Major problem with Patriot Performance heads
Originally Posted by PREDATOR-Z
Well let's pick this point up in let's say "2 years" from now!! LOL 
That is one more year to get the AFRs on the market, and another to find out how much it's a flop, like the LSX.
That is one more year to get the AFRs on the market, and another to find out how much it's a flop, like the LSX.
I have broke valve springs on 5 different occasions. Having said that, I can almost guarentee the valve is bent from hitting the piston. That head will have to come off. BTW I just put the Rev 1116s on the car and got about 120 miles. BAM broken spring, bent valve and have to pull the heads again. Gotta love it.
I got my Patriots way back last August and along with Whistler called to attention the rocker and spring clearance issues with the original dual springs. Here are some pics I took Labor Day weekend last year. I have not broke a spring yet, but did manage to snap a rocker bolt a few months back. Think I will be calling Terry soon.
Banned
Joined: Mar 2003
Posts: 603
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From: L.I. NY
Not for nothing, but Patriot seems to have gotten it's act together. If I was looking for an inexpensive set of heads I'd look at them. They may not flow as well as some more expensive heads, but they flow pretty good. Good set of heads if you want to go with a mild cam. Might want them if I slap that LS6 cam like I want to do to my other Z.
Thread Starter
Teching In
Joined: Dec 2001
Posts: 24
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From: NW Indiana
I don't think the valve is bent. It is still symetrical with the other valves and the valve spring is actually seperated in one place but still "intact". So the Valve is most likely not bent. I only have a mild lift cam (TR 224).
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Originally Posted by Mike98WS6
Good luck with ur car dude. Terry at Patriot is great to deal with.
TSP ended up pulling a set off a set of heads they had in stock and overnighted them to me
heritage,
You have some major valve float issues. With the retainers edge worn all away around the retainer is moving on top of the spring. It would be my guess the lifter have floated and harmonic set the springs. Because of this the seat pressure is week and the valve is bouncing on the seat during closing.
Chris
You have some major valve float issues. With the retainers edge worn all away around the retainer is moving on top of the spring. It would be my guess the lifter have floated and harmonic set the springs. Because of this the seat pressure is week and the valve is bouncing on the seat during closing.
Chris
