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New to LS1 Tech..a few questions regarding ls motors

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Old 06-28-2010, 05:04 PM   #1
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Location: Kingston, Ontario, Canada
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Default New to LS1 Tech..a few questions regarding ls motors

Hey guys

Im in the process of deciding where to take my 78 Trans Am build. Im trying to decide where i want to go with my engine. I have a Pontiac 400 in now and its not to bad, prolly around 350 hp. At first i was sure that i was going to put a forged internal 455 with a roller cam hoping to make around 500+. Then I saw an ls1 swaped 77 trans am and , and now im not sure if want to go with the 455 or a modern ls series motor . My questions are regarding the strength and durability of a stock ls1. Im trying to watch my money as I do my project and Im looking for the best hp for the $. The 455 is appealing for the power that comes from the cubic inches but its expensive. Ive seen full running ls1's for far less then the 455 short block i had planned. Could an ls1 make 500+ with stock internals and what kind of money is needed to get it there. Also there is an "ls3" for sale near by, how can i tell its an ls3 and not an ls1? Is there any block casting number i can look for ?

Thanks Mike
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