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Old 02-15-2013, 07:38 AM
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Default HP 500 heads
1 pair of heads off a HP500. Ported by Spyder performance. About 50 hrs on springs and all. SS intake and Inconel ex valves. Set up for roller cam 640 lift. $500 + shipping.
Last edited by Cobra100+; 02-15-2013 at 01:40 PM.
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Old 02-15-2013, 09:06 AM
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Misread post

Sorry
Last edited by cp5899; 02-15-2013 at 09:12 AM.
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Old 02-15-2013, 11:35 AM
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I have a nice carb and intake holley 850800double and edelbrock rpm performer air Gap
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Old 02-15-2013, 01:31 PM
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Kinda of a newbie question but how much more do these flow than 502mpi heads?
How much hp did these make on the motor they were on?
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Old 02-15-2013, 01:39 PM
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Originally Posted by tdpb2008
Kinda of a newbie question but how much more do these flow than 502mpi heads?
How much hp did these make on the motor they were on?
I dont have the flow numbers but the heads made 583 hp on HP 500s with 731 cam. They have ss intake and inconel ex valves.
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Old 02-15-2013, 01:41 PM
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Originally Posted by tdpb2008
Kinda of a newbie question but how much more do these flow than 502mpi heads?
How much hp did these make on the motor they were on?
I dont have the flow numbers but yes they do flow more rthe heads made 583 hp on HP 500s with 731 cam. They have/better than the 502 mpi heads. they also have ss intake and inconel ex valves.
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Old 02-15-2013, 03:31 PM
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You wouldn't happen to have a 500efi intake for sale would you? I'd like to turn my ugly mpi into a 500 with more show and go
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Old 02-15-2013, 05:33 PM
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No I dont have any EFI. IMO your wasting a lot of money for no HP. Put a good intake and carb on it and go.
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Old 02-15-2013, 06:14 PM
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Originally Posted by Cobra100+
No I dont have any EFI. IMO your wasting a lot of money for no HP. Put a good intake and carb on it and go.
You think? I'd like to dress he motor up a bit but don't want to go crazy with yet...next winters project I guess I need to talk to more people about going carb...I do like the 500efi and 525efi look...hate the look of the mpi
It's like comparing a chevette to a Lamborghini lol
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Old 02-15-2013, 06:31 PM
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Alot more than just bolting on a 500 efi intake and going boating.
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