Cam Recommendations?

[dcdoug]

My cam might work pretty well for you. You've probably seen my own rebuild thread at: Found this in my oil pan

The cam is a Holman Moody solid flat tappet "B" cam. Good condition with 6k miles on it. Only reason I'm changing it is because the rest of the rotating assembly is changing

Here are the specs:

Exhaust Duration = 242
Intake Duration = 242
Intake Center Line = 105
Exhaust Center Line = 107
Lobe Separation Angle = 106
Cam installed w/ key 2 deg advanced (I think)
Gross lift = .526
Overlap at .050 = 30 deg
Rocker ratio: 1.76
Cam card is here if you want to see it: Club Cobra - Powered by vBulletin

[FatBoy]

Hi Doug,

Thank you for thinking of me.

I assume you have the solid lifters to go with it and that they've been numbered to ensure they're put back on the same cam lobes.

I recognise that you're replacing other items in your engine, but were you happy with the cam and what characteristics did you want to change? We often do some long distance tours in our Cobra, so I can't have a cam that is too extreme.

In the general scheme of things, new cams aren't expensive, but please drop me a PM to tell me how much you want for it.

Thank you,
Paul

[blykins]

I have about 30-40 tapered ones and prefer to use them, but I could never find one for a standard bore 427, so I just use an adjustable one.

He meant no oil or lubricant between the bearing shell and the rod or main.

[FatBoy]

Originally Posted by blykins

I have about 30-40 tapered ones and prefer to use them, but I could never find one for a standard bore 427, so I just use an adjustable one.

He meant no oil or lubricant between the bearing shell and the rod or main.

Ah, okay, that makes more sense. 🙂

Are any types of ring compressors better than others?

[blykins]

What's your exact bore size? I see that ARP now has a 4.232".

If you can buy a tapered compressor, I like those best. If not, just an adjustable band type will work with a little finesse.

[FatBoy]

Originally Posted by blykins

What's your exact bore size? I see that ARP now has a 4.232".

I'll check the Pistons, but I'm pretty sure it's still on standard bore sizes.

What size should the ring compressor be compared to the bore size?

[blykins]

I've never tried to fudge it, so I'm not sure on what you can get away with. The piston size wouldn't be the problem, but hanging the rings up on the block on the way down would be the issue.

I think 4.233" is true bore size for a standard 427, so that 4.232" compressor should put you in a good spot.