XtreemeChaos

I haven't been keeping up with new mods for the last year or two, but this is what I was planning to build for the past couple of years, but wanted to get some opinions in case anything newer/better has been found. Current mods are in sig. I have a set of Patriot LS6 243 heads with stock valve size and stock combustion chambers ready to go on. My planned additions are:

MS3 cam
LS2 timing chain
.040" head gaskets
TSP ported LS6 oil pump
New fuel injectors

My 5-7 year old coated Pacesetter headers are also starting to look a bit rough, so will probably replace those. I was also thinking about getting the heads milled to increase compression. Any thoughts/ideas?

LCW

iTrader: (6)

Personally i would have someone spec a custom grind for your setup.. It may be a little more costly but i believe you would benefit overall. Also if you mill the heads you might want to go with a cam that has less lift unless you want to fly cut valve reliefs, or maybe a thicker head gasket. Definitely go with like 36# or 38# and at your stock fuel pressure that will put them around 41-42#.

itsslow98

iTrader: (18)

+1 on the custom cam and ive never heard anything good about patriot except for there valve springs. Id ditch them and go with some from texas speed if your on a budget.

garygnu

can you sand blast the headers and recoat them?do you have any E.T.?I second the thicker gasket and custom cam

XtreemeChaos

Patriot heads have already been purchased (about a year and a half ago), so they'll probably need to stick around. I'm okay with flycutting, probably going to pull the engine to do the work. Some things I just realized I didn't add to my sig is I have the Racetronix fuel pump setup and a stage 2 ACE 4L60E.

garygnu

with a custom cam you will not need to fly cut the piston. you can tailor you lift around correct valve events.

LilJayV10

iTrader: (39)

That will depend on the cam that is spec'd. The only way you "wouldn't" have to fly cut is to tell the cam guy you don't want to.