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Cam For 401 W/PS, PB, A/C?
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PROSTOCKTOM View Drop Down
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Joined: Jun/20/2010
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Points: 2450 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PROSTOCKTOM Quote  Post ReplyReply Direct Link To This Post Posted: Jul/25/2021 at 8:07pm
Originally posted by WhatISit WhatISit wrote:

I definitely did consider a hydraulic roller cam, but I came to my own conclusion that isn’t worth the extra cost with what I’m trying to do. If I wanted to go more extreme I probably would. 
In the grand scheme of things the difference in cost is nothing if you have any issues. However the overall gain that a roller allows more than pays for it's self in longevity, performance, efficiency, and overall fuel mileage. Using iron heads and a roller are better in my opinion than using Edelbrock heads and a hydraulic flat tappet cam.

Tom
Molnar Technologies Full Service Dealer - Crankshafts & Connecting Rods

1969 AMC Rambler Rouge Race Car
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Points: 3313 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sweatlock Quote  Post ReplyReply Direct Link To This Post Posted: Jul/25/2021 at 9:10pm
Roller cams are great in modern engines that are designed for them. However, installing a roller cam in an engine that never had a roller cam as a factory option brings with it a new set of potential failure modes. 

There are only a few reasons that a modern hydraulic flat-tappet cam would ‘wipeout’: improper break-in procedure, improper metallurgy (hardening) of the cam lobes/lifter faces, & improper or no break-in lubricant used. If the metallurgy is questionable with certain cam manufacturers, then best to stay way from them and go with a manufacturer with a proven track record; points 1 & 3 can be corrected for. 

A $1,000 is a lot to be able to put into something else. 
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Points: 0 		Post Options Post Options   Thanks (0) Thanks(0)   Quote WhatISit Quote  Post ReplyReply Direct Link To This Post Posted: Aug/05/2021 at 11:27am
With Lunati's guidance, I've decided to go with the 10100703 cam. They said with the 2500 stall and 3.54 gears I acquired, the cam would be the best choice in the 401. The Offenhauser intake will definitely be the bottleneck when it comes to power, but we'll see how it does with it. 
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