does anyone run or know anyone who runs patriot freedom series heads? they seem to have all the right numbers, but i'd never heard of them until a couple of days ago. these would be going on my stealth rammed 89 tuned port with a hydrulic flat tappet cam in the .500 lift range. are these a good deal or caca?

http://stores.ebay.com/whiteperformance1

I was looking at them too, when you google Patriot Performance you will get a bunch of hits on CNC'ed LS1 heads. I guess they are pretty well known. But that is not really saying much, Edelbrock is well known but thier heads are not known to be very good.

FWIW, I have installed Patriot Performance heads on my '99 Camaro SS. I had replaced my Mike MorganSports heads which had given me 400.3 RWHp (along with many other parts). I have not had the PP heads dynoed yet, but they seem as strong or stronger than the MMS heads. Now, of course, you have not heard of MMS either, so I am not being much help. But, I think that the PP heads are great heads and seem to be well made.

Thats what i'm running, but be weary of Skip White Performance. I bought a whole head/rocker arm setup from them, and today when I was breaking in the cam the thing started missing and backfiring like crazy. Well to make a long story short they sent me the wrong rocker arm studs that are too short. After pulling my valve covers off I found a bent pushrod, three rouge rocker arms, and three lifters out of their bores. The heads look beautiful but like I said, Skip White Performance sucks.

ohh mannnnn dont say that.
i purchased patriot performance 195cc aluminum heads in june assemebled and i bought them from skip white performance! they told me with stock roller lifters and 1.6rr i would need .100 longer pushrods. so i bought everything and im almost ready to put together my HSR 383 with Comp cams XFI cam! im alil worried now. anyway i could tell i got all the right stuff?

the heads to do look beautiful tho, really nice peices and they flow as good as the really $$ brands if not better

hope you've got a vortec base for that hsr, that or plan on adding matierial to the one you've got. feel my pain:https://www.thirdgen.org/forums/alternative-port-efi-intakes/418191-hsr-patriot-heads.html

I've just got a TBI to carb adapter so i can run my throttle body on top af a carbeurated intake manifold.

I thought you died. Where have you been?

-- Joe

i got side-tracked with my lowrider project so i haven't been on here in forever. the black car is just sitting at my work dieing for some attention.

I hear ya. I've been spending most of my time working on the truck.

I have a roller shortblock for sale too if you know anyone local that could use it. Would make a good 355 roller racer.

-- Joe

doesnt the newer HSR's accomodate revised castings...? the patriot performance 195cc are 12 point chevy intake pattern i believe and the HSR is as well... and the revised castings i believe have the bolt holes drilled for different angles as well... or was that vortech question not intended towards me?

it will bolt up fine, as the patriot heads are drilled for both patterns. but they require a 1206 gasket that the hsr won't seal. so you either need to add matierial to your stealth ram or go the vortec route. check that other thread i posted a few posts back.(which doesn't seem to be working) so just search HSR with patriot heads in this forum

how is that truck coming almost done?

thats bullshit! i thought i woulda been ok bc ive heard of ppl having to do that but i thought the patriots where ok and didnt need it. what runners and what sides is the metal added too and how much does it usually cost to get it done?

you sound confused...the patriot heads require 1206 intake gasket.
the hsr requires material to be added to the base(on the top of the intake port), then it needs to be ported to match the 1206. i too have heard of the newer stealth ram castings accepting the 1206 gasket, but other than holding a gasket up to it and checking, i don't know how you can tell. call holley tech maybe, and get a price on a vortec base while your at it.

oh i wasnt confused. i heard about the adding of material to the intake with the older versons but i htougth they fixed it with the revised castings. i'll just get the gasket and see how it mounts up. the vortech base is roughly 60$ more but that doesnt help me cuz i already have the chevy base one. i'll also call holley and see what they say. thanks

Im looking at these for my buildup
70's 350 4 bolt main
Patriot heads
BigMouth or Super Ram TPI base


Is this going to be a issue for me as well?

Good question. Probably not though. Holley is the only intake I've heard of problems with the 1206 gasket, and like folks mentioned it was the older casting.

-- Joe

but what's the cutoff for the old versus new casting part#? my hsr was bought 2 years ago and it was the old casting. not to mention these things most likely sit in warehouses for years anyways.

yea thats what im wondering as well, i bought mine 2 months ago and i kno its the newer casting bc it has the enlongated bolt holes in the center for the diff style heads. u would think that they would have fixed the probs wit these intakes since it affects aftermarket heads and the intake is an aftermarket non emisions intake.

I just completed a build for a friend of mine using the Partiot Freedom heads.
The initial quality on the heads looked good when I pulled them out of the box but.........When I went to install the intake, one of the heads ports were shifted almost .125". Upon closer inspection, one head had as cast intake port openings while the other head was matched by hand. On the head that was hand matched, the gasked aligned perfectly. The other head did not.
Also, I used standard length pushrods. Somewhere in this post it was mentioned that the push rods needed to be .100" longer. Mine was not the case in fact they could have been slightly shorter.

I think I would have been on the phone asking for another set REAL fast

Was the engine deck surface shaved at all? I zero decked mine and had to mill the intake for the ports to match up.

https://www.thirdgen.org/forums/tech...ro-magnum.html Very helpful thread for the stud issue, four calls later Skip White Performance was still NO HELP!

You sure that was the problem? I'm assuming by "zero deck" you mean you brought the deck down to 9.000", which shouldn't have thrown the intake alignment off.

-- Joe

The problem I had was that the ports were shifted left and right(Vertical). Not up and down (Horizontal).