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  #16 (permalink)  
Old 01-06-2013, 01:24 PM
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the 454 bored 030 is 460
a 500 HP 454 would be a mild build that revs 5800 to 6000 RPM making over 500 pounds torque. A 350 would need closer to 6800 rpm to make 500 hp and would require cylinder heads that flow 280 cfm, a roller cam(rough idle) big carb or modified fuel injection. The 350 would be a beast and expensive to build with moderate street manners. the torque would likely be 50-70 pounds less.
If you raced the engines against each other the performance would be close with a slight edge most likely to the 454.The small block 350 would need more gear to be close in performance.The small block is a lot lighter and easier to fit an engine bay,if that matters.
I use a small block for weight savings and handling.
what do you need/want

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Old 01-06-2013, 05:05 PM
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thanks alot .im not lookin to set any records just want a good sound and good power for less cost.
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Old 01-06-2013, 05:17 PM
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A 380 HP 454 will make 500 pounds of torque and not need to rev past 5,000.Its a tire melter and very easy to drive as the power is linear.
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Old 01-06-2013, 05:36 PM
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So what's would be the HP range with the stock heads on .30 block and comp cam n lifters .when I do the fi set up?
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Old 01-06-2013, 05:39 PM
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On the 355
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Old 01-06-2013, 05:50 PM
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And how much difference in weight
In the two?
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Old 01-06-2013, 05:56 PM
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100 pounds plus or minus.aluminum heads on a BB are close to the weight of a small block with iron heads. The rat takes up a lot more space. The fuel injection helps a lot with bottom end and mid range torque. Total HP is similar
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