460fanatic23

Hey everyone,

I need some help. I have a ford 1991 460 outta of a f250. Im rebuilding it and have bought this oil pan and pickup tube (links to both below)and want to know what you guys would do for an oil pump. should i get a regular or high volume pump?


Thanks

Paul Kane

Hello 460fanatic23 and welcome to the Ford Forums,

That's a very nice quality Canton front sump oil pan and pickup that you have. (If you purchased it through eiither Canton or Ford Racing, it is made by Canton.)

Although it is indeed a front sump style pan, Canton designed that front sump pan to be used with a rear sump oil pump. This is obvious by the pickup tube configuration. You need to use either the M84D or the M84DHV oil pump as offered by Melling.

Generally, I have a preference for HV pumps, but you have not detailed your build. Is this 1991 F250 460FI engine going to be rebuilt as an all stock engine and re-installed into an F250? If so, then the standard volume pump will do fine. But if you are building an engine of much higher performance, then you might want more oil pump.

Please describe your build a bit more....intended horsepower, max rpm, comrpession ratio, primary use of the engine (street/strip, drag race only, towing, etc). Then we can help you to select a proper oil pump for your combo.

Paul

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460fanatic23

im gonna put it in a boat. i have bought a rebuild kit for it, and am going to buy super cobra jets for it soon. hope that helps.

Thanks

Paul Kane

Marine application? I'd opt for the HV pump, especially if it's a hot boat such as a jet boat or v-drive. The oil will have a higher operating temp than in a passenger car and this is one of the times when the HV pump shows one of its benefits.

We sell performance prepped M84DHV's but are currently out of stock and only have the M84BHV (fron sump pump) in stock. More will be in stock shortly.

SCJ heads are very respecable cylinder heads and will provide a lot of room for you two grow (engine-wise) in the future. Depending on your exact combo, they may (or may not) be too much cylinder head.

I own both a drag hydro and a jet boat. Tell me more about your build (desired compression ratio, hp, peak rpm, boat type and use, etc).

Paul

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460fanatic23

i wanna get a jet boat to drop it in. like a tahiti or powercustoms etc. im lookin to get over 500 hp out of her. what heads and intake would you suggest? i was looking at the SCJ's and this intake below. Thanks for the response.


Summit 03-0188 - Summit® Intake Manifold, Carburetor, and Air Cleaner Value Packs - Overview - SummitRacing.com

Paul Kane

The Weiand tunnel ram and 2x4 600 cfm carbs will work well in a lake boat. However, the tunnel ram's runners are passenger car port-sized while the SCJ heads have larger Cobra jet sized ports. Ideally, the tunnel ram should be ported.

For 500 hp out of a 460, I feel the SCJ heads will certainly make for a good running engine but I also think there are more appropriate cylinder head options for a 500 hp tunnel rammed jet boat engine. For example, my jet boat has a tunnel ram and factory ported iron heads and the hp is about the same as what you are targeting. I can get SCJ heads for darn cheap right now and it makes sense to buy them on price alone, but on the other hand we have removed iron Cobra Jet heads from many jet boats and replaced them with ported factory iron heads and the improvement was obvious with the ported iron passenger car heads. The main reason for this is due to the port runner size relative to the overall engine combo (the factory CJ port runners are about the same runner volume as the SCJ's). That is not to say that the SCJ's don't have advantages of their own. There is no such thing as a "best" head; you need to select the most appropriate head for a given engine combo.

Where are you located? I might be able to help or point you in the right direction. Lots to tal about when it comes to jet boats and engine setup.

Paul

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460fanatic23

where would you get scj heads for cheap??

Also if i were to get scj heads, what intake would you recommend?


also im steering towards a electric water pump. is that a good idea for a boat?


Thanks

BTW, im located in Sacramento

460fanatic23

also paul,
would a single plane or dual plane intake manifold be better?

thanks

Paul Kane

Jet boat engines do not use waterpumps at all. The engine's timing cover usually has a waterpump block-off plate in place of the automotive mechanical waterpump. The engine's cooling system then receives its water flow from pressurized water that comes from a fitting in the jet pump which sends water to the engine via a waterline (hose).

I can get fully assembled Ford Racing SCJ heads for $1700, call if interested.

For 500 hp, a single plane 4-barrel intake can do the job. If you must have the tunnel ram then the Weiand package will certainly support the 500 horsepower goal even without the runners being enlarged to SCJ porting. If you do not know how to tune 2x4 tunnel ram engines then I suggest you start with 1 carburetor on a single 4-barrel intake, such as an Edelbrock Victor (I can get those for about $210).

I was almost in Sac today, for the Governor's Cup at the dragstrip. I pass though town about once per month.

Paul

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Paul Kane

Depends on the engine combo. There is no "best" head, or "best" intake, etc. What is improtant is the most appropriate for a given application. Typically, I prefer a single plane on a jet boat but there are a couple of dual plane intakes that can get the job done.

You should probably give me a call so that I can answer all your questions much more quickly and point you in the right direction.

Paul

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