[OE Espo]

Dad is building a 326 to replace his original tired 326 in his 65' Lemans.
326 purchased with bottom end done by PO (no records)
2 valve relief pistons not sure what they are? will try to post a picture
We built a run stand and fired it as purchased.
.030 over .025 piston to deck
New 092 heads 71 cc measured, not on yet.
9.1 SCR as calculated with several online calculators that's with cometic .027 thick compressed gaskets.
Stock look with AFB original iron intake
Points distributor
200R trans, 3.55 Auburn posit, 215-7015 bfg's
Want to achieve min power as the 326ho
HO iron manifolds with the enlarged outlet. Full 2-1/2" dual exhaust.
Power disc brakes

[ponyakr]

#1--- Summit 2800-----It's actually a bit bigger than the factory cam. But it's about the cheapest small cam available.

http://www.summitracing.com/parts/sum-k2800

But there are obviously smaller cams available.

http://www.bulletcams.com/Masters/Hlobes.htm

[77 TRASHCAN]

I don't know what the 2800 cam specs are...
It's easy to over cam a smaller engine. A little too much duration and you lose lower RPM cylinder pressure. Not having many cubes to work with. you're killing drive-ability power, that you didn't have much to start with because of the smaller engine.

Rule of thumb I was given years ago, keep .050 duration numbers real close to 200. This is for a daily driven street vehicle

The 066 should be good (Sealed Power CS641 Melling also still sells, forgot number) the 067 would be good also...

[b-man]

Tried and true 068 cam, hard to go wrong with that.

066 is also a fine choice, still more cam than any 326 ever came with. The 326 HO used the same cam as the standard 2-barrel 326, power increase came from compression bump (from 8.6:1 to 10.5:1) , 4-barrel and dual exhaust.

Good luck finding the 067 cam which would be my top pick, nobody reproduces it to my knowledge.

[ponyakr]

Smaller cams:

http://schneidercams.com/252-56Hponhydraulic.aspx

http://www.summitracing.com/parts/hrs-417561-11

http://www.summitracing.com/parts/hrs-417701-11

http://www.summitracing.com/parts/hrs-417131-11

I personally don't think you need to go any smaller than the smallest of these. But that's just my opinion.

CP sells the Howard's a little cheaper than Summit. But Summit will usually match the price.

http://www.competitionproducts.com/H.../products/328/

The SP CS-641 that TRASHCAN mentioned is only $81 at Summit. So I suppose that might make it the cheapest of the small cams.

http://www.summitracing.com/parts/sl...i10aAlAs8P8HAQ

[ponyakr]

The Melling SPC-4 also fits in the small cam category.

http://www.summitracing.com/parts/me...w/make/pontiac

Auto Zone & O'Reilly both show it for $91 + tax.

http://www.autozone.com/1/products/2...ing-spc-4.html

http://www.oreillyauto.com/site/c/de...2244&ppt=C0364

[PunchT37]

9 to 1? I`d go with this;

http://www.lunatipower.com/Product.aspx?id=1774&gid=287

[Squidward]

I am also a fan of Voodoo cams so far, running one now.

I've ran the Summit 2800 in a 350. The only reason I'd run that over the Voodoo cam ^ is because the lift is a little more sedate. I don't know if 092 heads are press in or screw in studs. I ran the 2800 with press in studs - no problems at all. Good street cam, lots of fun. If your heads are up to the task for the extra lift, then that Voodoo cam looks cool.

[hurryinhoosier62]

Originally Posted by PunchT37

9 to 1? I`d go with this;

http://www.lunatipower.com/Product.aspx?id=1774&gid=287

That grind is awfully close to the old High Energy cams Comp Cams used to sell. I ran the 262 HE in my GP. Good performance, but it wasn't recommended for less than 350ci.

[b-man]

Originally Posted by Squidward

I am also a fan of Voodoo cams so far, running one now.

I've ran the Summit 2800 in a 350. The only reason I'd run that over the Voodoo cam ^ is because the lift is a little more sedate. I don't know if 092 heads are press in or screw in studs. I ran the 2800 with press in studs - no problems at all. Good street cam, lots of fun. If your heads are up to the task for the extra lift, then that Voodoo cam looks cool.

The common non-SD '66 and earlier heads are all press-in stud. On top of that they don't have guide plates either, just a guide slot milled into the head casting itself.

Makes me hesitant to use too much lift or stiff valve springs without at least converting to screw-in studs. Pretty much the reason I would recommend using a factory cam.

[gtofreek]

This is the Voodoo we are putting in a 326 at the shop now.

http://www.lunatipower.com/Product.aspx?id=1773&gid=287

I think it would be more appropriate for a 326.

[77 TRASHCAN]

Paul,
Looks good to me.
Can you tell us more about this particular 326 build? Might help OP'er w/ his Dad's build

[hurryinhoosier62]

Originally Posted by gtofreek

This is the Voodoo we are putting in a 326 at the shop now.

http://www.lunatipower.com/Product.aspx?id=1773&gid=287

I think it would be more appropriate for a 326.

That looks more like it...

[ponyakr]

"..Want to achieve min power as the 326ho..."


I may not understand, by this quote from the OP, exactly what he means. But, it appears that he only wants a stock power level for a 326HO. What was that ? 285hp ?

It seems that some of you guys are trying to recommend a cam that will increase his power level quite a bit above the "min power as the 326ho". A Voodoo cam will definitely increase cylinder pressure, and power. Also, at 9:1 SCR, the Voodoo may get his engine up into detonation territory, with low octane gas.

I believe he said his deck height is .025. With the pistons that far in the hole, + .027 thick gaskets, that adds up to .052 quench distance, if I understand that deal correctly. I've read that many feel the quench should be no more than about .040, to help prevent detonation. If all this is wrong, I stand corrected. I'm not the expert engine builder some of you guys are.

So, I'll just put this into a question form. Do ya'll think a Voodoo cam will give the OP more power than he is seeking, and possibly increase his dynamic compression closer to possible detonation, with pump gas ? Or do ya'll think it's exactly what he's lookin for ?

[Tim Corcoran]

With 9:1 compression and the nice exhaust system you have I would go with the factory 068 cam, but if you had screw in studs and pushrod guide plates I would use the Voodoo 10510700. Not matter what cam you end up using make sure you use the Hi-Lift Johnson 951-R lifters.

[gtofreek]

Originally Posted by ponyakr

"..Want to achieve min power as the 326ho..."


I may not understand, by this quote from the OP, exactly what he means. But, it appears that he only wants a stock power level for a 326HO. What was that ? 285hp ?

It seems that some of you guys are trying to recommend a cam that will increase his power level quite a bit above the "min power as the 326ho". A Voodoo cam will definitely increase cylinder pressure, and power. Also, at 9:1 SCR, the Voodoo may get his engine up into detonation territory, with low octane gas.

I believe he said his deck height is .025. With the pistons that far in the hole, + .027 thick gaskets, that adds up to .052 quench distance, if I understand that deal correctly. I've read that many feel the quench should be no more than about .040, to help prevent detonation. If all this is wrong, I stand corrected. I'm not the expert engine builder some of you guys are.

So, I'll just put this into a question form. Do ya'll think a Voodoo cam will give the OP more power than he is seeking, and possibly increase his dynamic compression closer to possible detonation, with pump gas ? Or do ya'll think it's exactly what he's lookin for ?

9:1 with that Voodoo cam will be no problem. The 326 is all ready less detonation prone because of it's small cylinder bore. Also, the timing of the in/ex lobes on the Voodoo's will really help with reducing detonation. I wouldn't even worry about detonation with this engine combo. .052" quench isn't ideal, but as I said, the small bore will help with that.

I feel the 068 is too big for a 9:1 326. I think it will kill the bottom end too much, and with these small engines, they need all the bottom end help they can get to get the car moving off the line.

[77 TRASHCAN]

Originally Posted by gtofreek

9:1 with that Voodoo cam will be no problem. The 326 is all ready less detonation prone because of it's small cylinder bore. Also, the timing of the in/ex lobes on the Voodoo's will really help with reducing detonation. I wouldn't even worry about detonation with this engine combo. .052" quench isn't ideal, but as I said, the small bore will help with that.

I feel the 068 is too big for a 9:1 326. I think it will kill the bottom end too much, and with these small engines, they need all the bottom end help they can get to get the car moving off the line.

X2
.052 quench isn't ideal, but w/ the already machined short block, it will help. Many have quoted that .060 is the max quench distance. .052 will help a lot.

[OE Espo]

The cometic .027" gaskets aren't installed yet. Just ordered them Friday. Only reason was to get the SCR from 8.85 to 9.1. So its cheap to back to std. Felpro 8518's but I also thought the gasket bore was too big. I guess the idea is maximize hp (at least 285) 300 would be nice while still exhibiting good street manners for weekly cruise nights. I appreciate everyone's input as I'm certainly no expert in spec.ing out an engine. Aiming for the best results at this stage of the project with the parts we have ready to go. I'm getting a little lost in the max quench. Thanks guys. With your help we will get it together soon I hope.

[Squidward]

Originally Posted by gtofreek

This is the Voodoo we are putting in a 326 at the shop now.

http://www.lunatipower.com/Product.aspx?id=1773&gid=287

I think it would be more appropriate for a 326.

Looks like very similar specs to the 2800, but with better lobes.

OE Espo, please keep us posted on the build. I like to see what people are doing with the smaller inch builds. And Paul, I'd also like to find out how that 326 build in the shop goes.

[gtofreek]

Originally Posted by 77 TRASHCAN

Paul,
Looks good to me.
Can you tell us more about this particular 326 build? Might help OP'er w/ his Dad's build

Been here for almost 2 years now. Been waiting on customer to bring in the heads I did for the engine he's running now. Then I can build it. But he's a busy man who travels a lot, so when he's ready, I will finish. It's just a cast piston 326 with the 1964 heads on it that I put slightly larger valves in and did a bowl blend. He has tri-power for it also. It's going in a 64 LeMans convertible. He has a 200-4R tranny, with 3.73 posi in the rear.