New H/C Package

Reply Subscribe

Thread Tools

Search this Thread

Jul 25, 2006 | 12:02 PM

Beasst8

Thread Starter

TECH Fanatic

iTrader: (1)

Joined: Nov 2005

Posts: 1,142

Likes: 0

From: Goldsboro, NC

New H/C Package

I will be ordering a H/C package from Texas Speed in a few days. I will be getting

MS4
PRC Stage 1 heads
Dual Spring kit with titanium seals, seats and retainers
ARP Crank Pulley Bolt
GM H/C gasket kit
Motive 4.10's
Ratech Install Kit

I think thats it.

I will be doing the H/C swap myself, and having the gears installed with my tuner. Is 400$ too much for a gear install and full dyno tune?

Is there anything else that I have forgotten to get that anyone can think of?? Thanks for any advice??

Jul 25, 2006 | 02:46 PM

MISERICORDIA

On The Tree

iTrader: (6)

Joined: Sep 2004

Posts: 132

Likes: 0

Did you do the math on what compression you'll end up with? Are these the LS6 heads? I'm not sure what the specs on the MS4 are but you may want more compression.

Jul 25, 2006 | 02:51 PM

SVT THIS

TECH Addict

iTrader: (27)

Joined: May 2005

Posts: 2,237

Likes: 1

From: Owasso, Ok

I think $400 is a good price for the gear install and tune. I agree with MISERICORDIA about the compression. You will be leaving some power on the table by not milling the heads and running a .040 gasket. Granted, if you do this you will need to flycut the pistons but it will be worth it in the long run. You will pick up some peak numbers and gain power everywhere in your RPMS. If you do not do it now, you will probably end up doing it later. Just my opinions, have fun!

Jul 25, 2006 | 03:02 PM

Beasst8

Thread Starter

TECH Fanatic

iTrader: (1)

Joined: Nov 2005

Posts: 1,142

Likes: 0

From: Goldsboro, NC

The specs on the MS4 are 239/242 .649"/.610", 111lsa.

I just talk to TSP and they said that they sink that valves a little deeper into the heads. Also something about using a spacer under the springs to raise everything so that there are no clearance issues. Dont quote me on the spring spacer, but I know that they sink the valves a little deeper. I am still learning this, so bare with me.

He said that the Compression is 10 3/4:1

Last edited by Beasst8; Jul 25, 2006 at 03:43 PM.

Jul 25, 2006 | 03:08 PM

JakeFusion

Super Hulk Smash

iTrader: (7)

Joined: Aug 2004

Posts: 11,258

Likes: 146

From: Pace, FL

Look at the PRC 200cc Terminator Heads, too. The 62cc chambers will give better compression without a loss in PtV clearance; flows similar to the AFR 205s; has a small, high velocity port; and is only a few hundred bucks over the LS6s. $1899 vs $1249 if optioned with the PRC Dual Springs.

Jul 25, 2006 | 03:47 PM

MISERICORDIA

On The Tree

iTrader: (6)

Joined: Sep 2004

Posts: 132

Likes: 0

Are these the LS6 style heads or the 5.3 heads? Then we can figure out how to get your DCR in range with milling or a thinner gasket or both.
Those Terminator heads are tempting.