GMPP LSX LS7 heads?

Reply Subscribe

Thread Tools

Search this Thread

Dec 26, 2013 | 08:47 AM

6togo

Thread Starter

TECH Resident

iTrader: (13)

Joined: Feb 2012

Posts: 821

Likes: 0

From: Harford co. MD

GMPP LSX LS7 heads?

Anyone running these heads on a boosted motor i have a set of as-cast and was planning on having them CNC'd, change the exh. valves and springs but when all said and done that puts them up in the 3K range would i be better with another head already done like the PRC's? They are going on a twin 427 that will make around 1000whp give or take not real high boost maybe 18psi max.

Dec 26, 2013 | 09:30 AM

Bill00Formula

TECH Fanatic

iTrader: (4)

Joined: Nov 2001

Posts: 1,066

Likes: 11

From: West Palm Beach, Fl

I thought about using these heads. Just wondered who will cnc your heads. Thanks

Dec 26, 2013 | 10:24 AM

Unreal

TECH Apprentice

Joined: Jan 2002

Posts: 366

Likes: 0

From: Gilbert, AZ

I would just do the PRC heads. For $3k you can get them built with Ti valves ready to go.

Dec 26, 2013 | 03:53 PM

6togo

Thread Starter

TECH Resident

iTrader: (13)

Joined: Feb 2012

Posts: 821

Likes: 0

From: Harford co. MD

I was originally going to do the PRC's but could not find any info. on them and the heads i have already have TI intake valves. i think the TI valve upgrade on the PRC's puts them in the $3200 range plus shipping. I dont think they will flow any better then the GM's once ported.
Many of the big name porter's have the program for the heads i was probably going to let Richard at WCCH do them.