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Need Help on Heads on Gen 5 454's

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Old 11-16-2014, 12:25 PM
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Default Need Help on Heads on Gen 5 454's

Neighbor has a pair of stock 330-340 inboards out of his sea ray both standard rotation.Bought a offshore boat with no engines .Wants to use these,>reason for removing them was one had a blown head gasket and he re-powered with fuel injected engines.Now he is removing the heads and was asking if a head and intake manifold change would give him a little more HP.Does not want to get into the lower end.Has small ovel port heads on it now.Just want a little more than 340 HP Just a river boat .Wants to use the engines because they were well taken care of and are closed cooling system .Any thoughts or help would be helpful. Thanks JOHN SR
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Old 11-16-2014, 12:26 PM
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1. CAll and order pizza delivery
2. run to corner store and get beer
3. place beer and pizza plus anything else you need to survive for 3 or 4 days within arms reach
4. search 454 and 7.4
5. begin reading
6. pop a couple tylenol and some no doze and continue reading
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Old 11-16-2014, 12:45 PM
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Change to Dart Iron Eagle heads- roller cams, Dart intake and 750 cfm holleys. Will make 460+ hp, good idle great torque. Not that much $ really.

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