American Heritage Performance


We ship World Wide (with full insurance).  We have currently have shipped our cylinder heads to 13 different country's

Same as Our Package 4 but with our MoldStar90 Valves Guides in place of our PM valve guides. 

Total for Package 4 w/ MoldStar90 Valve Guides: $1,858 (plus return shipping W/Insurance).

Head Swap Gasket Kit:

We offer all the Gaskets, Bolts and other Parts so you can complete your head swap correctly.  $429 (plus shipping)

LS Series Cylinder Reworking and Cylinder Head Porting and Polishing.  We port both new and used GM and Aftermarket heads.  Stock or ported we can improve them all.  We also offer LS series Intake Manifold and LS series Throttle Body Porting.

LS7 Cylinder Head Rework Packages

Package 4 Heads with MoldStar90 Valve Guides (Includes):

Core LS7 Heads Available:

For those that dont want any down time, we have Core Sets of LS7 Heads on the shelf and ready to send out.  We send you the heads, you install them and then send back your old for your core refund.  We charge a fully refundable $1,000 core deposit for use of a core set of heads

Aftermarket Valve Springs:

We offer BTR Dual Valve Springs with Titanium Retainers for an additional $300

WE offer PSI 1511 ML Valve Springs with PSI Titanium Retainers for an addiitonal $550

Cylinder Head Services

Package 4 Cylinder Heads (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)
- Stock Titanium Intake Valves Treated and Polished
- 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: $1,358 (plus return shipping W/insurance).


25901 Belle Port Ave. Harbor City CA 90710 US