M311 286cc Boost Monster Plus (SET)
The M311 BM+ is a built-to-order product – Lead Time Estimate: 6-8 Weeks
286 cc intake ports for big displacement LS3 monsters only.
- Built for “plus sized” units with higher compression applications (13:1+).
- Higher rpm (7500+) and/or higher cubic inch builds (427ci+).
- Higher boost levels (30psi+).
- Prime grade stainless steel intake valves, Inconel exhaust valves and CHE bronze guides.
- Fits all standard equipment: valve covers, headers, LS3 intakes, OEM-type LS3 rocker arms.
- Sold per set.
