lt1 383 question

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Apr 7, 2011 | 05:04 PM

bizerk1

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From: Nw suburbs chicago

lt1 383 question

so if i was to put a 383 shortblock on completly stock lt1 is there anything i need to do or does it bolt right up?

Apr 7, 2011 | 05:16 PM

jester1614

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From: west phx

well the block would bolt up as long as its a lt1 block (Gen 1 should bolt up also, but there are other issues with that)

not sure if that answers your question as its kinda vague and unclear

Apr 7, 2011 | 06:31 PM

96capricemgr

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What are you trying to accomplish?

Apr 8, 2011 | 06:47 AM

RamAir95TA

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From: South Jersey

I suggest you do a search on this forum for "383" before you do anything else.

Apr 8, 2011 | 08:38 AM

James Montigny

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Quote:

Originally Posted by bizerk1

so if i was to put a 383 shortblock on completly stock lt1 is there anything i need to do or does it bolt right up?

If you buy a complete 383 shortblock (machined and assembled), it will bolt right in place where the old 350 was.
My guess is that you will want a larger cam and better heads to compliment it though.
The increase in displacement alone isn't worth a whole lot.
You'll also need a tune.

Now if we're talking about a long-block, yeah .. bolt it up and tune it.

Quote:

Originally Posted by RamAir95TA

I suggest you do a search on this forum for "383" before you do anything else.

Research is a good thing ... buying a new motor isn't a cheap project.
Expect to spend a minimum of 5-10k on the project if it's done right.

Apr 8, 2011 | 11:47 AM

bizerk1

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From: Nw suburbs chicago

just cause if my bottom end is bad now I mine as well do 383 i figure then do it and get heads and cam in yr, what problems could there be or would it be ok . ILL do a search

Apr 8, 2011 | 12:32 PM

RamAir95TA

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From: South Jersey

You could run a 383 on stock heads/cam, but don't expect any HP increase. In fact I'd be willing to bet you'd LOSE some.

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Apr 8, 2011 | 01:36 PM

James Montigny

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Quote:

Originally Posted by bizerk1

just cause if my bottom end is bad now I mine as well do 383 i figure then do it and get heads and cam in yr, what problems could there be or would it be ok . ILL do a search

Nothing wrong with that at all, just don't expect it to be any faster than what you have now.
You could also consider a 355 bottom end.

In the end, it's not just about cubes, it's about the entire package.