Does anyone run Patriot heads? Please only reply if you have first hand knowlege or are an experienced engine builder. Pros and Cons. Thanks

 

no one????

 

http://www.yellowbullet.com/forum/sh...ad.php?t=49944

enough said...

 

Nuff said..I'll pass Thanks

 

WTF glad i read this post

 

Very few will take the risk to post anything positive about the Patriot cylinder heads here on CF. The cast core is produced in China and some members of this forum dislike anyone to buy such products.

best regards
Arne

 

Look at the pictures here and I think you will realize why. Those are junk. No other way to describe them. JUNK!
http://www.yellowbullet.com/forum/sh...ad.php?t=49944
And if your thinking about Pro Comp read this. A stock, used vortec makes 30 more HP with a 40 CC smaller intake port than the CNC 210 Procomp. Wonder what kind of power the as cast 180 makes?
A set of AFR 195's dyno 102 HP higher than a Procomp 210 CNC head with a 15 CC smaller port. We buy an aftermarket head to make power don't we? A Brodix IK180 as cast makes 65 HP more than a Pro Comp 210 CNC. Does that tell you anything about quality? That 65 HP will cost you a total of $400 on the same build with much better streetability and bottom end. Cheapest power you will buy.
http://www.boatstoreonline.com/procomp.html

 

Do you have first hand knowlege or are an experienced engine builder 63mako?

He is asking for Patriot cylinder heads not Procomps or all the other brands you happen know of. Yes, we have all seen those horror threads you refere to. Repeating this over and over again does not necessary make them more true.

Please attend to what Rayluca asks for.

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Ray, take contact with Gunnar at PATRIOT PERFORMANCE and ask which cylinder heads will be the best fit for your demand. You'll probably hear a different story...

gunnar@patriot-performance.com

good luck with your inquiry Ray!

best regards
Arne

 

oh oh this will turn into another can of worms....do i have dejavu again.

 

The poster was asking for the PROS and CONS.. that may warant comparison to other products that relate to the patriot heads.
In other words, It's like Plato - The allegory of the cave...
How can one justify promotion or demotion of a product of there is no comparison to relative products?
I think bringing other head options into the coversation was relevant as can be.

BTW I have chineese made intake.. and I like it...

 

Arneoe has a pair of these heads and is trying to convince others on another thread that there great....but no ones buying it...
Take a look...

http://forums.corvetteforum.com/c3-t...0-68-64cc.html

Arneoe, do you work for Pro-comp? I'm beginning to wonder...

 

Yes. I raced for 15 years, have been building street cars, race cars and engines for 35 years. I have 3 years of college auto mechanics, 3 years at a machine shop specializing in high performance engines. Have been helping build Truck pull big blocks for about 5 years and also work with a sprint car crew. I do have considerable knowledge on this subject and would consider myself experienced and knowledgable engine and car builder. Also talk engines a lot with some of the top area builders at the events, at the truck pull engine shop as well as assemble and dyno them. Know what works and what don't.

Also know what the sprint car guys run. No serious contenders use Pro Comp or Patriot and a lot of these guys are on a really tight budget building these cars out of pocket with no sponsership. One of my friends trashed an $8000 engine when his pro comp shaft rockers self destructed on his drag car. On the thread you started there were 2 people that used Pro Comp heads that both experienced catastrophic failure destroying their engine in less than 2 thousand miles. One was due to poor quality valves and parts, the other due to an improperly machined water port. That tells me the machining is questionable and the parts are questionable.

Like I pointed out Stock used vortec's with a 170 CC intake port outperform a new Pro comp 210 CNC head by 30 HP in a back to back dyno test. Use your heads, I am sure you will be very happy with them.

But you obviously have very little experience and also have no first hand knowledge of the patriot heads. Did you even look at the pictures on the Yellowbullet thread before recommending these? The castings and machine work are horrible. I would not even consider using or recommending a product made by any company that would let something like this leave the plant with their name on it but that is just me and my opinion which you feel is irrelevant anyway.

 

You again? You never give up do you? On this thread we are talking about Patriots not Procomps. I think you would not tell the difference even if they fell on you.
A.

 

Gosh.... you got me sold 63mako.... ...

 

the real question here is... do you give up??
Dude.... READ!!! you have real experts telling you real world truths and pointing out everything to you... again... you work for these Chines head guys or what??

 

Look at the photos in the yellowbullet thread before you recommend these patriot heads which you have never seen. "They are made in china like my procomps so they must be good." I also think bringing Procomp into this discussion is relevant because it is my understanding Pro Comp, Patriot and RHS use the same castings in all three heads so you are right, it would be very difficult to tell the difference even if they fell on you. RHS does their machine work in the US and uses superior parts so they are a little higher. Close to the cost of a Brodix IK 180 which in my opinion, that don't matter, is a great 350 head for a very good price, that flow well and use top quality parts.

 

To get back to the original question, and I am not a professional engine builder, but I do have first hand experience with Patriot's Freedom series small block Chev Heads. I bought a pair for my'75 when I was rebuilding the engine. I'm not into knocking someones products, I'll just state the facts.

First Issue, standard rocker covers would not fit, they fouled on the (standard) rockers (top side). Patriot advice (via reseller) was to fit 100 thou longer pushrods. Did this but didn't solve the problem. Ended up using the extra wide fabricated rocker covers, that might be required for roller rockers, to overcome the problem.

Second Issue, most plugs were oiling up. Believe the problem to be that the rocker posts threads are drilled and tapped into the inlet port. The rocker post threads didn't have sealant applied, so oil was pulled down the threads by the vacuum. A fixable problem, but shouldn't have to.

Third Issue, if you place a square over the centre of the rocker posts, some line up with the centre of the valve, some don't.

Fourth Issue, on a couple of cylinders, and I forget which ones now, if you line up the rocker with the centre of the valve, the pushrod is on an angle because it fouls on the head casting.

Fifth Issue, there was no rocker to rocker post clearance, top side, with the valve closed. Remember, we're just talking standard 1.5 pressed rockers here. In my estimation, and I came to this conclusion by making a home made variable length pushrod, 200 thou longer pushrods would be required to give the necessary clearance.

As I stated earlier, I'm not knocking the product here, just stating the facts regarding my experience with this product.

 

mm. cant wait for MR white to join in the convo. this thread will blow out to 20 pages long in no time. lots of mumbo jumbo....

can i just sumarize to save time.... patriot heads are s h i t

 

Lets hope the Chinese are using them on thier military trucks! That way, I can dust 'em with my duce and a half!!!

 

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