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 Stock/mild Cam for Pontiac 326
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67lemans
Tribal Scout

5 Posts

Posted - 17 May 2020 :  8:18:51 PM  Show Profile  Reply with Quote
Would anyone mind making a recommendation for a stock type cam for a Pontiac 326. Other than having added a 4bbl, dual exhaust, and 3.23 rear gears with T350 automatic trans, its pretty stock and will be used for street driving only, no racing. It's .030 over and compression calculates at 9:1. Thanks, DD

Brian Baker
Mongo

USA
1098 Posts

Posted - 17 May 2020 :  11:58:29 PM  Show Profile  Reply with Quote
I'd go with the old tried and true 067 cam, and no bigger.

https://butlerperformance.com/c-1234841-camshaft-valvetrain-components-camshafts-cam-kits-melling-stock-replacement-cams.html

Will Rogers never met a liberal.
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Corncob2061
Crazy Horse

USA
669 Posts

Posted - 18 May 2020 :  08:06:58 AM  Show Profile  Reply with Quote
The 067 would be a good choice. I would probably consider a 204/214 rated summit 2800 or like jegs, elgin, speedpro, or melling grind would be a slight upgrade to a 067, about half the price, no other valve terrain upgrades are needed.

067 is rated at 284/293 200/210. @ .050 .404/.404
Versus 2800, at a low 600 rpm idle the 2800 would start to have a very slight lope in a 326. It?s specs are
288/298 204/214@.050, .421/.443

If you want to put more effort into the cam selection the Lunati 700 would run slightly better yet. It advertise rating is 250/256, 207/213@.050, .437/.455 lift.
Rated the same SAE rating as the other two cams mentioned it would be close to 264/270. It would be very mild like the 067 and idle a bit smoother than the summit 2800. Jay


Edited by - Corncob2061 on 18 May 2020 08:11:23 AM
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Steve C.
Chief PONTIAC

2141 Posts

Posted - 18 May 2020 :  08:19:26 AM  Show Profile  Reply with Quote
No matter what cam you decide on I would certainly consider replacing the valve springs if they have a ton of miles on them.


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67lemans
Tribal Scout

5 Posts

Posted - 18 May 2020 :  09:43:20 AM  Show Profile  Reply with Quote
Thanks guys. I have the engine rebuild receipt from 20 years ago. I don't think there were many miles put on the car, but of course it leaks from about every possible location which is why its out. The cylinders look real good (no lip). The valve springs were replaced at the time of the rebuild, do you think I should still replace them? All the parts were stock sealed power/melling type stuff.
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Steve C.
Chief PONTIAC

2141 Posts

Posted - 18 May 2020 :  3:13:33 PM  Show Profile  Reply with Quote
My comment about replacing the valve springs was based on the presumption they had a lot of miles on them.
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tjs44
Crazy Horse

USA
675 Posts

Posted - 18 May 2020 :  4:04:24 PM  Show Profile  Reply with Quote
2X 2800.Tom
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67lemans
Tribal Scout

5 Posts

Posted - 19 May 2020 :  05:53:12 AM  Show Profile  Reply with Quote
Steve C. - Thanks.

All, I couldn't tell if the 066 or 067 was the stock cam, so I appreciate the advice there and will check out the 2800. My goal would be to choose the one with the most tire spinning torque from a stop, to have a little fun on the street at lower rpms, and to keep it a peppy little original poncho. (without pouring a ton of $$s in it of course). Thanks to all.
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