NAVYBLUE210

Your Post #191 references a HPR 468" Build by EK that
Specifies MMS 265 LS 7 Heads on the 2nd thread of the
4 that YOU linked. It seems like a different build
altogether creating the confusion.

Che70velle

iTrader: (6)

Yeah, if he didn’t switch heads, that’s two separate builds.

Che70velle

iTrader: (6)

Patron, the beauty of what Tony is doing with his ls7 program is that you get big power everywhere. Yeah, they are $4500. I chose them because the chevelle is a street car only. I’ll never go down a strip. I will do an auto cross or two, but that requires a engine that makes big torque down low. You know this stuff.
If I was building a drag engine, I would go a cheaper route. It’s easy to make big power up high. It’s easy to make big power down low. It’s not easy doing both, and that’s what Tony has figured out. Is it worth the $$$? I’ll let you know....Haven’t drove mine yet. Peace.

Patron

Yea I got confused as Eric told me to follow the build and with it being 7.7 468 I did get it confused.

Tony's not the only guy who's figured it out he's just the guy here on Ls1 tech and guy's live here will not or won't go to other sites. Those heads you have are only TFS 260cc heads with a hand job that he made into a Cnc program. I've followed Tony since when he had the 383 and before that. Oh I know heads......Besides that I would like to see some independent numbers of cc and cfm. Cause from what I see there no better than a good worked head high,low or midrange in the rpm. What a 2% in TQ difference make a head worth 4500... Also has Mamo heads won any Optima challenge stuff? You guys are just going by what you see and not who's winning races drag or real world autocross included. That's just my OP and many others here have sent me PM's or phone call/text about the 4500 and I'm the first to just come out and say it. I'm not hating if you like it I LOVE it. But if you run up and get done in by a factory set of heads.... I posted about z06 tanner go youtube his stuff I'm a follower. Eating for lunch.

tug686spd

iTrader: (11)

Patron I think you can ramble on pretty good and I sometimes really enjoys reading your conversations with yourself. But this post by you is some good truth. Don't know mamo and have nothing against him but he's one hell of a salesman. Everyone knows dynos and flow benches can be manipulated. What can be but is much harder to manipulate is who is winning. I always tell people to do their own research and not to just go with the name you hear the most. Ls1tech and about all forums have a lot of real good info if your willing to look for it. Forums are starting to turn into social media in my opinion. Everybody just wants to post something whether is relevant or not, most just trying to get their post count up because it's a popularity contest I guess. Prime example of this on the last page. My ***** slow so I got no leg to stand on here ( for now).

Patron

I honestly could care less about who are what Anybody thinks. I post to tell or show stuff to others. If a person doesn't like what I'm stating that's on you or to whomever it's my OP. And I don't lie no need to. When I post stuff it's the same things that I've thought of and post it cause I know Maybe someone in the world may have thought of it also or is wanting to know..some guys are just followers are Too damn scared to ask/find or say anything....Not ME! Ok here's a example you got a 454 that Tony did higher compression an high dollar heads.....here goes a 427 Ls3 with factory Ls3 heads lets just swap the intake and add some compression to match. What do we have cheaper or change to a set of $2800 dollar ls7 heads. About the same damn numbers both in HP and TQ. Dudes don't get that all engines are the same. And if you know what to look for and who to talk to it's even cheaper. Why you think I canceled doing the 5.3 re sleeve added up the cost.....I got everything to make what I was asking for with a smaller cubic build so no money is wasted. As my friend Mike from VA would say: You done went and F'ed off the churches money now. But to each is their own. I like Winners or the Best in whatever field I'm thinking.

http://www.yellowbullet.com/forum/sh....php?t=1204610
Do the math change the intake add compression then what. Saved some $ I like knowing how to take down high dollar stuff cheaper. We ain't all rich!

Che70velle

iTrader: (6)

I spoke with z06tanner about porting my GM castings. His prices are very affordable, and his work is beautiful. Nice guy to boot.

Patron

Yea I know, and he's whipped up a few hierarchy combinations with factory heads. I'm not knocking anyone it's just I find the guy who doing the winning and spending doesn't always win races. That's why I follow certain builders as I know they can make more with less and if given more they'll make even more. Who would have thought about a 408 junk yard block with ProComp ls7 heads making 800+ on pump gas @ 8k Ls3 heads weren't enough(as I love heads). Now if you look inside there's $1k lifters, good vacuum pump etc. It's not always what you know it's Who you know cause there is more that has done more than one person has or can. So I look to find who's doing what with what. For instance ER racing came on here did a thread about some $h!+ he had laying around and I've not found a better THREAD yet. On any site. He gave me pointers and ideas*Ls7 heads on a small bore*He did this one also with factory style heads 2.20/1.60. Some builds I make a booklet of such as, a 376 making 800hp wink,wink wonder whos build this is and where these stupid or crazy ideas he has come from(being me). I liked this one and these guys also, talked to them too. I'm a follower and can only follow someone who won't leave me broke wanting more HP. Your talking about mid range TQ it's so much there they can give it away. LOL! Also look at the peak RPM of this thing. I love all engines not just one maker the better the heads the more I like. Thinking of a sell (5.3)and side hobby a engine and it looks like this. For what I'd have in a resleeve 5.3 I could have a complete 428sb FE short block.

http://www.hotrod.com/articles/fords...n-small-block/

A cheap 512 bbf is a idea also with Boss 9 heads this or a windsor...... I love engines but crave cylinder heads.

Patron

I'm thinking of the one post about a FE engine....LMAO.

Darth_V8r

iTrader: (4)

I think that was HioSSilver making fun of me, because I like Pontiac engines

That was a funny post

HioSSilver

iTrader: (8)

I couldn't help it.

big hammer

Big cheef runs a traditional Pontiac and he can’t be beet!

Patron

IDK if I posted this one but kinda like it.

http://www.lsxmag.com/tech-stories/e...-will-it-make/

Patron

Found this one looking around expected a bit more maybe I didn't look over it as good being late. 427 TFS cnc 260cc LS7 heads/MSD intake/BTR stage4 cam . 650 HP. Guess you'd need to add 2500 for porting the heads and intake. A GZ vacuum sounds even better.
http://www.powerperformancenews.com/...427-lsx-build/

Che70velle

iTrader: (6)

Nice! I have a friend who has this exact combination, minus the iron block, in his c6z. Same camshaft, and his heads aren’t ported, makes 590ish at the tire.

Darth_V8r

iTrader: (4)

Curious how that would do with ITB

Patron

My thing was I know of 2 or 3 builds and a article in particular that are smaller in size 408/416 with less cam and heads that made just as much. Around 30hp down as far as peak with one being 239 duration vs a 247 duration cam. I know and understand it's the small details and different dynos read differently but I was expecting at min 675 to 670 from that build. The bigger is better rule with more potential still applies but found this build lackluster. This is a quick one everyone knows about.

baseline :427
658 hp at 6,600 rpm and 587 lb-ft of torque at 5,000 rpm.

408 11.5 compression FAST intake 0.624 lift (with 1.72:1 rocker ratio), 239/247 duration (at 0.050), and a 114-degree lobe-separation angle. 1 & 7/8-inch header

Peak power: 629.1 hp at 6,600 rpm
Peak torque: 557.0 lb-ft at 5,400 rpm
This is with some call junk in Pro Comp Ls1 heads at that.

Darth that adds in cost and it has a MSD intake as is, heck look at the cash spent which isn't that bad after you get a block for the larger engine. But it doesn't even really out do a cheaper build with less cam. I'd be made as hell with these results and a damn 408 with a Chinese head gnawing on my ankles. Darth as you know it's Funny I've got a set of those Chinese heads in the Ls7 version. Anyone down for some cheap good Kung Pao Chicken.

Patron

Switch to a solid roller and then let the party begin. Here's another that TuskeyZ talked about.

http://www.superchevy.com/how-to/eng...-supersize-me/
416 factory Ls3 heads cnc ported: 622 hp at 6,200 rpm and 574 lb-ft at 5,250 rpm. Cam Motion 235/250-at-0.050 hydraulic roller camshaft with 0.646/0.642-inch lift

Still a smaller cam is or was used. Some mid range TQ would be missing with a larger cam but I can get pass that (stall and or gear for manual gears kills that issue) just as I'm past cfm flow numbers finally.

08Z

Just thought Id chime back in after the visit to the dyno last weekend... All those numbers are nice and all but those are all on engine dynos. We just put down 640whp and 588wtq. Power at the wheels... somewhere over 750 hp if on an engine dyno

Patron

Glad to hear from you after my mix up. Brother your not losing 110 to the rear with a manual trans. Hears a read for you and the thought of a solid roller. Either head where done by the guys I told you about. I understand about adjusting the lash sometimes but the added HP along with TQ may be something you like. Factory Ls 7 with a few parts.

https://ls1tech.com/forums/dynamomet...-700-rwhp.html