Which heads and intake for an LS7 440
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Teching In
Joined: Jan 2007
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Which heads and intake for an LS7 440 1.25" bore 4.1" Stroke
I have a fast and milled 225s right now but the heads won't work for the LS7.
What is your recommendation? Ported LS7 and LS7 intake?
Or TFS 235 and ported fast.
I have a fast and milled 225s right now but the heads won't work for the LS7.
What is your recommendation? Ported LS7 and LS7 intake?
Or TFS 235 and ported fast.
Have you checked out the PRC line-up of CNC ported LS7 heads yet?
http://www.texas-speed.com/shop/item...d=912&catid=40
For just a few $$ more than a stock GM LS7 head we can offer you aftermarket CNC ports (flow figures are listed on that page I linked to) AND a dual spring kit. Think of it as getting an extra 30rwhp for an extra $300 over the stock GM head! We've seen 600+rwhp on several 427 LS7 cars so far with just Kooks headers/X, the PRC heads/cam package, and a ported LS7 intake manifold.
Let me know if I can help with anything you need. We do alot of R&D on these heads with bigger cubic inch powerplants to be sure we can provide some of the best tech help out there to our customers!
http://www.texas-speed.com/shop/item...d=912&catid=40
For just a few $$ more than a stock GM LS7 head we can offer you aftermarket CNC ports (flow figures are listed on that page I linked to) AND a dual spring kit. Think of it as getting an extra 30rwhp for an extra $300 over the stock GM head! We've seen 600+rwhp on several 427 LS7 cars so far with just Kooks headers/X, the PRC heads/cam package, and a ported LS7 intake manifold.
Let me know if I can help with anything you need. We do alot of R&D on these heads with bigger cubic inch powerplants to be sure we can provide some of the best tech help out there to our customers!
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
All depends on your budget, you have a few options. Ported OEM heads like from TSP or a few of the other sponsors as well or an aftermarket head.
The aftermarket is going to be more money but you have TFS, All Pro, ET, Dart. The LS7 intake is fairly decent for and OEM intake and comes in a nice package deal from SDPC but then you need an LS7 style head to go with it...like the ET or All Pro or oem ls7 head.
We carry all of the above, if your interested give me a call and I can answer some questions for you. You can make good power with either direction.
The aftermarket is going to be more money but you have TFS, All Pro, ET, Dart. The LS7 intake is fairly decent for and OEM intake and comes in a nice package deal from SDPC but then you need an LS7 style head to go with it...like the ET or All Pro or oem ls7 head.
We carry all of the above, if your interested give me a call and I can answer some questions for you. You can make good power with either direction.
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Joined: Aug 2005
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From: Sunny London, UK
I have the same setup coming and went with GMPP LS7 and Ported LS7 intake. Idea was best performance from small emissions cam. Im expecting the large valves to help with this approach and believe that was also part of GM's remit with these heads.
I have a 441ci with ported and polished LS7s putting out 743fwhp and 634fwtq. But, I'm also using a carb. The carb intake flows more than the standard LS7 from what I know. If you want fuel injection, I'd recommend the carb intake and an elbow or a carb style throttle body.
Edit: Forgot to mention that power is on pump gas.
Edit: Forgot to mention that power is on pump gas.
Last edited by toneloc60; Aug 12, 2008 at 12:43 PM.
