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[Z06] • • • RPM CNC LS7 Heads - Flow Numbers • • •

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Old 08-02-2008, 12:19 PM
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0C_Williams@RPM
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Default • • • RPM CNC LS7 Heads - Flow Numbers • • •

RPM Motors Inc., Introduces our CNC LS7 Cylinder Heads

Complete CNC ported LS7 cylinder heads utilizing either new GM LS7 Castings or your Cylinder Heads.

$1095 (EXCHANGE PRICE FOR CUSTOMERS WITH LS7 CYLINDER HEADS)

Options & Upgrades

• Custom chamber volume for higher compression
• Upgraded Springs, Ti Retainers, Spring Cups and Super 7 Locks
• Jesel Rocker Arm Machining and Assembly
• Complete engine, cam and installation packages
• Intake Manifold Porting







I am really excited about the flow numbers we have been able to coax out the LS7 cylinder heads and you will love the performance gains whether for street, track, or drag racing.


Please call for delivery and option pricing.

Last edited by C_Williams@RPM; 08-04-2008 at 03:04 PM.
Old 08-02-2008, 05:51 PM
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Steve Theodore
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Nicely done!
Old 08-02-2008, 06:05 PM
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Turbooo2u
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Any horsepower to be achieved with these heads mated to the stock cam with the usual bolt-ons?
Old 08-02-2008, 06:24 PM
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SidePipeMusic
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Originally Posted by Turbooo2u
Any horsepower to be achieved with these heads mated to the stock cam with the usual bolt-ons?
You took the words out of my mouth.
Old 08-02-2008, 09:54 PM
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805Z06
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I saw the heads today at Charlie's shop. Very well done. I hope to upgrade to these heads in the near future..I could always use some more hp thanks for the info Charlie.

BTW... I can't wait for the break in to finish...the car drove very smoothly.
Old 08-03-2008, 01:43 PM
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Redline Motorsports
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Nice work Charlie!

Looking foward in hearing some results!

Howard
Old 08-03-2008, 03:52 PM
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double06
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Default Flow numbers

Very nice what does the factory head look like for comparison on the same flow bench?
Old 08-03-2008, 05:09 PM
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0Cunningham Motorsports
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i remember you telling me about these heads....... great work!!
Old 08-04-2008, 12:42 AM
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RossN
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So these are worth about what, 40rwhp?

Does low rpm day to day driving suffer at all compared to stock?

Results look good.
Old 08-04-2008, 01:03 AM
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Jorday
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Very impressive. Looks like the exhaust numbers have been very significantly improved over stock as well. When I see stuff like this I wish I had just went with heads/cam on my car and called it a day.
Old 08-04-2008, 01:11 AM
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ayousef
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Originally Posted by Jorday
Very impressive. Looks like the exhaust numbers have been very significantly improved over stock as well. When I see stuff like this I wish I had just went with heads/cam on my car and called it a day.
youll delete this post when you get the car back actually you wont be able to delete it and ill remind you of what you said.

Now those heads sure do flow, man thats damn impressive to say the least
Old 08-04-2008, 01:17 AM
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Jorday
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Originally Posted by ayousef
youll delete this post when you get the car back actually you wont be able to delete it and ill remind you of what you said.
Probably so. You'll have to bump this one when I get the car running. Maybe I should edit while there's still time. Actually that won't even work now that you have me quoted lol.

As far as these heads...Going by these flow numbers they are better than the ALL PRO on the exhaust by 15 CFM..or more.

Last edited by Jorday; 08-04-2008 at 01:21 AM.
Old 08-04-2008, 01:50 AM
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Originally Posted by Jorday
Probably so. You'll have to bump this one when I get the car running. Maybe I should edit while there's still time. Actually that won't even work now that you have me quoted lol.

As far as these heads...Going by these flow numbers they are better than the ALL PRO on the exhaust by 15 CFM..or more.
Havent done a benchmark head to head comparison with numbers however since you mentioned it, thats like better than the best heads around
Old 08-04-2008, 03:28 AM
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gripforce-c6
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Default Wow, now tha't impressive

Wow, that's very impressive... Is my Z going to have that flow numbers as well? Now, I can't wait 'til get my Z back You da man Charlie!!!
Old 08-04-2008, 03:38 AM
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HNK
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Originally Posted by Jorday
Very impressive. Looks like the exhaust numbers have been very significantly improved over stock as well. When I see stuff like this I wish I had just went with heads/cam on my car and called it a day.
Using a pipe usually give higher numbers for the exhaust. You wont get that much with your headers. nevertheless, great numbers and should put a smile on our faces.
Old 08-04-2008, 10:21 AM
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aTX427
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Charlie, how many cc's are the runners and what does the exhaust flow without the pipe?
Old 08-04-2008, 11:51 AM
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Jorday
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Originally Posted by HNK
Using a pipe usually give higher numbers for the exhaust. You wont get that much with your headers. nevertheless, great numbers and should put a smile on our faces.
Well I guess the question is how were the others tested.

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To • • • RPM CNC LS7 Heads - Flow Numbers • • •

Old 08-04-2008, 03:07 PM
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0C_Williams@RPM
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Originally Posted by Turbooo2u
Any horsepower to be achieved with these heads mated to the stock cam with the usual bolt-ons?
These heads and the ported Intake will add power everywhere in the curve.

Best additional adders would be headers and cam - expect 580 -600 at the tires, depending on mods.
Old 08-04-2008, 03:08 PM
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0C_Williams@RPM
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Originally Posted by RossN
So these are worth about what, 40rwhp?

Does low rpm day to day driving suffer at all compared to stock?

Results look good.
.....depending on supporting mods, much more
Old 08-04-2008, 03:11 PM
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0C_Williams@RPM
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Originally Posted by Jorday
Probably so. You'll have to bump this one when I get the car running. Maybe I should edit while there's still time. Actually that won't even work now that you have me quoted lol.

As far as these heads...Going by these flow numbers they are better than the ALL PRO on the exhaust by 15 CFM..or more.
I've flowed the All-Pro heads and they are awesome - however, my CNC LS7's do not give up anything down low and flow on par with All Pro's up to .700 lift.


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