Change is Inevitable
#182
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2nd fastest 5.3 ECSB
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From: NorCal
Not speaking for Magnuson but to me it appears the spacers are necessary to get the head to manifold angles correct. The blower sits higher than the 112 does. Even with a modified vally cover you stilll need the spacers to get the fit right.
#183
Wrong, you need the valley cover. We would NEVER use spacers to get an angle correct. The spacers came about as a test on the engine dyno, and are used to get the manifold over the DOD valley cover used on the new trucks.
Last edited by BlownChevy; Feb 8, 2009 at 10:53 AM.
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