440 build questions

[Kuruton]

Talking to an engine builder about having work done on a 75' 440. I want it to be completely daily-able on 93 octane but hit at least 400 crank hp and run power brakes without an external pump.

It would be stock pistons, hastings rings, roller rockers, double roller timing chain, sealed power bearings, melling oil pump, earlier closed chamber heads, performer rpm intake and dougs long tube headers. For the cam, he recommended the comp 280H, but I'm thinking the comp XE268H.

He says with the swapped heads, it should be around 9:1 compression and doesnt recommend spending the money on a roller cam or aftermarket pistons.

Looking for input from anyone with more experience. Any different reccomendations or changes they'd make. Appreciate it!

 

[Xcudame]

The key to 440 power is all the the quench zone. You need pistons that will give you ~.040" to .060" between the top of the piston and the earlier closed chambered heads. Get the quench right, you can probably get 400 hp (kinda wimpy for a 440!) with any after market camshaft out there. For power brakes you want a cam with around 112° to 114° lobe separation. Others will have different opinions, but I'm not wrong.