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CC BOY · 01-10-2026, 03:08 AM

Hello everyone, and greetings to all the veterans here! I’m a Camaro enthusiast from China. Please excuse my English—it’s not the best. I picked up my car in 2021, a 2013 fifth-gen Chevrolet Camaro 2SS with the L99 engine and 6L80 transmission. I absolutely love this car and enjoy every moment driving it on the track. Over the years, I’ve experimented with modifications and upgrades, but I’ve gradually reached its limits. That’s why I’ve decided to take the transformation further. In China, there aren’t many people who are into American muscle cars (most prefer JDM or German vehicles), and expertise in modifying them is scarce.

My current setup includes: KW V3 ClubSport suspension, 20-inch forged wheels, AP9570 front calipers with Chinese ADTORY racing brake pads and rotors, a Flowmaster long-tube exhaust, KOOKS headers and manifold, Injen intake system, TROFEO R tires, an APR GTC-300 rear wing, a custom front splitter, Recaro bucket seats, and more. As mentioned, I’ve been exploring its limits step by step, and now I want to focus on enhancing the engine performance.

First, I plan to convert my L99 engine to an LS3. Below is the parts list I’ve put together through my own research. However, I don’t have any friends or experts around me familiar with American car modifications, so I’m turning to you all for guidance:

ARP Head Stud Kit ARP-234-4317

Johnson Lifters 2110R

Chevrolet Performance Lifter Trays 12595365

KAT-A2390 High Capacity Gen3/4 Oil Pump

BTR LS.660 Dual Spring Kit

BTR Premium LS & LT Rocker Arm Trunnion Kit - TK002

BTR LS3 Stage 4 V2 Camshaft

BTR VVT Conversion Kit Delete Kit

Genuine GM LSA/LS9 Head Gasket

Rollmaster Timing Chain - 06+ LS2 & Wet Sump LS3 - Single Roller - 4 Pole - 58X - CS1190

Circle D HPseries 278mm 6L80LS Torque Converter; 3000-3200 rpm - w/Billet Cover #CDS-07N-09-07-2A

Camshaft Shim

Timing Chain Damper

Camshaft Bolts

Valve Cover Plate

Transmission Seal

Water Pump Gasket

Crankshaft Bolts
........

My goal is to achieve at least 480 wheel horsepower (ideally more) on a DynoJet dynamometer, so I can fully leverage the car’s potential on the track.

I’d appreciate your advice on the following:

Is this parts list sufficient, or are there adjustments needed?

Have I overlooked anything important?

How well do these components work together? (Specifically, is the BTR Stage 4 camshaft compatible with the Circle D HPseries 278mm 6L80LS torque converter rated for 3000-3200 rpm?)

PS: This is just the first phase of my build. Eventually, I plan to upgrade the cylinder heads, intake manifold, pistons, connecting rods, etc., staying true to a high-power naturally aspirated path. So, I want to choose parts that leave room for future improvements.

Thank you all in advance for your help!

01-10-2026, 03:08 AM	#1
CC BOY Drives: 2013 CAMARO 2SS Join Date: Aug 2024 Location: CHINA Posts: 3	Regarding Upgrading My L99 Camaro SS Hello everyone, and greetings to all the veterans here! I’m a Camaro enthusiast from China. Please excuse my English—it’s not the best. I picked up my car in 2021, a 2013 fifth-gen Chevrolet Camaro 2SS with the L99 engine and 6L80 transmission. I absolutely love this car and enjoy every moment driving it on the track. Over the years, I’ve experimented with modifications and upgrades, but I’ve gradually reached its limits. That’s why I’ve decided to take the transformation further. In China, there aren’t many people who are into American muscle cars (most prefer JDM or German vehicles), and expertise in modifying them is scarce. My current setup includes: KW V3 ClubSport suspension, 20-inch forged wheels, AP9570 front calipers with Chinese ADTORY racing brake pads and rotors, a Flowmaster long-tube exhaust, KOOKS headers and manifold, Injen intake system, TROFEO R tires, an APR GTC-300 rear wing, a custom front splitter, Recaro bucket seats, and more. As mentioned, I’ve been exploring its limits step by step, and now I want to focus on enhancing the engine performance. First, I plan to convert my L99 engine to an LS3. Below is the parts list I’ve put together through my own research. However, I don’t have any friends or experts around me familiar with American car modifications, so I’m turning to you all for guidance: ARP Head Stud Kit ARP-234-4317 Johnson Lifters 2110R Chevrolet Performance Lifter Trays 12595365 KAT-A2390 High Capacity Gen3/4 Oil Pump BTR LS.660 Dual Spring Kit BTR Premium LS & LT Rocker Arm Trunnion Kit - TK002 BTR LS3 Stage 4 V2 Camshaft BTR VVT Conversion Kit Delete Kit Genuine GM LSA/LS9 Head Gasket Rollmaster Timing Chain - 06+ LS2 & Wet Sump LS3 - Single Roller - 4 Pole - 58X - CS1190 Circle D HPseries 278mm 6L80LS Torque Converter; 3000-3200 rpm - w/Billet Cover #CDS-07N-09-07-2A Camshaft Shim Timing Chain Damper Camshaft Bolts Valve Cover Plate Transmission Seal Water Pump Gasket Crankshaft Bolts ........ My goal is to achieve at least 480 wheel horsepower (ideally more) on a DynoJet dynamometer, so I can fully leverage the car’s potential on the track. I’d appreciate your advice on the following: Is this parts list sufficient, or are there adjustments needed? Have I overlooked anything important? How well do these components work together? (Specifically, is the BTR Stage 4 camshaft compatible with the Circle D HPseries 278mm 6L80LS torque converter rated for 3000-3200 rpm?) PS: This is just the first phase of my build. Eventually, I plan to upgrade the cylinder heads, intake manifold, pistons, connecting rods, etc., staying true to a high-power naturally aspirated path. So, I want to choose parts that leave room for future improvements. Thank you all in advance for your help! __________________ I'm from China,really love camaro!