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260ZT

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  1. These 2 engines are great for making power. TPI is more of a torque engine and factory they ran out of wind around 4500-5k rpm. The last if the TPI engines where rated around 250hp and around 350 lb ft of torque. I love TPI but it is aging out and becoming harder to find parts for.

    Depending on what year Lt-1 you found (Impala, caprice, camaro, corvette) you can range from 260-300 hp. It did not have the torque rating like the TPI, around 300 lb ft. But be careful, if you buy a Lt-1 from some caprices they can be 4.3ltr Lt-1 V8s. The Lt-1 with the hot cam and roller rockers will easily make 400hp. The camaros and corvettes have aluminum heads and the caprice and impalas have steel heads.

    The Lt-1 is the cheaper way to build power v. the TPI.

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