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Old 10-03-2006, 07:50 PM
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1971 LT1 heads: are they high performance

I got a set of 71' lt1 heads. I am puting them on a 350 with a TPI closed loop injection system. I need to know if I can get some hp out of these heads.

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Old 10-04-2006, 12:23 AM
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certainly not high performance by today's standards. As inexpensive as they are, get yourself some 885 casting vortec heads. They can be found for $250 a pair used and they flow not only much more quantity, but much better quality air. They'll support up to about 350 hp as cast, much more in the hands of a good porter.
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Old 10-04-2006, 10:24 AM
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Those heads were rated at 370gross hp on the LT1s. They flow ok as cast. As stated above a set of vortecs will out flow them by a lot, they have better combustion chambers also. You can get some power out of the LTs with some port work but it might be more worth it to go with a set of vortecs.
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Old 10-04-2006, 03:22 PM
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sell the LT-1 heads to someone restoring an LT-1 Camaro or Vette, you should get a good price for the from someone doing a resto. John
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