Patriot Heads
Thread Starter
Burning Brakes
Joined: Jan 2004
Posts: 851
Likes: 103
From: St Louis, MO
Patriot Heads
I'm looking for 425 to 450 rwhp.
My car is a 98 6 speed and has the following:
Twinflow intake
Powerduct and coupler
LS6 intake
LG headers
Borla exhaust
I'm looking to add a set of heads and cam.
Will the following get me there and/or what would you recommend?
TSP Custom 228R Cam: 228/228, .588"/.588", 112 LSA
Patriot Performance Stage II Cylinder Heads: 5.7L Perimeter-Bolt Heads (1997-98 LS1) - NEW LOWER PRICE! $999.00
Thanks for any help.
My car is a 98 6 speed and has the following:
Twinflow intake
Powerduct and coupler
LS6 intake
LG headers
Borla exhaust
I'm looking to add a set of heads and cam.
Will the following get me there and/or what would you recommend?
TSP Custom 228R Cam: 228/228, .588"/.588", 112 LSA
Patriot Performance Stage II Cylinder Heads: 5.7L Perimeter-Bolt Heads (1997-98 LS1) - NEW LOWER PRICE! $999.00
Thanks for any help.
Le Mans Master
Joined: Jul 2002
Posts: 7,370
Likes: 8
From: Slave to the evil empire
Cruise-In V Veteran
St. Jude Donor '04
Patriot Performance Stage II Cylinder Heads: 5.7L Perimeter-Bolt Heads (1997-98 LS1) - NEW LOWER PRICE! $999.00
Thanks for any help.
Thanks for any help.
Melting Slicks
Joined: Mar 2001
Posts: 2,979
Likes: 281
From: Tulsa OK
I don't know how much difference there is between the 5.3 Race heads and the 5.7 stage II heads, but I have Patriot heads and a lesser cam plus and underdrive pulley and I'm making 437 rwhp. I think you'll get there with your setup.....but you'll need to add dyno tuning to that list. 
Advanced
Joined: Mar 2004
Posts: 77
Likes: 0
From: staten island ny
the 5.3 head will raise compression the 5.7 head will not.also the race head is hand finished and has larger valves.you can expect about 400 hp with the 5.7 heads.you can use a thinner cometic gasket and raise comp. slightly and tighten up the quench area to make more power but watch piston to valve.
Safety Car
Joined: Aug 2000
Posts: 4,537
Likes: 84
From: St. Joseph MO
Cruise-In III Veteran
Cruise-In IV Veteran
I've got the 6.0 liter heads and a 224/.581/112 cam. With over 8.5k miles on the car I'm making 412hp/390tq. Oh and this is with a 12.2 a/f and 28* of timing. Not bad at all for a package that cost about me about $3k with all the little stuff as well. My car runs damn good and I'm happy with the results, just waiting for some giggle gas and a race port job from TSP.
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