TRE PERFORMANCE
About TREperformanceContact UsNewsPoliciesProject Cars
SHOP ONLINE
Air InductionBrakesClutch/FlywheelElectronicsEnginesExhaustFeatured ItemsFront End Accessory Drive SystemsFuel SystemInteriorOil SystemRear EndRotating AssemblySuperchargersTop End Engine kitsTuning ServicesTurbochargersValve CoversValvetrainGarage SaleCustomer RidesTRE Project Rides

Contact Us

1725 Monrovia Ave. STE D7 Costa Mesa, CA 92627
877-514-9494

Safe & Secure Shopping

Copyright © 2026 TRE Performance. All Rights Reserved. Powered by  Web Shop Manager.

tre-performance
About TREperformanceContact UsNewsPoliciesProject Cars
NEWSTRE PROJECT RIDESCUSTOMER RIDES
ContactPoliciesAbout UsFAQs

MY CART

YOUR CART IS EMPTY

Browse parts and accessories to get started.

tre-performance
The Racers Edge PerformanceSALES@TREPERFORMANCE.COM
760-586-5617
Cylinder Heads
Air Induction
Engines
Fuel System
Interior
Superchargers
Top End Engine kits
Cylinder Heads
Air Induction
Engines
Fuel System
Interior
Superchargers
Top End Engine kits
HOME / PRODUCT / Trick Flow 580 HP LS3 Top-End Engine Kit GenX 69cc for GM LS3/L99
Trick Flow 580 HP LS3 Top-End Engine Kit GenX 69cc for GM LS3/L99

Trick Flow 580 HP LS3 Top-End Engine Kit GenX 69cc for GM LS3/L99

SKU: TFS-K326-580-520
$3,948.99
Loading options…

Description

Are you still confused as to which parts you need to get the performance you want? Quit wasting time and second-guessing yourself. Trick Flow® for your GM LS has already done the work for you with their Top-End Engine kits. Designed and dyno-tested to deliver the performance you crave for less than purchasing the parts separately, these kits save time and money!

What's in these GenX® Top-End Engine kits?

* A pair of Trick Flow® GenX® street/strip cylinder heads
* A specially matched hydraulic roller cam
* Pushrods
* Head gaskets
* Head bolts
* Exhaust gaskets
* Balancer bolt

Each kit includes a pair of Trick Flow GenX Street/Strip cylinder heads, a specially matched hydraulic roller cam, pushrods, head gaskets, head bolts, exhaust gaskets, and balancer bolt.


Specification needed to make 580 HP as pictured:
GM 6.2L LS3 short block with 10.43:1 compression, Trick Flow GenX 255 square port cylinder heads (TFS-3261T002-C01), Trick Flow Track Max hydraulic roller cam (TFS-32603001), stock L92 intake manifold with 90mm throttle body, Kooks headers with 1 7⁄8" primaries, and dual exhaust with 3" Flowmaster mufflers.

 

KIT/COMBO CONTENTS:

 

TFS-21407750 - Trick Flow Pushrods, 5/16 in. Diameter, 7.750 in. Long, 4130 Chromoly, 0.080 in. Wall, For Guideplates, Set of 16

 

NAL-12557840 - Chevrolet Performance Harmonic Balancer Bolt, Steel, Cadmium, Hex Head, Chevy, 4.8, 5.3, 5.7, 6.0L, Each

 

TFS-30690931 - Trick Flow Exhaust Manifold Gaskets, Round Port, Multi-Layer Steel, 0.030 in. Thick, Chevy, Small Block, Pair

 

NAL-12610046 x2 - Chevrolet Performance Head Gasket, MLS, 4.080 in. Bore, .051 in. Compressed Thickness, Chevy, Small Block, LS3/L92, Each

 

TFS-32603001 - Trick Flow Camshaft, Hydraulic Roller, Advertised Duration 278/286, Lift .625/.625, Lobe Sep. 113, GM LS, Each

 

TFS-3261T002-C01 x2 - Trick Flow Cylinder Head, GenX® 255, CNC Comp Port, Assembled, 69cc CNC Chamber, 448 Lb. Springs, Ti Retain, GM LSX, Each

 

TFS-92011 - Trick Flow Cylinder Head Bolt Kit, Hex Head, Chromoly, Black Oxide, Torque-to-Yield, 2004+ Short Style, GM LS, Each

Quantity: Sold as a kit.

 

Notes: Camshaft specs are 278/286 duration, .625 in./.625 in. lift, 113 lobe separation angle. Trick Flow dyno-tested this kit using a GM 6.2L LS3 10.43:1 compression engine, a L92 90mm intake manifold, Kooks headers with 1 7/8 in. primaries, and dual exhaust with 3 in. Flowmaster mufflers.
Custom tuning required. Automatics require torque converter upgrade.


Instruction Sheets

Tell a Friend

Your Name:
Product:Trick Flow 580 HP LS3 Top-End Engine Kit GenX 69cc for GM LS3/L99

200 characters remaining