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Old 05-14-2009, 06:08   #1 (permalink)
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what needed to get 500 HP out of 460

Hello,

i'm from the Netherlands and have a Cobra with a 460, but only 300 HP at crank and 250 at the wheels at 4400 RPM. I want to raise the HP to 500 at the crank! Can anybody advice me what parts or setup i need? The heads are stock D3VE-A2A and the block is DIVE-6015-A2
The compression now is 9.2 , the intake MF is Edelbrock performer, the heads do have roller rockers and double valve springs (is this standard?) , MSD ignition, holley 750 DP. I don't know what cam is installed, or what pistons.
Maybe some of you have a 500HP so i can copy the setup?

Thanks,

Danny
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Old 05-14-2009, 20:32   #2 (permalink)
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Re: what needed to get 500 HP out of 460

if you really want 500hp you need some money! pull the motor and do a full stroker rebuild
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Old 05-18-2009, 13:51   #3 (permalink)
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cool Re: what needed to get 500 HP out of 460

Quote:
Originally Posted by Cobra442277 View Post
Hello,

i'm from the Netherlands and have a Cobra with a 460, but only 300 HP at crank and 250 at the wheels at 4400 RPM. I want to raise the HP to 500 at the crank! Can anybody advice me what parts or setup i need? The heads are stock D3VE-A2A and the block is DIVE-6015-A2
The compression now is 9.2 , the intake MF is Edelbrock performer, the heads do have roller rockers and double valve springs (is this standard?) , MSD ignition, holley 750 DP. I don't know what cam is installed, or what pistons.
Maybe some of you have a 500HP so i can copy the setup?

Thanks,

Danny
Danny,

500 hp is not difficult at all with a 460. In fact, a lot of power may be found from your current engine with just your tune alone.

We need to know what you have for a camshaft. It would help for your D3VE heads to be ported, as they hurt upper rpm power as cast, particularly above 4000 rpm where you are looking at peak power. In order for your engine to have 9.2:1 , you would need to have replacement pistons with a lot less dish than the original pistons. Ignition timing and ignition curve plays a big part, and so would a larger carburetor. All these things would send you on your way to 500 hp, the last item being the proper camshaft profile.

We just really need absolute correct details about your current engine... did you build it?

Paul
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