Unfortunately the 5.0 Engine was never designed for E-85 operation, the plastic secondary guides are softened quickly by chemicals contained in the E-85 and other race fuels to the point of failure as shown below. Furthermore increased valve spring pressure and load from aftermarket camshafts and cams place the part under extreme load causing it to bend on the outer edges as the hydraulic rod pushes upward to tension the chain. This causes secondary chain failure and ultimately catastrophic engine failure. MMR has the answer for these applications with its new Heat Treated Billet steel guides. The MMR guides eliminate this problem. The MMR chain guides are lubricated by oiling holes to prevent excessive wear and provide reliable operation for both street and strip vehicles and are available now for $99.99pr
These new guides are suitable and recommended for Pump Gas, E-85, Race fuels and Methanol. 2 Guides included for 1 engine. Direct replacement.
These new guides are suitable and recommended for Pump Gas, E-85, Race fuels and Methanol. 2 Guides included for 1 engine. Direct replacement.
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