Hey Guys, I was just wondering if anyone had any opinions on these heads?? If I were to buy these puppies for $1700 would that be a decent deal.

Are these heads of a good quality?? That is my main concern, also would the car still pass emissions?? Can I install these heads alone...no cam??
They would be going into a 2001 SS with a #5 ATI blower and corsa exhaust. Any input would greatly appreciated. Thanks , Angelo

*** NEW ***

CNC PORTED LS1 HIGH PERFORMANCE HEADS

*** NEW ***



These are the ULTIMATE custom LS1 cylinder heads. No expense was spared. Stock valves were replaced with HUGE 2.02” / 1.575” stainless steel high swirl valves. The heads were CNC ported and then hand polished. The stock springs and retainers were scraped for high performance springs and retainers. The face was milled to make 62.5 cc chambers (high compression). These heads are probably worth 40 hp gain!



Specs:



· NEW, LS1 heads (never run)

· CNC porting (CNC cylinder heads)

· Hand polishing (Pat Musi Performance)

· NEW 2.02” REV Intake (Racing Engine Valves) Stainless Steel, high swirl

· NEW 1.575” REV Exhaust (Racing Engine Valves) Stainless Steel, high swirl

· NEW 1.250” Chrome Silicone springs (SLP)

· NEW Chrome Moly retainers (SLP)

· New seals, keepers (GM)

· NEW Bronze Valve Guides (SLP)

· Performance, multi-angle valve job (Pat Musi Performance)

Milled surface (62.5 cc chambers)




These heads are brand new, perfect and ready to go! These are SERIOUS heads and will make excellent power, as no expense was spared. Unfortunately, my project was cancelled and the parts must go now. My loss, your gain.

 

I guess it will depend on how much the hand polishing adds. I bolted up a set of CNC heads on my '98 T/A with the stock cam, and I picked up 30 RWHP through an A4. Also, find out what springs the heads have. I know that CNC offers heads for stock lift cams and springs for added lift. I'm not going to say whether or not you should get them. Like I say, the power is going to depend on how much the heads were finished after being CNC'ed. I'll say that when the heads come off of the CNC machine they're pretty rough. They definitely need finishing.

 

I would get flow sheets and get them independantly flowed. Also SLP springs tell you nothing. You want 918 springs min.
Cheers,
Chris

 

Just a little FYI for those people interested:

The 62.5 cc chambers makes ~10.69:1 compression ratio on a stock car.

I figure the question would be asked so I went ahead and answered it. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Eric

 

I reread your post and I want to add something.

You can install the heads only without having to do a cam. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

However, if you are putting this on a forced induction car (turbo or super charger), you better check with the foreced induction crowd on here to make sure that high compression ratio is cool. I am going to guess that it isn't cool but I am not and don't claim to know anything about forced cars. So get their opinion on that compression ratio.

Eric

 

Actually , all of the items included with with this head are listed below, Any comments guys? <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

Specs:
<img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />


· NEW, LS1 heads (never run)

· CNC porting (CNC cylinder heads)

· Hand polishing (Pat Musi Performance)

· NEW 2.02” REV Intake (Racing Engine Valves) Stainless Steel, high swirl

· NEW 1.575” REV Exhaust (Racing Engine Valves) Stainless Steel, high swirl

· NEW 1.250” Chrome Silicone springs (SLP)

· NEW Chrome Moly retainers (SLP)

· New seals, keepers (GM)

· NEW Bronze Valve Guides (SLP)

· Performance, multi-angle valve job (Pat Musi Performance)

Milled surface (62.5 cc chambers)




These heads are brand new, perfect and ready to go! These are SERIOUS heads and will make excellent power, as no expense was spared. Unfortunately, my project was cancelled and the parts must go now. My loss, your gain.


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Thank you for the help!! I always ask before I jump,this board is great!! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

 

http://cgi.ebay.com/ebaymotors/ws/eB...ndexURL=0&rd=1

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by funeclown:
<strong>Actually , all of the items included with with this head are listed below, Any comments guys? <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yes, we saw the same list in your original post. That still doesn't tell you anything about the springs, as Chris pointed out. I also agree with wizkid on the flow sheets. He makes a great point about the milled heads with a s/c; you're looking to reduce your compression with a s/c, if anything, NOT increase it.