The BTR Trinity intake manifold is a cast aluminum, 3-piece short-runner design built for LS cathedral port applications (LS1/LS2/LS6), finished in black powder coat with a straight-opening 105mm plenum and a 105mm throttle body flange.
The Trinity uses O-ring sealing between the runners, plenum, and cylinder heads for a leak-free connection with easy serviceability. The original short-runner, 3-piece layout is designed to offer the flexibility of far more expensive billet intakes. Optimum operating range is 6,000-8,500 RPM naturally aspirated and 3,000-6,500 RPM boosted, with an available burst-plate option for max-effort boosted builds.
- Part Number: TRA-1-BLK-P105
- Application: GM LS cathedral port engines (LS1/LS2/LS6)
- Throttle Body Flange: 105mm, straight opening plenum
- Port Style: Cathedral port, multi-port
- Construction: 3-piece, cast aluminum
- Sealing: O-ring between runners, plenum, and cylinder heads
- Finish: Black powder coat
- Optimum RPM Range: 6,000-8,500 NA / 3,000-6,500 boosted
- Fitment: Fits under flat hoods of C5/C6/C7/C8 Corvette and LS F-body platforms; accepts common LS/LT 4-bolt throttle bodies; LS Truck accessory drive does not fit
- Type: Kit
FAQ
What engines is the TRA-1-BLK-P105 Trinity intake manifold designed for?
It's designed for GM LS cathedral port engines, including LS1, LS2, and LS6.
What is the optimum RPM range for this intake?
BTR recommends 6,000-8,500 RPM naturally aspirated and 3,000-6,500 RPM boosted.
How does the Trinity intake seal to the cylinder heads?
It uses O-ring sealing between the runners, plenum, and cylinder heads for a leak-free, easily serviceable connection.
Will this intake fit under a stock hood?
The short-runner Trinity design fits under the flat hoods of C5, C6, C7, and C8 Corvettes as well as popular LS F-body platforms. Note that the LS Truck accessory drive does not fit the Trinity intake.

