Only thing bad about the LT1 is the water pump weeps onto the optispark. Easy prevention is to thread in a brass barb with a 8" length of hose to route the coolant away. GM's cost reduced optisparks aren't as good as their originals. I've had over 30 LT1 powered cars and only 1 has had to have the optispark replaced at around 210K miles. The 93 will have to have an eprom burned for the pcm if you do any tuning. It's not a flash memeory like 94+. It will also have a non-vented optispark for 93 and 94. The best year to own in my opinion is the 95. It's still obd1 and emission exempt where I live. The obd1 tuning software is unlicensed and can be bought for under $200. Also great diagnostic software can be bought for under $100. The LT1 f-bodies are a real bargin right now. They're too new to be collector cars and the prices have really dropped with most wanting the LS powered cars. Nice 6 speed manual cars that are fun drivers can be bought for under $5K. I don't like the cheap door panels and the huge plastic dashes that are prone to cracking in the sun. Also the leather seats seam to be worn out on alot of the cars.
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