SKU: 77920465082

Stage 1 | LS Forged Circuit Engine | Build Your Own

Sale price$6097.50 Regular price$6775.00
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

Stage 1 | LS Forged Circuit Engine | Build Your OwnBuild Your Own Forged LS Engine Upgrade Our LSX Performance Parts Custom BUILD YOUR OWN into one of our Forged Engines built with a purpose To produce the highest performing engine package to suit circuit applications. We take your existing standard LS engine and completely take it down to a bare block which is CNC machined and built with the highest quality ALL American forged internals. This engine is built and designed around the IPRA guidelines

Build Your Own - Forged LS Engine Upgrade
Our LSX Performance Parts Custom BUILD YOUR OWN into one of our Forged Engines built with a purpose - To produce the highest performing engine package to suit circuit applications.
We take your existing standard LS engine and completely take it down to a bare block which is CNC machined and built with the highest quality ALL American forged internals.
This engine is built and designed around the IPRA guidelines regarding cubic inch capacity, GM Engine Block, retained alloy for reduced weight & Dry sump to eliminate oil starvation.
We only use the best products on the market that have been designed, tested & proven to handle high RPM for extended periods required to produce the results on race day!

Your New LS Circuit Engine Upgrade Package Includes
- YOUR GM LS Aluminum Engine Block;
- Premium Forged 4340 Steel Crank | 3.625" Inch;
- Premium Forged I Beam Conrods | 6.125" Inch;
- Carillo Bullet Custom Pistons Set | Dome Top With Valve Relief;
- ACL Race Series Conrod Bearings;
- ACL Race Series Main Bearings;
- Coated Cam Bearings;
- Custom Grind Hydraulic Roller Camshaft;
- Billet Timing Chain Set;
- Melling High Volume Oil Pump;
- Hydraulic Roller Lifters Set;
- Lifter Guides;
- MLS Head Gaskets Set;
- Chromoly Pushrods Set;
- YOUR LS3 Rocker Arms with CHE Trunnion Upgrade;
- YOUR Cylinder Heads;
- CNC Ported Intake Runners;
- CNC Ported Exhaust Ports;
- CNC Ported & Blended Combustion Chambers;
- Machined Deck Surfaces;
- .660" Lift Dual Valve Spring Kit;
- Titanium Retainers;
- Intake & Exhaust Valves;
- ARP Cam Bolts;
- ARP Harmonic Balancer Bolt;
- ARP Oil Pump Bolts;
- ARP Head Bolts;
- ARP Main Stud Kit;
- Oil Pick Up Support Bracket;
- LSX Billet Valley Plate;
- GM LS Timing Cover;
- GM LS Rear Plate;
- LSX Billet Rocker Covers;
- Block Deck Machined To Zero Deck Height;
- Cylinder Bores Machined & Torque Plate Honed;
- Align Hone Main Tunnel;
- De-Burred Oil Galleries;
- Clearance Bores;
- Balance Rotating Assembly;
- Blueprinted Bearing Clearances;
- Dummy assembly;
- Final assembly;

Want To Speak To Us About Your New Circuit Upgrade Package?
Sure! Give us a call on
(03)8595 4343
OR Simply click
Get In Touch
& schedule a time that best suits you. We will have one of our sales consultants contact you at your convenience.
Alternatively, We are available for live chat NOW.

Buy NOW!
Shop with confidence with free freight Australia wide & discounted pricing.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 77920465082

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4.3 ★★★★★
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Albert Sacluti
Omaha, US
★★★★★ 5
Great item and Affordable
Style: BE-157H 1-Pack
Perfectly fit for my corolla
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
R
Verified Purchase
Rafael B. Tejada
Louisville, US
★★★★★ 5
Breathe Easy!
Style: BE-728H 1-Pack
Ladies and gentlemen, buckle up, because we're about to embark on a whirlwind adventure of cleaner air and contortionist-worthy installation feats with the Spearhead HEPA Breathe Easy Cabin Filter! First off, let's talk about installation. If you're someone who loves a good yoga session or considers themselves a Cirque du Soleil dropout, this is the filter for you. The instructions are so clear and helpful that even a goldfish could follow them. However, be prepared to twist and turn in ways you didn't know your body could. And let me tell you, I'm not in the best of shape. I discovered muscles I never knew I had and positions that would make a pretzel jealous. But don't worry, it's all worth it. Once installed, my car’s air quality shot up faster than a rocket to Mars. And although my car is old and doesn't have any fancy AI, it felt like it was saying, "Ahh, finally, some quality air!" The air was so crisp and pure, I half expected to see little cartoon birds chirping around my head. And let me emphasize this: the product quality is top-notch. It not only works great but looks good too. I purchased this gem because my wife has bad allergies, and so far, it's been a game-changer. She hasn't sneezed once, and the car doesn't smell as musty with the air conditioning on. It's like we've been transported to a fresh, alpine air paradise every time we drive. In summary, the Spearhead HEPA Breathe Easy Cabin Filter is a game-changer. It's as easy to install as putting on socks—if putting on socks required you to become a human origami. But trust me, once it's in place, your lungs will thank you, and your car will feel like it's breathing the fresh, alpine air of the Swiss Alps. Five stars, and a standing ovation from my now incredibly limber body!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2024
L
Verified Purchase
LaDonna Knight
Whiting, US
★★★★★ 5
Works a lot better than the previous one.
Style: BE-775H 1-Pack
Great product at a great price. It seemed to fit almost perfect with out having to crunch it in. Highly recommend.
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Reviewed in the United States on March 5, 2026
J
Verified Purchase
Jinya Ramen Bar
Waukegan, US
★★★★★ 5
Great Cabin Filter Upgrade
Style: BE-729H 1-Pack, Style: BE-729H 1-Pack
I recently replaced my old cabin air filter with this one, and the difference was noticeable right away. Installation was quick and straightforward took less than 10 minutes with no special tools needed. What I appreciate most is the air quality improvement. The airflow feels stronger, and there’s a clear reduction in dust, odors, and outside pollution entering the cabin. If you’re looking for an easy, affordable upgrade that actually makes a difference in everyday driving comfort, this cabin filter is definitely worth it.
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Reviewed in the United States on November 19, 2025
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Ramr Imari
Belleville, US
★★★★★ 5
Excellent Air filter - Easy installation.
Style: BE-743 1-Pack
Excellent AC and Heater Cabinet odor defense air filter. I noticed immediately the smell coming out of the vents was fresher and the musty smell that was coming from the vents was crisper and cleaner. Very easy installation that you can do yourself and don’t need to pay a shop to do. The price is one of the best online and coms in quickly. It’s very sturdy, filter quality is excellent and it definitely improves the air quality and flow in your car. Fits perfectly like any OEM filter, this is a great buy for the price of an installation that will take you Les then 10 minutes to do yourself.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026

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