Chevy GM LS1 2pc Fabricated Ram Air 98mm 4 Bolt EFI Intake Manifold Polished
Overview
Specs
| Brand: | Speedmaster |
| Part Number: | 1-148-050 |
| Part Type: | Intake Manifold, Fuel Injected |
| Engine Block Style: | LS1 |
| Injection Style: | Multi-port |
| Basic Operating RPM Range: | Idle-7,000 |
| Intake Section Included: | Complete |
| Intake Front Height (in.): | 10.00 |
| Intake Rear Height (in.): | 6.25 |
| EGR: | No |
| Injectors Included: | No |
| Fuel Rails Included: | Yes |
| Aftermarket Fuel Rail Required: | N/A |
| Throttle Body Included: | No |
| Throttle Body Bore Diameter: | 98mm |
| Supplemental Bosses Cast-In: | No |
| Supplemental Bosses Machined: | Yes |
| Runners Included: | Yes |
| Runners Removable: | No |
| Base Material: | Aluminum |
| Base Finish: | Polished |
| Quantity: | Sold Individually |
| Notes: | Intake manifold O-rings not included. |
Prop 65 Warning
Ratings & Reviews
2 Reviews
Requires some work but overall is a good intake
Eric| 08/29/2022 8:59 am
Like most aftermarket parts this intake requires a little massaging for correct fitment, you either have to use a low profile valley cover such as ICT Billet 551629 or if using a factory gen 3 valley cover with knock sensors you may have to grind the bottom off each intake runner off a little, you also may have to grind the top ridge off the intake runner to clear the lip that is above the mounting surface on the head. But overall seems like a good intake, seems to make better torque then a sheet metal intake based off the seat of the pants feel.
Include instructions!
Eric| 10/06/2024 7:43 pm
This intake is a beautiful piece, however, There are zero directions!, zero information about what size thread the ports are for the map sensor, vacuum port for brake booster. Some basic information would be great.