Re: LT1 compared to L79
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Jeff H</div><div class="ubbcode-body">If you're talking stock, I don't think you can really compare a solid lifter engine to a hydraulic lifter engine, especially idle quality, vacuum and putting behind an auto trans.</div></div>
wouldn't hydraulic vs solid lifter be irrelavant at idle? doesn't the lifter type difference come in to play at the top end of the rpm curve (solid lifters win). I am still stumped on why some say a L79 can't idle smoothly while in gear with an PG (the main reason it was not offered). I agreed with that until I noticed the LT1 came with autos, so thus the questions above. GM offered a 409 340hp (not a performance slouch) with a PG, as one example that was 10HP down from a L79. I picture a L79 to be hard to manage to keep at idle at lower RPMs. The LT1 has to be happier down in the lower RPMs when in drive in an auto application.
The vacuum difference I do not get at all between the 2 engines.
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