the 3.8...stroke-able?

[navyblue2000]

i knwo the block can be BORED .030" over...but i read in a camaro performer mag about the 305, how it wasnt great because it's stroke is less than 4"(breathing issues). i know the stroke on a 3.8 is 3.4". can it be punched out more, or is it smart to maybe DE-stroke it, like some have done with a 305? thanks

[12secondv6]

I think gand nat owners do that and make a 4.1?
I know the engines are completely different so that was a waste of me typing [img]smile.gif[/img]
The only thing that would hold us back is the computer, or would it?
All it does is add more combustion area right?
So then it might work?

[Dominic]

Keep in mind that while stroking an engine will increase compression and power capabilities, it will reduce the redline given the materials used inside the engine are the same.

The general idea is "less dtroke = higher redline".

Keep in mind you can get around this by using stronger internals made from titanium alloys instead of cast steel - even a forged product would probably work. Just don't go smacking the heads or valves with the piston [img]smile.gif[/img]

[DEE97GTP]

Nope, this was from people that have torn down the engine and checked everything out. Even if you could, we are talking about custom parts.

DEE

[V6Turbo]

<blockquote>quote:</font><hr>Originally posted by DEE97GTP:
Nope, this was from people that have torn down the engine and checked everything out. Even if you could, we are talking about custom parts.

DEE<hr></blockquote>

There ya go. You'll need first of all, a completley custom cam with a different stroke, different length rods, etc.

[jughead]

I have had a GN...


I recently sold it and it got wrecked so Im helping the guy part it out..

There a place here that sells L67 internals.. which are the same as ours, just different compression...

Conclusion...THE INTERNAL sizes are the exact size!

[nocutt]

There are several issues with the new series II 3.8's...to effectively punch out this engines one will have to be aware of the internal balancer, the shorter deck height, less "meat" in the block and even after all this custom work there is the blasted PCM...all in all, not worth the beans because after everything within this parameters stated you have only punched the 3.8L to ABOUT 4.0L...now that really sucks!!

[ December 30, 2001: Message edited by: nocutt ]</p>

[Mike Mayron]

<blockquote>quote:</font><hr>Originally posted by V6Turbo:

You'll need first of all, a completley custom cam with a different stroke...<hr></blockquote>

I think you mean crank. The cam controls the valve train not the stroke.

Maybe you meant those things seperatly, but it didn't sound like it.

[Jeff Pristelski]

<blockquote>quote:</font><hr>Originally posted by TheCardinal:
Keep in mind that while stroking an engine will increase compression and power capabilities, it will reduce the redline given the materials used inside the engine are the same.

The general idea is "less dtroke = higher redline".

Keep in mind you can get around this by using stronger internals made from titanium alloys instead of cast steel - even a forged product would probably work. Just don't go smacking the heads or valves with the piston [img]smile.gif[/img] <hr></blockquote>

You just have to get hemi pistons and a custom head... ;)