cant decide between the patriot stg 3 ls6 heads, or the PRC 2.5, 5.3 heads.

Patriot stg 3 ls6:
Combustion Chamber: 64cc
Intake Runner: 227cc
Exhaust Runner: 70cc
Intake Valve: 2.08"
Exhaust Valve: 1.60"
Max. Valve Spring Lift: 0.650"
Spring Pressure Closed: 135 lbs. @ 1.800"
Spring Pressure Open: 375 lbs. @ 1.090"
Retainer Material: Titanium
Valve Seal Material: Viton
Valve Guide Material: Manganese Bronze
Valve Job: 5-angle

Flow 320cfm @ .600" intake
235cfm @ .600"exh
I would have them milled to 59cc....cost $1245.00 from Patriot

or the PRC stg 2.5 heads:
* Brand New GM 5.3l Based Cores
* Smaller Combustion Chambers For 10.75:1 Compression
* Stainless Steel 2.02"/1.575" Valves
* PRC Double Spring Kit Complete With
Springs, Titanium Retainers, Seats, & Seals

Flow 312cfm @ .600 intake
223cfm @.600 exhaust
$1309.99 from TSP

I am leaning towards the Patriot stage 3s. Bigger valves, higher flow numbers. I think its best bang for the buck.Lemme hear some opinions!!!

 

What's your budget? You may be better off just getting a set of 243's with a VJ that will outperform the TSP or Patriots.

 

for a budget cylinder head have you looked at the TEA heads hear nothing but good things about them over on tech. high end cylinder heads on the other hand id get a set of AFRs or TRICKFLOWS imo

 

I'd pay for the PRC's (out of my own pocket) and the shipping to wherever to do back to back drag strip testing and dyno testing against said set of 243's if you'll pay for the magical 243's with valve-job and the labor to swap the parts. You can pick the cam and spec it for the stockish 243's and leave it in there for the PRC's (I'm not even a little worried that the cam won't be right for the PRC's in this case).

Takers?

OP: Give us a shout sometime and we can get you setup! There's more to the heads than just valve-size and advertised flow numbers. The PRC line-ups offers quite a few advantages in both quality of parts and machining over the Patriots and we'd be glad to show anybody who's interested!

 

Post up Matt, patriot isnt a sponsor on this side of the fence and Id like to know. Ive got a set of your prc 2.5 5.3s sitting in the garage right now.

 

"outperform"??? theres no way a set of stock 243's with a valvejob will compare to either one of those heads listed.... I wonder where you get your info from...

 

i plan on going with the patriots one day, they did a huge difference on txsilverado's truck...

 

the patriots did great for me, but if i were to do it over, i would have spent just a little more for a better product.

 

there are definately better heads out there, but the OP was talking budget heads....

 

doesnt tsp have there own casting ls1 head now? I would say TSP or WCCH.