383 is in and running !!!
Thread Starter
Pro
Joined: Dec 2002
Posts: 603
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From: 84 383 XFire Chandler, AZ
383 is in and running !!!
Finally got everything hooked up and fired up the 383 for the first time today. The exhaust is not hooked up - I need to get to the exhaust shop so I get to drive it a little more uncorked. 
I did take her out for a quick jaunt around the block and lets just say she is quite "snappy". I still have a bunch of tuning to do but now I can at least sit in the drivers seat with the laptop.
The EM headers were a easy install and fit real nice.
For those of you 84 owners out there here are the specs of the motor.
Block - 95 4 bolt roller
0 Decked
Quench Distance - 0.039"
Rotating Assy - Eagle stroker kit (Crank, Rods)
Speed Pro Pistons with -12.5 cc D Dished
Moly Rings
Internally balanced
6 3/4 Inch harmonic balancer from Summit
Scat flexplate for late model block
Heads are TrickFlow 195cc intake runners with 64cc chambers Compression ratio 10.4:1
Cam - Compcams CS XR269HR-12 (pn 08-502-8)
Duration @ 0.05 218/228 LSA 112
Lift with 1.5 Rockers - .495/.503
Lift with 1.6 Rockers - .528/.536 (I did this)
Summit Roller Lifters
Roller Rockers 1.6 ratio (from ProComp in Australia)
XRam with 2" TBs and 90 lb Injectors
Headers - 1 3/4" Tubes, Ceramic Coated inside and out from Exotic Muscle (www.exoticmuscle.com)
I did take her out for a quick jaunt around the block and lets just say she is quite "snappy". I still have a bunch of tuning to do but now I can at least sit in the drivers seat with the laptop.
The EM headers were a easy install and fit real nice.
For those of you 84 owners out there here are the specs of the motor.
Block - 95 4 bolt roller
0 Decked
Quench Distance - 0.039"
Rotating Assy - Eagle stroker kit (Crank, Rods)
Speed Pro Pistons with -12.5 cc D Dished
Moly Rings
Internally balanced
6 3/4 Inch harmonic balancer from Summit
Scat flexplate for late model block
Heads are TrickFlow 195cc intake runners with 64cc chambers Compression ratio 10.4:1
Cam - Compcams CS XR269HR-12 (pn 08-502-8)
Duration @ 0.05 218/228 LSA 112
Lift with 1.5 Rockers - .495/.503
Lift with 1.6 Rockers - .528/.536 (I did this)
Summit Roller Lifters
Roller Rockers 1.6 ratio (from ProComp in Australia)
XRam with 2" TBs and 90 lb Injectors
Headers - 1 3/4" Tubes, Ceramic Coated inside and out from Exotic Muscle (www.exoticmuscle.com)
Thread Starter
Pro
Joined: Dec 2002
Posts: 603
Likes: 0
From: 84 383 XFire Chandler, AZ
Thanks - it sure does sound good uncorked. I like the chugida, chugida, chugida at idle....... I am going to get the TBs balanced and work on the idle before I take it to have the exhaust finished. Tons of clean up to do but that is expected. The main thing is She's alive, alive I tell you! 
I just may need to go around the block a time or two more while my neighbors are at work.
I just may need to go around the block a time or two more while my neighbors are at work.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Those are headers? They look like glorified stock manifolds, from above. What is the fitting in the #3 header tube, near the head for? I see that you have the above throttle plate vacuum ports capped off. Are they still functional with the 2" TBs? Mine aren't.
RACE ON!!!
RACE ON!!!
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Thread Starter
Pro
Joined: Dec 2002
Posts: 603
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From: 84 383 XFire Chandler, AZ
Those are the air tubes - they are in one cylinder on each side. The cap[ed ports are for balancing with the manometer. Yes they function but are capped until balancing is being performed.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by elkabong
CFI - Sorry I miss read what you were saying. I just capped them off to start the motor. I need to shorten and flare the tube that comes off the header for a better fit.
On the AIR tube. I haven't seen an AIR system that didn't use 8 tubes, before.So your TB balance tubes are still functional?
RACE ON!!!
Thread Starter
Pro
Joined: Dec 2002
Posts: 603
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From: 84 383 XFire Chandler, AZ
I have not either. As long as I can make it past emissions I am happy.
The balancing tubes are still functional but touchy. My yardstick manometer does the trick. I have a unisync and I will be making a can with the unisync on top to help with balancing.
Here is the prototype unisync balancer.
The balancing tubes are still functional but touchy. My yardstick manometer does the trick. I have a unisync and I will be making a can with the unisync on top to help with balancing.
Here is the prototype unisync balancer.
Last edited by elkabong; Apr 26, 2005 at 07:39 PM.
Thread Starter
Pro
Joined: Dec 2002
Posts: 603
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From: 84 383 XFire Chandler, AZ
This time around I was able to set the rear TB to 6 in of water but not the front. So I used a feeler guage on the rear and set the front with the feeler guage and then set the idle. Worked out quite well.