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500efi upgrade kits.

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Old 09-23-2009, 10:22 AM
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AFR full cnc heads with the hard anodiize option, a cam, pushrods, fuel pressure regulator mod, some gaskets and find a shop that knows how to tune. Should cost around $3,500-$4,000 a side. This should bump you 100hp easy. If you want to squeeze another 8-10hp out of it add the harding marine crossover with the idler pulley. As mentioned earlier, 500EFI's like Whipples / boost, but plan on major drive upgrades as well.
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Old 09-23-2009, 10:31 AM
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Quote:
Originally Posted by wnelles View Post
Mine are the carbed 500's. I don't have my dyno sheets with me but they were around 650 at 5800 rpm. Tyler also did a 500EFI motor for a buddy of mine and he loves it. Tyler reprogrammed his computer after all the upgrades and he says it idles nicer now than it did when it was stock.
The nice thing about the carb 500's is that you can always thow in a stroker crank without major changes to the top end, whereas the stock EFI manifolds don't seem to like more cubes.
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