400 ci
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
http://www.users.interport.net/s/r/s...ehdc.htm#Chevy
This is strange. If you go to this site and scroll down to Pro-filer there are a variety of flow testing on the 195 and the 210. Looks to me like the 195 out of the box numbers are higher or at least comparable to the out of the box 210's even when the testing is done by the same person. Might want to check other sources and call profiler but if this is the case there is 0 advantage to the 210 vs 195. Flow is flow and better flow through a smaller port is a win win.
This is strange. If you go to this site and scroll down to Pro-filer there are a variety of flow testing on the 195 and the 210. Looks to me like the 195 out of the box numbers are higher or at least comparable to the out of the box 210's even when the testing is done by the same person. Might want to check other sources and call profiler but if this is the case there is 0 advantage to the 210 vs 195. Flow is flow and better flow through a smaller port is a win win.
This wouldnt have happened if only you'd payed attention!
Thread Starter
Racer
Joined: Aug 2012
Posts: 280
Likes: 0
From: Glendon Alberta
Says 1.525 dual spring, good for 0.650 lift, I haven't looked at cams really yet, other than what's been posted.
It's not that I didn't pay attn, more like tunnel vision, was bent on 64-5 cc heads.
It's not that I didn't pay attn, more like tunnel vision, was bent on 64-5 cc heads.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
http://www.castheads.com/removable_cylinders.php
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
I would go a little smaller cam and tighten up the lobe separation a little. The 70 cc heads will be a better build for your use. As far as the springs go get specs on them and compare to the recommended springs for the cam. If the seat pressure is close or higher and the INCH/LB rate is same or higher you should be fine.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
A .027 gasket or .021 if you can get it. Check with Cometic.
http://www.crower.com/camshafts/chev...-cam-9825.html
http://www.crower.com/camshafts/chev...-cam-9825.html
http://www.summitracing.com/parts/lu...make/chevrolet
Put a 2400 stall convertor in it either way. It will help a lot if your over 10 to 1 with a 3.55 gear.
Run your calcs with these cams and this gasket.
http://www.summitracing.com/parts/cg...-size/6-6l-400
I would probably go with the Crower.
Last edited by 63mako; Mar 21, 2014 at 12:50 AM.
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
It depends on the bore size they have. It really makes a negligible difference on the results 4.060 to 4.155. Here is a chart with back to back tests.
http://www.castheads.com/removable_cylinders.php
Last edited by bluedawg; Mar 21, 2014 at 02:14 AM.
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Melting Slicks
Joined: Mar 2008
Posts: 2,666
Likes: 289
From: Spring Park MN
In simple terms, it is how hard you suck on the port. Think about sucking on a straw. The harder you suck, the more air you pull through it. So 10 inches of water (small flow bench), light sucking. And 28 inches would be hard sucking.
Thread Starter
Racer
Joined: Aug 2012
Posts: 280
Likes: 0
From: Glendon Alberta
Parts list
Gets expensive fast, but this is $1500 and let's say the heads come in @$1500 puts us on budget.
I reused the lunati cam from earlier, only because I couldn't find that crower cam on summit.
There were other cam & lifter kits from Howard's that I considered, but I really don't know which to pick, this list is open to review, especially the timing set, I've never used a roller cam, so I really didn't know which to pick.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
That looks good. With 412 ci that cam should pull from 2000 to 5500 with 6000 redline. lift is 544/555 Should run on your 91 octane with timing @ 32-34 and proper tuning. It will really like a 2400 stall convertor to jump it into the powerband. Look for a source for the valvetrain components in Canada 
Had a 1976 L-82, 4-sp
Joined: Mar 2011
Posts: 5,338
Likes: 1,213
From: Some days your the dog and some days your the hydrant.
Royal Canadian Navy
I used MR Gasket head gaskets .028"(?) for about $35 ea.
http://www.summitracing.com/int/part...134g/overview/
http://www.summitracing.com/int/part...134g/overview/
Last edited by resdoggie; Mar 21, 2014 at 01:17 PM.
Thread Starter
Racer
Joined: Aug 2012
Posts: 280
Likes: 0
From: Glendon Alberta
Placed my order. No idea on timing. Going thru a buddy of mine, that's an authorized dealer for some performance brands. I started searching Canadian performance parts, not easy. All I really specified non negotiable was the profilers. Listed both the crower and lunati cam with preference to the crower.
Out side of that I left the roller rockers, lifters, timing set, stall converter to his discretion.
Now we WAIT. Almost sick over this, feel like I just jumped over a cliff. Hope it all pans out.
I think once parts start showing ill continue this thread with pics, I'll need help. I've never touched a roller cam before.
Out side of that I left the roller rockers, lifters, timing set, stall converter to his discretion.
Now we WAIT. Almost sick over this, feel like I just jumped over a cliff. Hope it all pans out.
I think once parts start showing ill continue this thread with pics, I'll need help. I've never touched a roller cam before.
Last edited by vettezobsezzed; Mar 21, 2014 at 02:14 PM.
Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,171
From: Hermosa
I used MR Gasket head gaskets .028"(?) for about $35 ea.
http://www.summitracing.com/int/part...134g/overview/
http://www.summitracing.com/int/part...134g/overview/
The bore is too small on that gasket. He needs at least 4.185".
Now we WAIT. Almost sick over this, feel like I just jumped over a cliff. Hope it all pans out.
I think once parts start showing ill continue this thread with pics, I'll need help. I've never touched a roller cam before.
I think once parts start showing ill continue this thread with pics, I'll need help. I've never touched a roller cam before.
Felt like I was making irreversible mistakes all along the way until I got it fired up and nothing came apart or failed.
You'll like the roller cam. I have on in my 350 and it has a nice strong broad midrange and still has good top to. With your 3.55 rear you'll love the new power.
don't go too cheap on the torque converter. If you do, you might have the pleasure of also replacing your transmission.
Your specs on that 284* duration cam look really good.
Glad Mako pointed you towards the .027" head gasket instead of the .040" one.
This way your quench will be .047, much better that .060" and it's the best you can do with that size bore it looks like.
Once the heads show up take the time to CC the chambers so you know exactly what the volume is. 70 cc advertised doesn't always mean that is what it really measures out at.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
I used MR Gasket head gaskets .028"(?) for about $35 ea.
http://www.summitracing.com/int/part...134g/overview/
http://www.summitracing.com/int/part...134g/overview/
Thread Starter
Racer
Joined: Aug 2012
Posts: 280
Likes: 0
From: Glendon Alberta
Same here, just stock overhauls. Puzzle pieces really, never sat down and made a plan like this. Been thinking about it for over a year, but until a couple weeks ago when I opend it up to measure, did I put any real thought to it. Hopefully it goes well, because if I toast it before I get out of the yard, the minister of finance (wife) is gonna be hard to sway for next time!
Thread Starter
Racer
Joined: Aug 2012
Posts: 280
Likes: 0
From: Glendon Alberta
Well, that's how it started out.. Was gonna keep it a little simple. Then it got a little technical, now I'm looking at this more as a stepping stone. Whether I build a 350 or another one of these, who knows. I've got a couple 350s kickin around, that's why I kept that in mind. If this goes good, who knows what's next. I'm excited and nervous. But I've stepped in it now, so here we go. I just really hope the choice to bring in a 3rd party to get my parts doesn't bite me in the ****. Shipping, tax, duty, is all kind of a surprise at the post office, so this should clear that up.
Been a couple hours since I made this a go, I'm feeling a lot better about it any way.
Been a couple hours since I made this a go, I'm feeling a lot better about it any way.