This L86 intake and throttle body is ported by Chuy's Porting and Performance and ships directly from Chuy once complete (estimated 3-5 business day lead time).
**NOTE** - This intake swap IS NOT 100% bolt-on for L83/L86 Trucks and will require modifications in order to complete the swap (detailed below). This listing is for the ported intake manifold only (with throttle bodies available as an option).
The LT2 intake manifold is quickly becoming a popular option for customers looking for more power than the L86 intake can provide on their 14+ L83/L86 combos. Chuy has seen gains of up to 22 RWHP on stock 6.2L engines and over the stock L86 intake and more than 30 RWHP over ported L86 intakes on healthy cammed 6.2L combinations. This intake swap is not recommended on 5.3L combinations unless the customer is using an aggressive camshaft, 3600+ RPM stall speed, and 3.73 or higher gear ratio (if 6spd).
Chuy's porting service involves porting the intake runners, opening the TB inlet opening to match the LT5 throttle body, and shaving the bottom ribs of the intake to clear the high pressure fuel injection pump on L83/L86 engine applications (will not clear LT4 pump).
This intake is also an excellent upgrade for Gen V LT1 engines as well.
Additional Components needed to swap on L83/L86:
- L86 or LT5 Throttle Body (available as an option on the drop-down menu)
- L86 Throttle Body Gasket (if the engine is 5.3L)
- Gen 4 Intake Bolts (Available here)
- Idler Pulley (equivalent to part number 231046)
- Serpentine Belt (equivalent to part number K060721)
- MAP Sensor Extension (roughly 24")
- EVAP Canister Purge Solenoid Wiring and Hose Extension (will require cutting and splicing wires)
*Intake gaskets must be reused from original intake, please be careful when removing. NOT compatible with factory L83 throttle body to inlet tube coupler. Most aftermarket cold air intake packages will include the larger 6.2L coupler.
*WILL NOT WORK WITH LT4 INJECTION PUMP
*Not compatible with L83 throttle body, requires L86 or LT5 throttle body