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Old 11-30-2012, 10:25 AM
ap72 ap72 is offline
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Originally Posted by vinniekq2 View Post
Dart SHP 180cc Straight Plug Aluminum Heads,GM Hi-Performance 4 Bolt Block(new), Hydraulic Roller Camshaft,edelbrock performer(air gap),nodular or better internal balanced 3,75 stroke cam,hyper or forged pistons,keep compression around 9-9 1/4 for a boat, the engine like this would cost me about $7,500,not cheap and likely 430-440 hp at 5,200 RPM.
power can be adjusted up or down as required,your choice.Im thinking an engine that will last years and be reliable.
are you planning to use fuel injection or carb? for skiing F.I. would be nicer. what kind of exhaust manifolds are you using? wet or dry?
an engine like this would make around 300 hp as low as 3,000 rpm with peak torque around there depending on camshaft chosen.
When I built my 434 I purchased my parts from eastern states and had them air freighted to Vancouver Canada,it was cheaper to ship than the hood I bought in California and had sent by truck.Look into freight costs and see if you can get a package sent?
Although a 180cc runner is about right I wouldn't use the SHP heads, if you're going to spend the money for some nice ones I'd look into some Profilers for an "as cast" head.

SBC 23 Degree Cylinder Heads

If you plan on taking this thing up to 6,000 rpm often you may want to consider the 195cc version.
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