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AFR 15° LS1 Mongoose Head, 215cc, Set/2

Fully CNC Ported 215cc Intake Port
Flows over 300 cfm
65cc Combustion Chambers
3.900 or Larger Bore
2.020" Intake Valve
1.600" Exhaust Valve
.600 Lift Dual PAC Spring
Will Work with Stock Rocker Arms
Fully Assembled
Set of 2
Please Call for Availability


AFR's 215cc mongoose cylinder heads a recommended for moderate street or street/strip builds with displacements up to 408 cubic inches operating at or below 6500 RPM. This medium sized, high velocity torque monster flows 312 CFM @0.600" of lift.

Stock GM Rocker Arms - GM Rocker Arms are not designed/engineered to accommodate aftermarket cams or higher spring pressures. At a minimum AFR recommends using Bushing Trunion Kit. Other available options are aftermarket kits from Yella Terra, Scorpion,or Comp Cams. Without the proper parts you will experience accelerated guide wear.

Boosted/Nitrous Applications - We strongly recommend considering Inconel exhaust valves and AFR's optional heavy duty intake valve for power adder applications. Since boosted or nitrous oxide applications accelerate RPM quickly, additional spring pressure is required. We strongly recommend upgrading your valve springs or increasing your valve spring pressures since boost pressure on the valve reduces spring tension. For example, 15lbs boost on a 2.125 OD valve reduces the springs closed seat pressure by approximately 40-45lbs.



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  • 32.0 lbs.

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