be some fool bragging about a "high revvin" 327.
08-04-2009 06:35 PM
techinspector1
Quote:
Originally Posted by FmrStrtracer
If built the same,a 327 will make less power than your 350, the only reason to go with less cubic inches is to meet rules for a certain class of racing.
Bingo!
But yeah, if you just feel the need to do it. A large journal 327 crank or any 307 crank will work. You'll have to use 4.000" bore 327 pistons because of the different compression height between 350 and 327 pistons. (centerline of the wrist pin to the piston crown).
08-04-2009 06:04 PM
FmrStrtracer If built the same,a 327 will make less power than your 350, the only reason to go with less cubic inches is to meet rules for a certain class of racing.
08-04-2009 06:00 PM
DeathRattle Keep the 350 You can make it rev the same as the 327.
Keep the displacement, BUT if your dead set on a smaller motor ill give you my 307 if you give me your 350.
08-04-2009 05:48 PM
58lincoln
making a 327?

Hi again, I am not sure but I have heard you can make a 327 by putting a 307 crank in a 350, true? Where can I find a new 307 crank? I always wanted a 327 in my Nova and I think my 350 I just got would be a good candidate. What do you guys think? Will it rev higher? Has anyone done it?- Alex

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