Jason 98 TA

As most of you guys know we've been working really hard recently to rework all of our cylinder heads to improve power, performance, and value! The LS6 head is the newest cylinder head to go through these revisions. All future LS6 heads will ship with all the new features at NO EXTRA COST!!!


We just finished up the newest revision of the PRC LS6 cylinder head! The new cylinder head features a new smaller intake runner (225cc), new bigger cfm exhaust port, & aftermarket rocker arm clearances!!



The new intake port was reshaped to provide the same great airflow you've come to expect from PRC with a smaller runner for increased velocity & throttle response!

Here's a few pics of the new ls6 intake port. The port in this pic goes 310cfm @ .650 lift!!




The Exhaust Port was also completely revised from top to bottom! The all new exhaust port flows as much as 10cfm more air than the previous port with the same valve size!


NOTICE IN THIS PIC THE ALL NEW AFTERMARKET ROCKER CLEARANCES & CUSTOM PRC ENGRAVING!!


Improved airflow, improved features, smaller runners all available at the current special price of $949.99 with stock springs!!!!

FloydSummerOf68

Do you have flow numbers for across the board?

What lift can stock springs handle and what is the cost to upgrade?

huskeric

Jason,
Do you have experience (sure you do) on installing Comp Cams 1500 pedestal mount roller rockers on these heads? Particularly, I am interested in how hard they are to adjust, if enlarging the pushrod holes are necessary, and results. While I know the stock rockers are great, I like this setup.

thanks
r

The Clevite Kid

Good deal on these heads ! ! What is the extra charge for milling (on the order of 0.030" or so) to increase the compression ratio for use on an LS2 block - stock 6.0L bore and stroke - stock LS2 pistons?

Corvette Don

They flow about the same as their 2.5 5.3l heads by +/- 3 cfm, they do flow better at .650 lift than the 5.3's. The stock springs can only take .550 lift

They mill them for free.

Joe_G

These are interesting...as it's getting to be time for my next round of mods...

What is the price for these? Not sure what "stage" these are on your website.

How do they compare, flow wise, to L92 heads?

Do you have dyno sheets for any of these or flow sheets (would love to see a comparable flow sheet to stock L92 heads).

Corvette Don

These are the stg 1.0's

Joe_G

Still interested...any word on these items??