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***LMR LS3 heads (Pictures and flow numbers inside!)***

Old 05-16-2013, 05:00 PM
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Default ***LMR LS3 heads (Pictures and flow numbers inside!)***

So we have got a lot of response on these heads so far and are ready to start making some power!






Flow Numbers with stock size valves on 4.030" bore

Lift Intake exhaust w/o pipe
.300 215 145
.400 280 181
.500 322 215
.600 347 235
.650 360 245
.700 368 252


These arent your average fluffed up unicorn internet flow bench numbers. These are real world numbers.

Introductory pricing is 1899.99.
You send us your heads, We CNC/VJ/mill if needed/assemble with new .660 lift dual valve springs. Can do new stainless valves for an extra cost.

If you want to re use your existing valve springs the cost would be $1499.99 to port and valvejob them and re assemble.

Stainless valves for intake and exhaust Add $450
Springs good to .700 lift Add $250

Give us a call at the shop to get yours 713-466-9900
or shoot me an email at support@latemodelracecraft.com

Last edited by Late Model Racecraft; 06-03-2013 at 11:09 AM.
Old 05-16-2013, 05:32 PM
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Very Interested.

Any more details?

Low lift numbers?

Port volumes I/E

How much are the chambers opened up? 4.125" gasket required?
Old 05-16-2013, 05:43 PM
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if i had a stroker, would defintitely consider....
Old 05-16-2013, 05:46 PM
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What do you open the exhaust and intake runners up to?
Old 05-16-2013, 06:28 PM
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Those pictures and flow numbers are outstanding, so many decisions and little money
Old 05-16-2013, 08:35 PM
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Originally Posted by blackz97
Very Interested.

Any more details?

Low lift numbers?

Port volumes I/E

How much are the chambers opened up? 4.125" gasket required?
There really is no point to flowing a head at .100 and .200 as those numbers are normally only effected by valve job until the port gets really big.

Port volumes i'll try to get for you but i doubt they got poured to be honest. Just know these werent done by some hack job in his garage. These heads were designed by a VERY prestigious head porter. These ports are very efficient and it shows.

Chamber work was very important but not on the outsides. More of it was concentrated around the spark plug boss and surrounding area's. I'll throw a gasket on it tomorrow and see what you can get away with.
Old 05-17-2013, 01:51 AM
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How much for just the cnc, vj, and mill?
Old 05-17-2013, 07:36 AM
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Originally Posted by toby
How much for just the cnc, vj, and mill?
Just to CNC/VJ/Mill with assembly with your provided valve springs your looking at $1500

Last edited by Late Model Racecraft; 05-20-2013 at 12:25 PM.
Old 05-17-2013, 08:56 AM
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Hmm lots of tough choices.

This new program or proven cuts by AI for over $500 less or TEA for over $300 less...

These are just initial introductory prices right? Meaning the regular pricing later on would be more?
Old 05-18-2013, 04:01 PM
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Damn. Thats a lot for using the customers CORES!!! It even gets worse once the costs go to the normal price. I wouldn't want to be the ginny pig
Old 05-18-2013, 04:30 PM
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Actually I seen the heads Fri. and I'm here to say they look more like a stage 3 program.... a lot Larger than 260 cc's stock.
Old 05-19-2013, 11:58 AM
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LIL John,
You lucky dog. You have one of those "calibrated eyes" I always here about. LOL
Old 05-19-2013, 06:27 PM
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You damn right I have one eye so I see everything. Mr. Dos Equis is what they call me I've done it all, Mosquitoes don't bite me because of respect LOL!!!!!!! In the H keep it real. Had lots of fun yesteryear Eating , Dos, and the munchy's God is good..!!!!!!!!! Still having fun we had cookout yesterday now my brother is cooking a Gumbo and a ham is on the pit today holla back. I Really have one eye and I no stock port I have stock LS92 head besides having TSF heads that I decided to sit on, and the fact is let me see less than 265cc's and I Will learn something. Still ain't trippin..

Last edited by lil john; 05-19-2013 at 06:38 PM.
Old 05-20-2013, 09:57 AM
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Originally Posted by Jimbo1367
Damn. Thats a lot for using the customers CORES!!! It even gets worse once the costs go to the normal price. I wouldn't want to be the ginny pig
You get what you pay for in this industry. Our results will speak for themselves.

Originally Posted by lil john
Actually I seen the heads Fri. and I'm here to say they look more like a stage 3 program.... a lot Larger than 260 cc's stock.
One persons "Stage 3" vs someone elses "stage 3" will not compare. Stage's are just to keep it simple for customers. We dont offer Stage 1,2,3 heads. We have one program, that is it.
Old 05-20-2013, 10:27 AM
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Originally Posted by Late Model Racecraft
You get what you pay for in this industry. Our results will speak for themselves.
I understand what you are saying and these look bad *** no doubt, but when you have a stock casting from a few people (AI, TEA, PRC) that's ported and they all produce the same numbers within 5-8hp of each other, it's very hard to see spending more for some one else's program to maybe see 3 hp more over another.

For example, I know as far as quality casting this wouldn't be a good example but a set of Pro Comp LS3's keep up with the best of them as far as stock casting. I can get them cheaper than any GM casting on the market right now. For all purposes and content though we are going to stick with stock GM castings since that is what you all offering here. The flow #'s really don't mean much but to sell a product, but it is data.

Bottom line is that I paid a grand to have done to my heads that you want almost double for. You will have to show me a dyno test or a drag car test with back to back comparisons of other heads to yours. If its not at least a drastic 10-15hp across the rpm range what would put me over the top to purchase this port program?

I do commend you on bringing another product to market though. It is very tough in this economy to bring forth another product and to spend the r&d for it and trying to get your money back from it. People these days are holding tight to their money and so are manufacturers and producers because of the economic situation of our world.
Old 05-20-2013, 10:30 AM
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You get what you pay for in this industry. Our results will speak for themselves.
So based on this, you're predicting that these heads will put 50% more hp and tq at the wheels over say an AI or PRC ported LS3 head?
Old 05-20-2013, 10:55 AM
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Originally Posted by 87silverbullet
I understand what you are saying and these look bad *** no doubt, but when you have a stock casting from a few people (AI, TEA, PRC) that's ported and they all produce the same numbers within 5-8hp of each other, it's very hard to see spending more for some one else's program to maybe see 3 hp more over another.

For example, I know as far as quality casting this wouldn't be a good example but a set of Pro Comp LS3's keep up with the best of them as far as stock casting. I can get them cheaper than any GM casting on the market right now. For all purposes and content though we are going to stick with stock GM castings since that is what you all offering here. The flow #'s really don't mean much but to sell a product, but it is data.

Bottom line is that I paid a grand to have done to my heads that you want almost double for. You will have to show me a dyno test or a drag car test with back to back comparisons of other heads to yours. If its not at least a drastic 10-15hp across the rpm range what would put me over the top to purchase this port program?

I do commend you on bringing another product to market though. It is very tough in this economy to bring forth another product and to spend the r&d for it and trying to get your money back from it. People these days are holding tight to their money and so are manufacturers and producers because of the economic situation of our world.
Obviously the more we do the better the price will get, until then we have to charge what we have to charge.

Originally Posted by redtan
So based on this, you're predicting that these heads will put 50% more hp and tq at the wheels over say an AI or PRC ported LS3 head?
Never once did we say that. Don't try to put words in our mouth. What we said was the results will speak for themselves.
Old 05-20-2013, 11:45 AM
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Never once did we say that. Don't try to put words in our mouth. What we said was the results will speak for themselves.
That's why I used the word "predicting" and didn't say that you actually said it.

Yes the results will speak for themselves and you get what you pay for, but for this item to be worth the 50% price increase over other similar products it means that it will be putting out some 50% more power.

Not trying to be a dick here and start a whole argument, just trying to figure out what it is that you get for the extra money.

If for $1000 you get great results, great quality and customer service from "other" shops, what is it that you get more of from your shop for $1500? That is if you go by "you get what you pay for" statement.
Old 05-20-2013, 01:34 PM
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Originally Posted by redtan
So based on this, you're predicting that these heads will put 50% more hp and tq at the wheels over say an AI or PRC ported LS3 head?
By this same logic a Fast intake should double HP over a LS6 intake.

I hope the heads make power, time and synod will tell.
If these heads prove themselves, folks will pay for them.
Old 05-20-2013, 01:45 PM
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nice looking heads

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