American Heritage LS7 Cylinder Heads (Pics and Data)
LS7 cylinder head rework package 4
We have lots of Corvette forum member running our reworked heads. We have heads customers running our reworked LS7 heads in 17 states and 5 country's. All happy/satisfied customers. We ship anywhere (any state or country). We stand behind all our work 100% Our most popular LS7 cylinder head package is our: Package 4 Head (includes): - Disassemble and Assembly of LS7 cylinder heads - Performance Valve Job (show to add 5hp+ over the stock valve job) - Resurface Heads (or milling of heads) - Clean and Bead Blast entire head (so they look brand new) - Hardened Aftermarket Powder Metal Valve Guides (Harder than aftermarket bronze guides) - Treated (tumble polished) stock Titanium intake valves (sent to DelWest for treatment) - Ferrea Competition Plus Exhaust Valves F2042P (85 grams) - New Viton Valve Seals and machined valve locks Total price for American Heritage Package 4 LS7 heads: $1,308 (plus return shipping via USPS Priority with insurance). We also offer BTR dual springs with titanium retainers for an additional $300, GMPP LS7 MLS head gasket set $100, GMPP LS7 MLS exhaust manifold gasket set $35, ARP LS7 head bolts $120 We also offer Porting and Polishing for an additional $550 (we port the old fashion way, by hand. We have been hand porting cylinder heads for over 15 years). All our port work is done using a super flow flow bench. Our ported LS7 head flow number rival some of the big name brand heads that are nearly twice the cost. See our flow sheet bellow. Finished Package 4 head with checked stock LS7 springs http://imagizer.imageshack.us/v2/800...538/iPmqo6.jpg Perfect RA finish on the Decks/sealing surface http://imagizer.imageshack.us/v2/800...540/B3sqrF.jpg Our aftermarket Hardened Powder Metal Valve Guides http://imagizer.imageshack.us/v2/800...540/hnu2IA.jpg Ferrea F2042P exhaust valve (a tested and proven exhaust valve) http://imagizer.imageshack.us/v2/800...538/2YTSvN.jpg Treated stock Titanium Intake Valve http://imagizer.imageshack.us/v2/800...913/CKXW9g.jpg Ported American Heritage LS7 head (Fresh performance valve job) http://imagizer.imageshack.us/v2/800...540/tkQBRI.jpg http://imagizer.imageshack.us/v2/800...538/pglmSI.jpg American Heritage Ported LS7 head (intake port) http://imagizer.imageshack.us/v2/800...746/JI0LWe.jpg American Heritage Ported LS7 head (exhaust port) http://imagizer.imageshack.us/v2/800...540/HgfDhb.jpg American Heritage LS7 head being flow tested on our Super Flow flow bench http://imagizer.imageshack.us/v2/800...661/pBqNnQ.jpg American Heritage Package 4 Ported LS7 head, intake flow sheet http://imagizer.imageshack.us/v2/800...674/44GPPN.jpg American Heritage Package 4 Ported LS7 head, exhaust flow sheet http://imagizer.imageshack.us/v2/800...913/kz0wal.jpg American Heritage Package 4 dyno graph, Stock C6z06 (stock cam, stock, springs, no mods). http://imagizer.imageshack.us/v2/800...743/YwylIa.jpg We have core sets available and ready to ship out (for those that don't want any down time) We also offer support as part of the sale (this means you DIY guys can call us with re assembly questions (we answer the phone even at night and on Sunday's). We can be reached at (questions, ordering, comments) http://www.americanheritageperformance.com/Contact.html 310-326-2399 Email, or PM us on here |
well put together. :thumbs:
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Awesome work Kohle!!
Have you received any results on your guide wear testing? |
I am a happy customer! I did the stage 4 kit a few weeks ago. Everything was just as advertised. Kept me update throughout the process. Even followed up after I received my heads and offered support If I had any issues during the R&R. Now thats customer service! Thanks Kohle! :thumbs:
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:thumbs: Gonna have to find some time to get in there for a "wiggle test" soon. My GMPP is through April 2016. :cheers:
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Stage 4 here with 2000 miles so far. Above and beyond customer service and great looking heads when complete. The power is great and I enjoy knowing my heads will be fine for a long time. Do yourself a favor and send them to Kohle asap. Had mine back in about a week with daily updates as they went along and install questions answered at 11pm at night. Picture is after 1500-2000 miles and looking great. Pricing was much better as well compared to some of the others.
Feel free to message me for any feedback or questions... Dave http://i1316.photobucket.com/albums/...ps28f49040.jpg |
Kohl, got a question...
I've got PRC 265s on my 101K mile Z06. At some point I'll end up pulling the whole engine to do a complete R&R. At that time I'll want to go thru my PRCs. Can you; 1) Remove the bronze and install your new PM guides? 2) Install Ferrea's hollow stem exaust valves? 3) Install PSI's 1115 Behive springs? 4) Touch-up the heads? (skim cut, valve job etc) |
Do you guys do shop work such as if I dropped my car off and had you do all the work from removing heads, doing the head work and re-installing?
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Originally Posted by Wndotintman
(Post 1587766490)
I am a happy customer! I did the stage 4 kit a few weeks ago. Everything was just as advertised. Kept me update throughout the process. Even followed up after I received my heads and offered support If I had any issues during the R&R. Now thats customer service! Thanks Kohle! :thumbs:
Thanks again Kohle |
Thanks for posting this...this helps out a lot!
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Originally Posted by AZDANZ06
(Post 1587771545)
Do you guys do shop work such as if I dropped my car off and had you do all the work from removing heads, doing the head work and re-installing?
We have also replaced LS7 heads under GMPP warranty (and several other aftermarket warranty company's). Yankee15, Dave and wndotintman thank you for your responses/reviews :thumbs: |
Originally Posted by Undy
(Post 1587768104)
Kohl, got a question...
I've got PRC 265s on my 101K mile Z06. At some point I'll end up pulling the whole engine to do a complete R&R. At that time I'll want to go thru my PRCs. Can you; 1) Remove the bronze and install your new PM guides? Yes 2) Install Ferrea's hollow stem exaust valves? Yes 3) Install PSI's 1115 Behive springs? Yes 4) Touch-up the heads? (skim cut, valve job etc) Yes |
Originally Posted by American Heritage
(Post 1587783729)
Yes sir we have a full shop facility for service/repair/modification work. We do several C6 Z06 cylinder head removal, rework and installs a month.
We have also replaced LS7 heads under GMPP warranty (and several other aftermarket warranty company's). Yankee15, Dave and wndotintman thank you for your responses/reviews :thumbs: |
Question about your PM guides, are they taller then stock? I read or saw in a video that a competitor that uses bronze valve guides are taller to help with valve stability. So details please.
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Originally Posted by BOTTLE FEDvette
(Post 1587786478)
Question about your PM guides, are they taller then stock? I read or saw in a video that a competitor that uses bronze valve guides are taller to help with valve stability. So details please.
Our aftermarket hardened PM guides also use oil spiraling to help retain oil in the guide at high/sustained RPM's. In our opinion though the guide does not need to be any longer for this application. Proper geometry, materials and finish is the key to success with the LS7 heads. As you can see from the dyno graph the valves are very stable at all rpm's. |
Just another "thumbs up" for Kohle and American Heritage. While I haven't done his head package yet, I did work with him on some other stuff for my 2007 z and he/his shop is top notch!!!!
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Originally Posted by vertC6
(Post 1587766445)
Awesome work Kohle!!
Have you received any results on your guide wear testing? |
Are your dyno numbers with the heads after a tune or not?
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I wish all head vendors were this forthcoming and transparent. I had a set worked by a prominent shop out west and they did not live up to the hype in quality or performance. I sold them before ever installing them.
Kudos to you guys for building this type of relationship with your customers and potential customer base. |
You can add me to the list of extremely satisfied customers of package #4. I'm halfway across the country from Kohle and the entire experience was flawless. I did the R&R myself, the second week I owned the car. Kohle was helpful and responsive throughout the process.
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