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-   -   383 Gas and Daily Drivability. (http://www.njfboa.org/forums/showthread.php?t=20532)

r0nin89 09-24-2006 04:39 PM

I'm hoping rwhp so I can sail a 12 flat. We'll see though.

unstable bob gable 09-24-2006 11:30 PM

HELL-OH? Is this thing on???? Do the 383, broh...you won't regret it.

r0nin89 09-25-2006 07:04 AM

Quote:

Originally Posted by unstable bob gable
HELL-OH? Is this thing on???? Do the 383, broh...you won't regret it.


Alright so say I pick up a 383 crank and put it in my 355 will there be any compression or any other issues??

Tru2Chevy 09-25-2006 12:52 PM

400 rwhp should send a decently setup 3rd gen into the 11's without much effort.

- Justin

WildBillyT 09-25-2006 12:53 PM

Quote:

Originally Posted by Tru2Chevy
400 rwhp should send a decently setup 3rd gen into the 11's without much effort.

- Justin

X2. Good chassis tuning is imperative.

BonzoHansen 09-25-2006 01:04 PM

Quote:

Originally Posted by WildBillyT
X2. Good chassis tuning is imperative.

Subframe connectors FTW, along with other neato stuff.

r0nin89 09-25-2006 01:58 PM

Yeah subframs are next after rear. Then springs then comes the 355. I'm gonna drop it with 300hp at first then upgrade heads for the gain. Its got a hot cam limited by the heads right now.

Pampered-Z 09-26-2006 12:45 PM

Quote:

Originally Posted by r0nin89
Alright so say I pick up a 383 crank and put it in my 355 will there be any compression or any other issues??


Not sure if you realize you can't just drop the crank in. The block will need to be clearanced. The oil pan rail area and bottom of the cylinder bores need to be cut so that the crank weights will clear them. Likewise the oil pan will need to be hammers ( or replaced ) to clear the crank as well.

For the rotating assembly, you will need piston designed for a 383, which has a relocated wrist pin, and shorter piston skirts to again clear the crank. Stock piston on a stroker crank will put the piston into the valves or bind against the crank. I'm not even 100% sure the 5.7 rod will even work, might be some interference issues with the rod bolts? Most strokers 383/396 are 5.85" or 6" rods, and again, piston design and rod legnth need to be matched.

One other thing you need to look at is the cam lift. On my motor after the block was decked and the heads machined I did not have enough piston to valve clearance for the 600 lift cam I was planning to use. I didn't want to run an excessively thick head gasket or have material removed from the pistons to notch them so I went with a lower lift cam (544 lift).

My .02

JB

r0nin89 09-26-2006 06:30 PM

Yeah right now I know everything clears fine. Its got a hot (but not rediculous) cam in it that is obviously small enough to flow with the paper weights heads on it. When I upgrade to vortecs I may buy a new cam just to know the exact numbers I have.


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