zgeezer Posted September 24, 2011 Share Posted September 24, 2011 The Gen III truck engines 4.8 and 5.3L iron blocks are available and very cheap,. Although the stock intake manifold stands about 4 inches higher that the LS1 F body versions, they are quite good performers. Here are the dyno pulls performed in July and August of 2004 by CHP (Chevrolet High Performance) magazine on the various intake manifolds available at the time. Well worth the read: Big_Ugly g Quote Link to comment Share on other sites More sharing options...
mutantZ Posted September 25, 2011 Share Posted September 25, 2011 Would the LM7 manifold clear a non cowl induction style hood? Quote Link to comment Share on other sites More sharing options...
zgeezer Posted September 25, 2011 Author Share Posted September 25, 2011 Would the LM7 manifold clear a non cowl induction style hood? Not if you use the JCI installation kit. My calculations put the front part of the manifold about 2 inches higher than the hood. I think a standard Nissan competition hood scoop will cover the manifold. g:) Quote Link to comment Share on other sites More sharing options...
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