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

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

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.

Wannabe