American Heritage Performance

American Heritage Performance LS & LT Engine Specialty Machine Shop
Worlds Fastest 427ci LS7 C6z06
F**k Around and Find Out

06/24/2026

I got an email today that completely changed my mood.

Not because the guy wanted to spend money.

Not because he wanted a discount.

Not because he was trying to impress me.

He simply treated me the same way I try to treat people whose expertise I respect.

He came prepared. He respected my time. He respected my experience. He asked good questions.

The funny thing is that this applies to every profession.

Mechanics. Doctors. Lawyers. Contractors. Engine builders.

If you want respect, start by giving it.

The Golden Rule still works.

06/11/2026

Buying an LS7? Check THIS Before You Hand Over Your Money

One of the most common questions I get is about the LS7 connecting rod issue.
If you're shopping for a C6 Z06 or any LS7-powered car, this is something you should understand before buying.
I explain the issue and share a simple tip you can use to evaluate a car you're looking at.
Have you ever owned an LS7? If so, what mileage did yours have when you bought it?

05/29/2026

Good to go or full rebuild?
This oil filter has less than 100 miles on it.
What are you doing next?
👇

05/27/2026

Catastrophic engine failure???
What's your guess as the cause of this noise? Comment below 👇

05/27/2026

Is the title "Master Tech" overrated?
Comment below what you think 🤔

05/09/2026

Valve guide issues? Not here. This is exactly how an LS7 is supposed to sound once the heads are actually fixed. No ticking, no drama—just a clean, quiet idle.

05/07/2026

FOR SALE: AHP Race-Spec 365ci L76 (SCCA GT2/ST Spec)

​Fresh off the dyno and ready for a new home. This is a zero-mile, ultra-high-revving race powerplant built in-house at American Heritage Performance. No lead times—this is crated and ready to ship worldwide.

​(Swipe to see the forged internals and hear it chop ➡️)

​The Numbers:

​Horsepower: 583 HP @ 7,400 RPM

​Torque: 468 TQ

​Redline: 8,000 RPM

​Compression: 11.5:1

​Note: Power is limited by SCCA GT2 class-spec cam; easily capable of more with a larger profile.

​The Build:

​Block: 365ci Aluminum L76

​Rotating Assembly: Fully Forged lightweight AHP Crank, Rods, and Ceramic Coated Pistons.

​Heads: AHP Stage 2 LS3 Cyl Heads with MS90 Valve Guides & Comp BSR Shaft Mount Rockers.

​Induction: AHP Ported Holley Hi-Ram, Holley Billet Rails, DW42 Injectors, & Nick Williams 103mm TB.

​Electronics/Oiling: 58x Crank Sensor / Wet Sump Oiling (Plug-and-play for most swaps).

​The Logistics:

​Condition: Brand New / Dyno Verified.

​Location: Harbor City, CA (90710).

​Shipping: Worldwide freight available.

​Price: $22,450

​This is a professional-grade, high-revving long block package. Whether you’re competing in SCCA or building the ultimate track/street weapon, this is the crate.

​Serious inquiries only. DM or email the shop to secure it.

Address

25901 Belle Porte Avenue
Harbor City, CA
90710

Opening Hours

Monday 8:30am - 5:30pm
Tuesday 8:30am - 5:30pm
Wednesday 8:30am - 5:30pm
Thursday 8:30am - 5:30pm
Friday 8:30am - 5:30pm

Telephone

+13103262399

Website

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