I just finished reading the latest Chey High Performance (May '07) and took interest in the Patriot Performance head write-up on p#74. Patriot is now offering a Freedom Series sbc head, and for the listed price $795.00/pair, they seem to be a good deal. Has anyone delt with Patriot before? Anyone use their products. From what I understand they made their 'mark' producing LS heads and are relatively new to making the 'old' gen I and II style heads. That said, they seem to have a good reputation with the LS style heads. Your please. -Andrew

mmmm...Ive heard some good things. I wnat to see some more on these. got a link?

They have a web site patriot-performance.com however, there is no info provided about these heads (or atleast I couldn't find any ). I e-mailed them to see what the deal was.....The heads might be new, and perhaps, the website hasn't been updated yet
I would like to know stuff like: manifold bolt pattern availability (vortec or just traditional sbc), accessory bracket mountings, center and or perimeter style valve cover bolt pattern.... etc..
-Andrew

I actually just bought these heads bare from a company that got some directly from pariot and they got here in like a day. They look good im doing some minor porting and polishing just to clean them up. they are suppose to flow 263 cfm @.600 lift im going to get them flow benched after i get done with them just see for my self. i will let everyone know how it runs with them on it. Later Daniel

Can you answer any of my Q about them (see original post...)
-Andrew

well i dont know how thet are yet seeing how i havent put them on but like i said they are a nice piece for the money i can only hope they will work as good as they look. my dad owns a machine shop and i took them there and he looked them over and we lapped the valves and i have alot to work with. he was alos impressed with them. Later Daniel

Dan
can you tell me what intake bolt pattern your heads are drilled for, how about the valve covers - perimeter or center bolt or both? and also accessory brackets - are the heads drilled to accept them.
Thanks
Andrew

they are for both normal and vortec and both on valve cover, and also for all accesories. it tells you that if you read about it and just look at the pic in any magazine. i noticed all that before i even got the heads. If you do enough research you could have answered your own questions i dont mean to sound like a **** but it common sense to me.

If you still have the Stealth Ram (in the profile), what
is the configuration of the 2 center bolts? I've seen
the pics, and the non-vortec bolt pattern appears to
be all the same angle. If you have to solve this problem,
with the new heads, I'd appreciate sharing the experience
with us.

i contacted patriot about info and they said they would mail me out some info it will be scanned and posted as soon as i get it.

the stealth ram intake is set up for both 86' and prior and 87' and newer the only difference is that the 2 center intake bolts are sitting at a different angle. all holley does is elongate the holes. some people have had intake leaks because they dont tighten them down right or something. mine doesnt so i couldnt tell ya. i cant wait to get those heads on so i can spread the word about them i should be somewhere in the 12's or if my porting work is done right hopefully high 11's i guess we will see. if you have any other question feel free to ask. If you still dont get about how the bolts are let me know i will take some pics and post them Later Daniel

Nope. Elongated holes was the the answer.

These heads seem like a good head for the money. We went down to their plant in Alabama. They showed us that some stainless steel valves are not too good of stainless steel, but the ones they use are a good grade stainless. You get an assembled set of heads, non ported or polished for 795.00/pair. We got them right before Christmas with $20 shipping, they weigh 50lbs. I thought that was a good price for shipping.

We did a little gasket port matching on the heads and intake. We haven't run them yet, but they seem like they'll be a good head. Great service too!


They haven't updated their website with the new heads, but they are exactly the same as the $1295.00 except they are not ported and polished.

Part#:
2180(angle plug)
2181(straight plug)

Made from Alum. 356-A

23 degree valve angle.

The are 195cc heads would be 188cc-non ported, so i guess the 215cc would be around 208cc and the 225cc would be around 218cc.

The Combustion Chamber is 64cc

Intake 2.02+.100 and Exhaust 1.60+.100

5 angle valve job

You can get single(Max lift .575") or dual spring(Max lift .650" for a little more $)

Viton Valve seals

Pushrod guide plate included

Manganese Bronze Valve guide

Works with both Perimeter and Center Bolt Valve covers.

Nice great information! thanks for the info. let us know how they run.

anyone have any flow numbers on these heads?

i read the same articel and i was impressed with the info and price, im leaning towards these for my HSR 383. so their 188cc non ported, and 195 ported, im hoping the 188cc is enough for my 383 HSR.

Thank you,
Gunnar Bowlin
Patriot Performance
888-462-8276
www.Patriot-Performance.com"

i think these are what on my motor there not bad

thanks for the info.

these are what i'm buying its a better deal than high lift vortec heads and you don't "have to" change the intake style

Alabama cylinder heads (manufacturer of patriot heads) is one of the largest and most respected aftermarket cylinder head companies out there. I have bought some heads (no patriots yet) from them and they were top notch. Shipping was fair along with the price (their prices flucuate with the price of metal so you can get a hell of a deal) Im going to be installing the $1295 heads on the 383 Im about to drop into my 82 Z28.

Just recieved the new issue of car craft and they have a whole multipage review of the patriot heads. I just skimmed over it but they seem to like them.

I have a friend that bought a set and put them on a 355ci motor in his Malibu car runs 12.50s on motor with a 3.20 gear and all steel body with the spray car goes 11.30s (150hp shot.) I was impressed and the heads are streight out of the box no clean up work.

Here is the flow bench numbers from Car Craft for Patriot Freedom 188
2.02/1.6 valve 66cc chamber 188cc intake port

lift ------intake------- exhaust with pipe
.100 -----62--------------- 50

.200 ----123 ---------------81

.300 ......169 .....................125

.400 .......209 ................... 154

.500 ........229.................... 175

.600....... 263..................... 186

Personally I think the price is outstanding for these heads. I don't really care for the low and mid-lift numbers. I read the CarCraft article. The Vortec heads spanked the Freedom heads up to about 5000 rpm. From there the Patriot heads took over slightly.

yeah the mid and low rpm numbers ain't great but when price compared to a new vortec tpi base you could get them pocket ported and catch up quick

hard to beat for the money. wonder what XFI Comp Cam one would get with this combo??

Quite a jump in CFM from .500 lift to .600" lift. Looks to me like the XFI cams would work well with those heads. I would be interested in independent flow numbers.

anyone know if they'll work with edelbrock tes headers?

these heads have a 1206 gasket sized intake port. thats very big for a 188-200 cc head.

Its unfortunate too because i have a stealth ram and wanted these heads but my stealth ram is the early model that cant be opened to 1206 ports without adding material to the base

how do they take the 1206 gasket when i have the patriot 195cc heads and they take the 1205??? and i have the new HSR

like we discussed before, that was information i took straight from Skip Whites ebay add for the patriots.. he said it has a 1206 gasket port

i have those heads from White performance as well and am happy with them. The 1206 gasket is what comes in the head install kit along with 1003 head gaskets. also note you should plug the intake manifold hoes you aren't using as oil can blow through them when wot and also plug the screw threads on the sides of the head as oil can make its way through the perimeter valve cover bolt holes.UI fiound this out the hard way with a mess of oil that at first i couldn't find then called patriot and they told me what to do.

thanks for the tip, I'm getting ready to buy a set of these, I was going to purchase from skip white, but if I can get them for $20 shipping that saves me 30 over the 50 dollar shipping price of whites, does anyone have a link for the heads at 20 shipping?

which screw threads have to be plugged on the head? u talking about the accessory bolt holes for AC alt etc?

anyone have any real results on these heads yet??

You can use either center bolt or perimeter valve covers on these heads. If you use center bolt valve covers, you should seal up the perimeter valve cover holes to prevent valve cover leaks.

I haven't installed mine yet so am not sure as to which intake holes require sealing as well.

here is actual flow #'s of there heads with there equipment in them
head specs--freedom series-SBC 225cc hand blended
2.08 intake 1.60 ext 64 cc chambers
I had the heads flowed at hi-tech motor sports in Elk River, MN--one f the best shops in the state look them up

flow data
model-Patriot Cyl tested-#3 date-4-9-11

Test press-28 bore size--4.00 inch Entry Guide- clay

Exit Guide 1 3/4 pipe int valve 2.08 ext valve 1.6
flow #'s corrected Yes Seat angle (i/e) 45 / 45

lift intake exhaust E/I %

0.10 72 55 76

0.20 142 99 70

0.30 208 142 68

0.40 245 175 71

0.50 267 202 76

0.60 378 222 80

0.70 286 231 81


they stated that these heads should be used on a 4.125 bore or larger---

also the flow of the heads is not all that great --the air flow is not smooth through the intake port----flows hard and hits the back then a hard turn


I did some hand porting on a set of 1968 185 heads(on 210 hp 327 motors)
These where some times called single hump camel backs, but are not a camel back head--they are a heavy casting


they where opened up to a valve size of 1.94 intake and 1.6 exhaust and got from 0.30 lift 197 flow to 222 flow at 0.50 and these where also flowed at hi tech the same way as the patriot heads I also achieved 75 % to 82% E/I across the board- not bad for a 1st time port job --there was more material to safely remove if one wanted, but I sold the heads

merry christmass

I made it to the 4th line in your review.

Hi-Wreck SUCKS!

Which I already knew anyway, but just for grins, I looked them up, as you suggested:

http://www.thirdgen.org/techboard/po...0-post147.html

Good luck with those heads, I haven't heard bad things about Patriot in a LONG time. But I would not let Hi-Tech change my spark plug wires, let alone build my engine or tune it.


TPIS is one of the premiere names when it comes to SBC's, take your engine there. Either that or DRM, they have lots of happy customers, but I'm not sure if they work with the SBC too much anymore... http://dougrippie.com/

I will not get in a fight about shops with you--so one guy has good luck there another dose not--I am sure that both shops are great and have had good things and bad things said about them--post a pic of your car--just wondering if I have seen it there and the engine-bay

I have had good dealings with them--Bart has been good to me and my wife sorry you did not have such a good experience.........

I am not going to use the heads--I can port my old 461 camel backs and do better up to 0.55 smother flow and better velocity

Nah, my car has never, and will never be in that shop. There's just too many horror stories.

But your right, this thread is about patriot heads...