Introducing the Holley GM LS3/L92 Modular Hi-Ram Intake Manifold, a cost-effective alternative to fabricated sheet-metal designed for high-performance applications where induction system height is not restricted. When paired with LS3/L92 style cylinder heads, this Hi-Ram intake showcases remarkable potential for both naturally aspirated (N/A) and forced induction setups, all within a budget-friendly range. Its bold race-bred styling adds a touch of aggression, making it ideal for various applications such as drag racing, muscle cars, marine, off-road, sandrails, pulling trucks, track, street-rod applications, and more.
Key Features:
- Modular base design for compatibility with a wide range of carbureted and EFI tops, appealing to builders and fabricators for custom induction systems.
- Optimized runner length and tapered cross-section for superior performance across a diverse range of engine configurations.
- EFI fuel rails machined for -8AN O-ring fittings, featuring passages large enough to handle high fuel flows and dampen pressure pulsations in the fuel system; standard with EFI Hi-Ram kits.
- Constructed from cast aluminum for durability.
Specifications:
- Intended for use on naturally aspirated or forced induction engines in the 6.0 to 7.0+ liter range, achieving maximum power at 7000-8000+ RPM.
Additional Features:
- Base Plenum Top Mounting Flange Height: 8.42” to the lifter valley cover flange on the engine block.
- Total Height with 92/105mm EFI Plenum Top: 12.32” to the lifter valley cover flange on the engine block.
- Port Size: 2.49” Height x 1.21” Wide
- Mounting Flange Gasket Type: Standard LS3 Molded O-Ring
- Plenum Top Gasket Type: 3/32” Round O-ring Cord
- Throttle Body Flange Location (with 92/102mm EFI Plenum Top): Height – 8.42” (from engine block lifter valley cover flange), Longitudinal Location – 3.84” (forward from engine block front flange), Angle – 25 deg. (down from vertical)
- Runner Length: 6.50”, As-Cast Runner Cross-Sectional Area: Tapered from 4.25 in² to 2.77 in²
- Manifold provisions for (1) 3/8 NPT and (2) 1/8 NPT fittings.
- Local Pickup Available:
- No
- Local Delivery Available:
- No
- Additional Handling:
- No
