head size
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Buy a set of 195 eliminators for $1550 and be done with it. You get what you pay for. The extra power they will make compared to anything else is the cheapest HP you will buy.
Thread Starter
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
OK...NOW I've got you. Sorry...misinterpreted the whole thing from what you were thinking.
Now...we're talking a screamer huh?
Start with the Wallace Calculators to get an idea of cross sectional area needed for your RPM plans and cubes.
I witnessed a pump gas 327 a few years ago on the dyno with a set of 200cc heads that received some porting afterwards along with a solid flat tappet. He got it a little over 500 HP up around 6800-6900...and it hung on well to 7500. Cam was in the 260* range. Figure that's over 1.5 HP per cube...or similar to an 800 HP 540. Pretty good for a pump gas deal! Solid roller could have added to that. Or maybe even a good HR....they spin well on small blocks with good lifters.
Chad Spier is doing some neat stuff with SBC heads that turn some RPM. And his prices are decent also.
JIM
Now...we're talking a screamer huh?
Start with the Wallace Calculators to get an idea of cross sectional area needed for your RPM plans and cubes.
I witnessed a pump gas 327 a few years ago on the dyno with a set of 200cc heads that received some porting afterwards along with a solid flat tappet. He got it a little over 500 HP up around 6800-6900...and it hung on well to 7500. Cam was in the 260* range. Figure that's over 1.5 HP per cube...or similar to an 800 HP 540. Pretty good for a pump gas deal! Solid roller could have added to that. Or maybe even a good HR....they spin well on small blocks with good lifters.
Chad Spier is doing some neat stuff with SBC heads that turn some RPM. And his prices are decent also.
JIM
Thread Starter
Le Mans Master
Joined: Apr 2006
Posts: 5,403
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But when i find out the cost that will probably change any thought of it. lol.
Last edited by Little Mouse; Mar 24, 2014 at 10:51 PM.
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
If the 195's are good for 6500 rpm on a 350" what do you suppose there peak would be on a 331"? If the 210's are good from 3000 rpm to 7500 rpm on a 350" to a 400" do you think that they'd pull to 8000 rpm or 8200 rpm on a 331", or do you think valves might be to close to the cylinder walls and hinder flow, do the comp ported 195's pull peak power at high rpm with the larger valve diameter and the bore if the 331"? I've got a friend putting the 195's on a 302" should be interesting. Little mouse ddint sua what rpm he wanted peak hp to occur.
Last edited by bluedawg; Mar 24, 2014 at 11:08 PM.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
AFR 195 @ .300 Int 201 Ex 166, .500 275/213, .600 280/218
Profiler 195 @ .300 Int 205 Ex 144, .500 277/194, .600 281/205
The Profiler do flow a little more on the intake side, weaker on the exhaust. I would rather have the higher I/E ratio to go with a little smaller exhaust side on the cam duration = less overlap especially if you end up with 250-260 duration @ .050. Then you need everything you can get to reduce whatever overlap you can. The profilers are a little cheaper.
http://www.users.interport.net/s/r/s...ehdc.htm#Chevy
http://www.airflowresearch.com/index.php?cPath=24_29
Profiler 195 @ .300 Int 205 Ex 144, .500 277/194, .600 281/205
The Profiler do flow a little more on the intake side, weaker on the exhaust. I would rather have the higher I/E ratio to go with a little smaller exhaust side on the cam duration = less overlap especially if you end up with 250-260 duration @ .050. Then you need everything you can get to reduce whatever overlap you can. The profilers are a little cheaper.
http://www.users.interport.net/s/r/s...ehdc.htm#Chevy
http://www.airflowresearch.com/index.php?cPath=24_29
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
AFR 195 @ .300 Int 201 Ex 166, .500 275/213, .600 280/218
Profiler 195 @ .300 Int 205 Ex 144, .500 277/194, .600 281/205
The Profiler do flow a little more on the intake side, weaker on the exhaust. I would rather have the higher I/E ratio to go with a little smaller exhaust side on the cam duration = less overlap especially if you end up with 250-260 duration @ .050. Then you need everything you can get to reduce whatever overlap you can. The profilers are a little cheaper.
http://www.users.interport.net/s/r/s...ehdc.htm#Chevy
http://www.airflowresearch.com/index.php?cPath=24_29
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Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Thread Starter
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
Some of the bigger 23 heads can show just as good flow numbers compared to some raised changed valve angle head, which head would you want.
Last edited by Little Mouse; Mar 25, 2014 at 07:28 AM.
Melting Slicks
Joined: Mar 2008
Posts: 2,666
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From: Spring Park MN
It's getting easy to get LS motors and easy to make power with them. just not the same. If I was building a daily driver for my wife, maybe.
Thread Starter
Le Mans Master
Joined: Apr 2006
Posts: 5,403
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Myself, I like to keep it old school 23 degree. It's just seeing what you can get out of an almost 60 year old design that gives me satisfaction. It's like making big power out of Harleys. Make a tractor fly. It's more fun for me.
It's getting easy to get LS motors and easy to make power with them. just not the same. If I was building a daily driver for my wife, maybe.
It's getting easy to get LS motors and easy to make power with them. just not the same. If I was building a daily driver for my wife, maybe.
On a different subject got my new light weight rods. Beam width is scary to look at going to call flatlander racing send them back for something else. go with a 6.00 length longer stroke. have to shop at eagle for a 3.250 don't really like that and it causes to many problems on parts match up.
Last edited by Little Mouse; Mar 25, 2014 at 09:42 AM.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
If you like Harleys but its expensive to get one to run when the factory could make one run at least decent no excuse for it.
On a different subject got my new light weight rods. Beam width is scary to look at going to call flatlander racing send them back for something else. go with a 6.00 length longer stroke. have to shop at eagle for a 3.250 don't really like that and it causes to many problems on parts match up.
On a different subject got my new light weight rods. Beam width is scary to look at going to call flatlander racing send them back for something else. go with a 6.00 length longer stroke. have to shop at eagle for a 3.250 don't really like that and it causes to many problems on parts match up.
http://www.speedwaymotors.com/Scat-4...ain,37907.html
There are off the shelf lightweight 2.00 6.125 rods.
http://www.summitracing.com/parts/esp-6125slw/overview/
and this gets you a Piston compression height of 1.233 to 0.00 deck. These put you .013 in the hole.
http://www.summitracing.com/parts/hr...make/chevrolet
Paired with a Cometic .027 gasket this gets you .040 quench
This gives you a super lightweight rotating assembly with good quench, a 5 CC mini domed race forged piston and 4340 H beam rods with ARP bolts and 12.6 to 1 compression with AFR 195 heads. Should stay together @ 8000 RPM and be able to cam it big enough to run pump gas and pull the RPM your looking for.
This cam gets you about 8.5 to 1 DCR, the right operating range, and adequate lift for the heads.
http://www.compcams.com/Company/CC/c...?csid=222&sb=2
The AFR heads come with lightweight valves. Upgrade springs to the 8019 and ask about titanium retainers.
Last edited by 63mako; Mar 25, 2014 at 10:44 AM.
Thread Starter
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
I think im just panicking after comparing them to my standard weight rods. These are 503 in weight probably same steel company in china making all these rods just different people in the states doing the final work. Callies 525 gram lightweight rod they claim 650 hp at 7500 rpm rating same 3/8 bolts. Going to buy two carbs for my offy cross ram clone manifold give it a whirl.
Thread Starter
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
Scat makes a 3.335 stroke crank. It is lightweight and has the 2.00 rod journal 'Lighter than 2.10".
http://www.speedwaymotors.com/Scat-4...ain,37907.html
There are off the shelf lightweight 2.00 6.125 rods.
http://www.summitracing.com/parts/esp-6125slw/overview/
and this gets you a Piston compression height of 1.233 to 0.00 deck. These put you .013 in the hole.
http://www.summitracing.com/parts/hr...make/chevrolet
Paired with a Cometic .027 gasket this gets you .040 quench
This gives you a super lightweight rotating assembly with good quench, a 5 CC mini domed race forged piston and 4340 H beam rods with ARP bolts and 12.6 to 1 compression with AFR 195 heads. Should stay together @ 8000 RPM and be able to cam it big enough to run pump gas and pull the RPM your looking for.
This cam gets you about 8.5 to 1 DCR, the right operating range, and adequate lift for the heads.
http://www.compcams.com/Company/CC/c...?csid=222&sb=2
The AFR heads come with lightweight valves. Upgrade springs to the 8019 and ask about titanium retainers.
http://www.speedwaymotors.com/Scat-4...ain,37907.html
There are off the shelf lightweight 2.00 6.125 rods.
http://www.summitracing.com/parts/esp-6125slw/overview/
and this gets you a Piston compression height of 1.233 to 0.00 deck. These put you .013 in the hole.
http://www.summitracing.com/parts/hr...make/chevrolet
Paired with a Cometic .027 gasket this gets you .040 quench
This gives you a super lightweight rotating assembly with good quench, a 5 CC mini domed race forged piston and 4340 H beam rods with ARP bolts and 12.6 to 1 compression with AFR 195 heads. Should stay together @ 8000 RPM and be able to cam it big enough to run pump gas and pull the RPM your looking for.
This cam gets you about 8.5 to 1 DCR, the right operating range, and adequate lift for the heads.
http://www.compcams.com/Company/CC/c...?csid=222&sb=2
The AFR heads come with lightweight valves. Upgrade springs to the 8019 and ask about titanium retainers.
After talking to people on flat tappit cams would not buy one without a pro 55 cam core.
Last edited by Little Mouse; Mar 25, 2014 at 10:58 AM.
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak