GMC SKI

Hey Guys I was trying to get some information on aftermarket heads
I know there is AFR and All Pro but is there anyone else ?
I was told Et performance makes a head and machines them ?
Who else is out there ?
ALso love to here any differences between them all good bad ugly

SouthFL.02.SS

AFR makes the only "aftermarket" head.
The rest of your choices would be ported GM Castings from Patriot, TEA, PRC, RGR, etc...

777

iTrader: (21)

And All-Pro

GMC SKI

There has been talk of some other players coming to the market
This goes with Block aswell I heard there might be an ls1 aftermarket block??

CTSmechanic

iTrader: (2)

All Pro (whats going on my motor) Edelbrock, AFR, Pro Topline bought out by Comp Cams (rumored) Dart (rumored) World products block?

Wet 1

iTrader: (4)

I heard TFS has a nice head coming out very soon as well... I believe TEA does their CNC work.

Don't forget about the new LS7 head that's coming out soon. From what I've heard none of the current design aftermarket heads will touch it.

I'm sure AFR LSx head sales will be dropping soon based on all these new players.

Gunnar@Patriot

iTrader: (20)

You can add 1 more to the coming soon list.

technical

You have peaked my interest sir.

Craig@ETPerformance

iTrader: (1)

Besides AFR and All Pro, we do have a aftermarket castings of our own. We offer the LS1, LS7 and C5R cylinder heads.

They are for sale now. Sets are shipping out next week.

gomer

iTrader: (13)

Any pics, flow numbers, or specs on these?

Craig@ETPerformance

iTrader: (1)

I do have some pictures of it on the machine but not the "Hollywood" pictures yet.

Which port size are you looking for? 215/225/240/265 cc in the LS1, LS7 260cc and a C5R 245 and 255 cc.

Some features are .750 + thick decks, raised valve cover rail, head bolt inserts, 11° valve angle, spring pads big enough for a 1.625" + spring and interlocking valve seats plus a few others.

Phil'sC5vette

iTrader: (4)

I can see this will be another painful thread

SPANKY LS1

iTrader: (24)

What do they flow, what size valves are available, what springs do they come with, what is pricing? Are the heads "as cast" like the All-Pros, or are they finished/ready to go? Will they require any additional components (rocker arms, pushrods, valve covers), or wil the OE stuff work? Mainly interested in the 215/225/240cc heads.

Shawn

gomer

iTrader: (13)

I'm right in the middle of a couple of 408 projects and any info you can give would be really nice. I'm mostly concerned with completely finished 225 and 240cc heads. Specs and PRICING.

Wet 1

iTrader: (4)

Oh yeah, one more... Brodix is working on one as well.


I'm looking for some good heads myself... Craig lets here what you've got asap!

Cary@Perf-Induction

iTrader: (1)

that will
One thing we have done when we designed our casting is made it very diverse. We have two different castings that will make up to thirty different versions to suit everyones needs, valve angles, high port (c5r style) cathederal port, street and race versions of both and not to mention the first aftermarket cylinder head for the ls7. all heads will offer chambers from 35 cc all the way to 76cc, any bore size any valve spring size and all come fully cnc ported. The castings are all poured at an aircraft foundry out of modified A356 alloy. The castings are gorgeous. Our race 265 cathederal port on a 4.00 bore will flow 376 at .700 lift with a 2.100 valve. That will supprt over 800 N/A horsepower. C5r and cathederal port manifolds soon to come. Spring pads are raised as well. We will supply a billet rocker pedestal for the guys using stock style rockers. Also clearanced for a 3/8 + pushrod out of the box.

Craig@ETPerformance

iTrader: (1)

All these heads are CNC'd, so they are ready to go with tons of options on valve springs, but the standard spring is good till .600 on the HYD Roller. As cast they are 160cc runners.


Here are some numbers for you guys:

215cc 11° Valve Angle
Intake Exhaust
.100" 74 57
.200" 152 106
.300" 219 150
.400" 266 190
.500" 301 204
.550" 312 208
.600" 320 211
.650" 323 214
*Flowed on 3.900" bore w/o pipe

225cc 11° Valve Angle
Intake Exhaust
.100" 71 57
.200" 153 114
.300" 208 163
.400" 265 204
.500" 308 222
.550" 320 228
.600" 328 231
.650" 332 234
.700" 320 236
*Flowed on 4.000" Bore w/o pipe

240cc 11° Valve Angle
Intake
.100" 73
.200" 152
.300" 210
.400" 266
.500" 312
.550" 327
.600" 338
.650" 346
*Flowed on 4.000" Bore w/o pipe

I will have new numbers for the exhaust on the 240 later today.

265cc 11° Valve Angle
Intake Exhaust
.100" 73 55
.200" 155 113
.300" 212 159
.400" 271 213
.500" 323 229
.550" 338 234
.600" 352 236
.650" 365 239
.700" 376 242
.750" 380 243
*Flowed on 4.000" bore w/o pipe


Thank you,
Craig

GuitsBoy

iTrader: (4)

Wow, there are a lot of options coming out. It would be nice for the consumer if all this competition would drive down prices, but I cant see how thats going to happen being that these are all new products and companies need to make back their R+D money. Why oh why does everything have to be so expensive for lsx motors?!?

Cary@Perf-Induction

iTrader: (1)

have you seen the price of a candy bar lately?? lol or how bout" gasoline?
just material costs alone has almost doubled in the last two years. the cost is actually pretty low for our heads. five years ago, you could buy brodix brand x cylinder heads for 1600.00 all your hardware for 600.00 and take them to your local good port shop and have the rest of the work needed for about 1800.00, wow 4000.00 plus. thats a lot of difference between now and then, the only difference is nobody makes any money.

technical

Price please.