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View Poll Results: which way should I go?
Finish 408, use NO2 for now, and go FI next year?
6
40.00%
Good S/C kit on the stock 5.7L and build 408 threw year?
3
20.00%
Good T/C kit on the stock 5.7L and build 408 threw year?
6
40.00%
Voters: 15. You may not vote on this poll

S/C or T/C or Finish 408

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Old 02-26-2005, 08:35 AM
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Default S/C or T/C or Finish 408

OK guys, I have a delema,

I have enough money to do only one of three things. I have a iron block 6.0L and an eagle 4"crank. I can either finish the engine and FI it next year, or work on the engine threw the year and go ahead with some sort of FI. Which way should I go right now? My 5.7 is original with 64000 miles on it. It has had a good mix of passes and driving miles. I bought the car to play and it has done that. I have no problems at this time with the engine. I am replacing the trans though.

I do have a wet kit on it right now but that is pretty much useless unless I am at the track. I want to go FI and drop the wet kit. So please vote and let me know why you think I should do what ever.
Old 02-26-2005, 09:40 AM
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if you build the 408 for boost, it's not gonna be ideal for the bottle. mostly the CR, but the pieces should be ok. Now if you build it for the bottle, it will definately need some low CR pistons and a different cam when you boost it.

A turbo kit sized for a 5.7 might not be ideal on the 408 when the time comes. Depends on what you want to do with it in the future.

blowers are the devil
Old 02-26-2005, 10:42 AM
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Put a blower on what you got till it dies and build the 408 for the blower. When the original motor has had enough put the 408 in with BOOST.
Old 02-26-2005, 11:57 AM
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We put a T76 Q-trim on a friends 408. Saw 4:1 exhaust to intake pressure ratio. I wouldn't turbocharge a 408 unless you're going to run big twins or a large frame single.
Old 02-26-2005, 01:01 PM
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So ya'll think I should do the FI now, and finish the 408 out for what ever FI I go with. What all would I have to upgrade for the 408 if I go turbo now and use it for the S/C?

Same question for the S/C.

I just can not make up my mind between S/C or T/C.
Old 02-26-2005, 09:41 PM
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Is that it? Only 5 people have any input to this?
Old 02-26-2005, 10:15 PM
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go with the s/c now! You'll have alot of fun with it. Have the 408 ready to drop in next winter.
Old 02-27-2005, 11:04 PM
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I say forget the 408 and add a turbo or two to your 346.

Mark
Old 02-28-2005, 10:45 AM
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build a turbo kit to work just right with the 408 you plan to build, bolt it up on the 346 and keep the boost down, then do your motor work durring the year and when you get it done crank the boost up and tune it all to work just right together

id say thats the way to go as long as you dont mind waiting so long to turn the boost up and as long as you dont think you will change your mind half way through your engine build and build like a 427+ or stock displacement
Old 02-28-2005, 10:58 AM
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Spin you got mail!
Old 02-28-2005, 02:51 PM
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sc the stock engine for now and build the 408



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