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Old 07-08-2010, 06:51 PM
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whats it take to hit 7k?

What would it take to turn 7k on the tach with a 383?

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Old 07-08-2010, 06:56 PM
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It takes the right cam, springs, intake, headers and to some extent heads.
The strength of the bottom end will determine if it will live at that RPM.

The right combination of parts will assure you make power at that RPM.

The right gears and converter will help you get to the desired RPM quickly.
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Old 07-08-2010, 07:01 PM
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Bottom end would be forged crank in a 4 bolt block AFR street heads some type of comp cam and hooker full length headers. Can a dual plane intake be used?
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Old 07-08-2010, 07:40 PM
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Before you start selecting any of the top end parts you must decide the
intended application and be very specific about the entire power range.
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Old 07-08-2010, 07:59 PM
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Just trying to gather info early this won't be built for a year or 2 have to finish other projects first. It'll be going into a Chevy luv. Weighs in at 2490 curb. It'll be a street strip truck. No vacuum accessories so low vac won't be a problem
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Old 07-08-2010, 08:38 PM
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Missed shift?
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Old 07-08-2010, 08:42 PM
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Haha. Done that on the bike a few times. Hit 10500
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Old 07-08-2010, 08:55 PM
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put a 7:33 rear end gear in it and 7,000 rpm will be no prob , surviving it may be another issue .
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Old 07-08-2010, 08:59 PM
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Ha yea I need this motor to last. My pockets have a shallow end
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Old 07-09-2010, 03:52 AM
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Shouldn't take much. The 406 I had would be at 6700-6800 through the traps. It would pull strong up to that point. If I had run better cyl. heads/intake/carb set-up (462-camelbacks/Perf. RPM/Holley 750DP)...and used 5.7 rods instead of 5.56...it would have been good for over 7000rpm.
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