oil pump

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Jun 24, 2006 | 08:04 AM

daveengelson

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From: Boulder Creek, Ca

oil pump

Installing rebuilt 302 comes w/ std oil pump. Have Edelbrock 4bl carb, had slight upgrade cam installed at shop. Question is whether the stock pump is sufficient or should I put out extra bucks and go with hi volumn or hi pressure pump? Noticed in Performance catalog there's a choice of hi volumn, or high pressure, not sure of difference. Any input, suggestions would be appreciated.

dave

Jun 24, 2006 | 09:37 AM

tomw

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From: suburban atlanta

Unless you are planning to go racing, don't bother. Increased pressure is obtained with a stronger relief valve spring. Increased volume is obtained with larger capacity gears. You only need the volume if your bearings are set loose, i.e. for racing, to keep the cool while running the snot out of therm. I don't understand myself the need for a high pressure pump unless it is to assure that oil is getting to the farthest point in the lube system with some guaranteed level of pressure/flow. In a perfect system, the pressure would be the same throughout. In the real, or at least my, world, the pressure varies throughout the system. I suspect that you need higher pressure just to reach the "boonies" of the lubrication system, but I'm sure someone will correct me.
tom

Jun 24, 2006 | 07:29 PM

daveengelson

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From: Boulder Creek, Ca

Appreciate the input. Was not sure the minor upgrades in carburation, and cam would require a step up in oil pump. Sounds like the standard equipment is more than enough to meet engine demands. Nope, do not see any racing in engines future, it's going into a 65 F100 with a T18 tranny. Thnx again.

dave

Jun 24, 2006 | 07:38 PM

TigerDan

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From: The hills of No. Calif.

I agree with Tom. For what you're doing, the stock pump is just fine.

Jun 25, 2006 | 08:38 AM

ken75ranger

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From: Troy,NY

I have actually seen some damage from using HV oil pumps. It puts a bigger load on the gears between the distributor and the cam. It ate the distributor gear on them and they were all steel gears on a steel cam from different mfgs.

Jun 25, 2006 | 10:25 AM

daveengelson

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From: Boulder Creek, Ca

Seems, over time, these early vintage engines develope leaks standing still. Was kinda concerned about heating issue when rebuilds get into the .030-.040 over range, particularly when installed in a truck. Just have to see.

dave