The Texas Speed B.F.D. Chop Monster L83 V2 Camshaft is the loudest grind Texas Speed offers for the GM Gen V 5.3L L83. It was specced with Zac Mertens of Hoonigan, known as the Chop King, with one goal: the most savage idle a naturally aspirated L83 can produce while still making strong power through the whole curve. The cam is ground on a 110 degree lobe separation angle with 224/236 duration at .050" and .610" lift, and it carries a 10 percent larger fuel lobe for the direct-injection pump.
Texas Speed rates the chop as very aggressive and lists an operating range of 2,000 to 6,500 rpm with an estimated gain of 60 or more horsepower. A 3,000 rpm or higher stall converter is required, along with the TSP/PAC .660" dual LT valve spring kit or Manton conical springs and TSP hardened chromoly pushrods. The cam does not retain AFM/DOD, so a DOD/AFM delete kit is needed, the VVT phaser must be locked out, and a custom tune is required after installation. Texas Speed says it can still be daily driven with the right converter and tuning.
Specifications
- Duration at .050": 224/236
- Valve lift: .610"/.610"
- Lobe separation angle: 110 degrees
- Intake centerline: 110 degrees
- Fuel lobe: +10% over stock
- Engine: GM Gen V 5.3L L83, naturally aspirated
- Desired compression ratio: 11.1:1 or higher
- Recommended valve springs: TSP/PAC Dual .660" LT valve spring kit or Manton conical valve springs (upgraded springs required); TSP hardened chromoly pushrods recommended
- Aftermarket stall converter required: Yes, 3,000 rpm or higher
- Upgraded rear gear required: No
- Operating range: 2,000 to 6,500 rpm
- Estimated power increase: 60+ hp
- DOD/AFM delete kit and VVT phaser lockout: Both required
- Vehicle usage: Street performance, mid-range
- Chop level: Very aggressive
Note: This camshaft does not retain the factory AFM/DOD cylinder deactivation, so a DOD/AFM delete kit is required.
Note: Texas Speed requires the VVT phaser to be locked out with a phaser lockout kit on all of its LT camshafts, including this one.
Vehicle Applications
Engine application per Texas Speed: GM Gen V 5.3L L83 (TSP's fitment filter lists L83/L84/L82). Vehicle list reflects the 5.3L truck and SUV fitment published by Texas Speed for this part number.
GMC Sierra 1500
- 2014 GMC Sierra 1500
- 2015 GMC Sierra 1500
- 2016 GMC Sierra 1500
- 2017 GMC Sierra 1500
- 2018 GMC Sierra 1500
- 2019 GMC Sierra 1500
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2022 GMC Sierra 1500
Chevrolet Silverado 1500
- 2014 Chevrolet Silverado 1500
- 2015 Chevrolet Silverado 1500
- 2016 Chevrolet Silverado 1500
- 2017 Chevrolet Silverado 1500
- 2018 Chevrolet Silverado 1500
- 2019 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
- 2022 Chevrolet Silverado 1500
Chevrolet Suburban
- 2015 Chevrolet Suburban
- 2016 Chevrolet Suburban
- 2017 Chevrolet Suburban
- 2018 Chevrolet Suburban
- 2019 Chevrolet Suburban
- 2020 Chevrolet Suburban
- 2021 Chevrolet Suburban
- 2022 Chevrolet Suburban
Chevrolet Tahoe
- 2015 Chevrolet Tahoe
- 2016 Chevrolet Tahoe
- 2017 Chevrolet Tahoe
- 2018 Chevrolet Tahoe
- 2019 Chevrolet Tahoe
- 2020 Chevrolet Tahoe
- 2021 Chevrolet Tahoe
- 2022 Chevrolet Tahoe
GMC Yukon
- 2015 GMC Yukon
- 2016 GMC Yukon
- 2017 GMC Yukon
- 2018 GMC Yukon
- 2019 GMC Yukon
- 2020 GMC Yukon
- 2021 GMC Yukon
- 2022 GMC Yukon
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
FAQ
What engine does the Texas Speed B.F.D. Chop Monster L83 V2 cam fit?
Texas Speed lists the B.F.D. Chop Monster L83 V2 for the naturally aspirated GM Gen V 5.3L L83 used in 2014 and later Silverado and Sierra 1500 and 2015 and later Tahoe, Suburban and Yukon. TSP's fitment filter also lists the later L84 and L82 5.3L engines.
How aggressive is the idle on the BFD Chop Monster cam?
Very aggressive. Texas Speed designed this 110 LSA grind with Hoonigan's Zac Mertens to deliver the most savage chop possible from a naturally aspirated L83, and rates its chop level as very aggressive.
Do I need a stall converter with the B.F.D. Chop Monster L83 cam?
Yes. Texas Speed requires an aftermarket torque converter with a 3,000 rpm or higher stall for this camshaft. With the correct converter and tuning, Texas Speed says the truck can still be daily driven.
What valve springs and pushrods does the BFD L83 V2 cam require?
Upgraded springs are required. Texas Speed specifies the TSP/PAC .660" dual LT valve spring kit with titanium retainers or Manton conical valve springs, and recommends TSP hardened chromoly pushrods with this camshaft.
Is a DOD delete or phaser lockout needed for this camshaft?
Both. The B.F.D. Chop Monster does not retain the factory AFM/DOD cylinder deactivation, so a DOD/AFM delete kit is required, and Texas Speed requires a VVT phaser lockout kit on all of its LT camshafts. A custom tune is required after installation.
How much power does the B.F.D. Chop Monster L83 cam add?
Texas Speed estimates a gain of 60 or more horsepower on a Gen V 5.3L L83 with the supporting parts in place, with an operating range of 2,000 to 6,500 rpm. Actual results depend on the rest of the combination and tuning.
