reservoirdogs12

So let's say before I start anything I take care of transmission/fuel system/rear end issues myself. Assume I can drop the engine and bring it to a reputable builder (and ship the heads to Advanced inductions). I'd install the front mount turbos and piping myself. No issues there.

I'd only run 91 octane. Not interested in a 1000hp ethanol/race fuel monster...

How much to have someone rebuild/prep the block for the amount of boost/timing/whatever necessary to get a *reliable* twin turbo lt1 that still may make 500-600 horsepower? (I'd install it all myself again and tow it to TPiS for a tune.)

I'm not interested in a budget friendly naturally aspirated build or supercharging. I wanna play with snail shells and learn to tame them...

reservoirdogs12

I forgot to mention: this would be the cost of both parts and labor. (SPECIFICALLY for work done on the block.)

1313

Wish I could tell you it sounds like a badass build.

Shownomercy

iTrader: (1)

3-4k for a mild shortblock.

reservoirdogs12

Gotcha. Sounds reasonable. Do you think its possible to still get 20+ mpg highway in overdrive with a 6 speed and modest gearing if I grandma it?

Shownomercy

iTrader: (1)

Most likely, should be a baby cam and a decent tune

97WS6SCharged

iTrader: (1)

Mild cam and decent heads it should be more than possible. Why do twins though? A single 76mm would be more than capable of 600 rwhp on an LT1.

Shownomercy

iTrader: (1)

LT1s need all the help they can get to make any power at all.

2000RATA

Not true. Even heads cam LT1's make 400+ rwhp. My advice is ported heads, custom cam, small turbos like 58's and it would be an animal. However LT1's worked to get low 20's mpg's so with bigger cam I would not count on low 20's still.

97WS6SCharged

iTrader: (1)

I was pushing 30 mpg on the highway with my 97 when it was stock. 24-25 with a 224/236 blower grind/S and T trims and 19-21 with a 234/250 custom grind and a 383/YSi. 6 speed car with 3.50 gears in a 9 inch, full interior, etc... An auto will lose some mpg but 20 is more than possible with the right setup.

2000RATA

The stone stock '97 auto my g/f had for 4 years would barely get 23 on a long highway trip. No one believes me that my stock '00 TA got 29 on the highway.