NA 500hp, how cheap is it really?
On The Tree
Joined: Mar 2020
Posts: 168
Likes: 110
From: Weatherford TX
My post was specifically related to this:
Which was a response to my quoting another member on here who runs 7's and ran back to back with a rec vs. a cath and had more success with the cath. In HIS example, the rec didn't flow more. Happy to read more data if you'd like to share instead of 2 cryptic sentences 
On The Tree
Joined: Mar 2020
Posts: 168
Likes: 110
From: Weatherford TX
My post was specifically related to this:
Which was a response to my quoting another member on here who runs 7's and ran back to back with a rec vs. a cath and had more success with the cath. In HIS example, the rec didn't flow more. Happy to read more data if you'd like to share instead of 2 cryptic sentences
Which was a response to my quoting another member on here who runs 7's and ran back to back with a rec vs. a cath and had more success with the cath. In HIS example, the rec didn't flow more. Happy to read more data if you'd like to share instead of 2 cryptic sentences
Last edited by Last 1; Mar 22, 2020 at 11:54 AM.
On The Tree
Joined: Mar 2020
Posts: 168
Likes: 110
From: Weatherford TX
Every port has it's purpose. No wrong or right port if that makes any sense. Some like the smaller intake runners smaller valve stuff vs big runner bigger valves. So many variables come into play when building a combination. How a setup is cammed can also make a certain port shine more than others. Personally I prefer the square and rectangular ports more than the cathedral ports as I like high RPM high compression engines. 10k RPM+.... yet on some builds I do prefer to run a cathedral head. We do plan making some NA test on streetable mild compression engines 1st. Then end up doing some race focused builds. We plan on doing basic flow bench vids with tech behind it. I'm the type that doesn't get too hung up on flow numbers vs real world conditions like a running engine, air temps, dyno testing and track testing. I'd love to get feedback from this forum on what people would like to see and know more about. Maybe I will need to make a thread about this to so we don't get this one derailed.
This thread was derailed on page one so don't sweat it but I'd be down for another thread. I'd like more info on your statement about "some builds you prefer cathedrals." What instances would you prefer those over square/rec?
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TECH Addict
Joined: Sep 2010
Posts: 2,898
Likes: 467
Every port has it's purpose. No wrong or right port if that makes any sense. Some like the smaller intake runners smaller valve stuff vs big runner bigger valves. So many variables come into play when building a combination. How a setup is cammed can also make a certain port shine more than others. Personally I prefer the square and rectangular ports more than the cathedral ports as I like high RPM high compression engines. 10k RPM+.... yet on some builds I do prefer to run a cathedral head. We do plan making some NA test on streetable mild compression engines 1st. Then end up doing some race focused builds. We plan on doing basic flow bench vids with tech behind it. I'm the type that doesn't get too hung up on flow numbers vs real world conditions like a running engine, air temps, dyno testing and track testing. I'd love to get feedback from this forum on what people would like to see and know more about. Maybe I will need to make a thread about this to so we don't get this one derailed.
An L9H (Gen IV 6.2L aluminum block w/ rectangular port heads) can be had for under $3000 complete with harness, ECM, and accessories. I paid $1250 for my L96 (Gen IV 6.0 iron block w/ rectangular port heads). I'm a little confused as to why everyone acts like you'd be limited to a Gen III LQ4/9 or Gen IV LS3 here. I'm running an LS3 intake manifold purely for hood clearance reasons, otherwise I'd still be using the stock truck manifold b/c it's been shown to make just as much power as the LS3. With a cam, long tubes, and a good tune you can make ~550 flywheel hp which I think is about the best bang for your buck. That next 50 hp that will get you to 500 rwhp is going to be a bit pricier, however.
