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3400-3800SC Swap Complete. Waiting for tune.
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wanderson75
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PostPosted: Wed Oct 28, 2009 8:39 pm    Post subject:  3400-3800SC Swap Complete. Waiting for tune. Reply with quote

Yep. I'm working on it.

This is not a stock L67 replacement that I'm putting in. You probably could pull off that swap for a little under $2000. But I want a performer.

Purpose

To build a high performance 3800 Supercharged engine and swap it into a 3.4 Liter Base Impala. And hopefully not break the bank. And prove I'm not crazy and this can be done.

The Build

3.8 Liter Supercharged Engine with an L26 block and L67 heads.
1.9 Ratio Rockers
LS6 Valve Springs
GenV Blower
N* Throttlebody
LQ4 MAF
Heads Ported and Polished
Braided Steel Fuel Lines with AN Fittings
L32 Fuel Rails refitted for AN lines and a return
Braided Steel Trans and Power Steering Lines
Possibly an intercooler down the line, but I want to verify the build works first.
TEP 3.29HD Trans Rebuild

Here's where I'm at so far:

Engine

I grabbed a 1000 mile L26 engine out of the yard from a 2007 Buick Lucerne. Excellent condition. Water pump was seized from coolant being left inside it for a good while, but all of the water jackets internally look clear.

Used dhat's truck to take the motor over to DLS's house. The guy that put it in at the yard used a forklift to put it in. Since we didn't have enough clearance to pull it out with a cherry picker as is, we had to pull the intake off of it while it was in the truck.







On the stand:




1000 miles of crap gas...


You can still see the honing marks from the factory build. Very fresh engine.


Anyone looking for a set of 1000 mile L26 Heads and PRs? PM me.


Oil pan was gashed when they set it on the ground to get it with the forklift...a-holes. But all the metal was accounted for and I have a replacement pan.



Engine Cost: $580

Got a Northstar Throttlebody instead of an L36/67 TB. I'm having a new inlet fabbed to get rid of that plastic thing with the big gaping hole for a MAF.





TB Cost: $30

Purchase a ZZP Ported Rear Manifold and Plog used from someone on Clubgp. No cracks and looks barely used. They be getting recoated before installation. I'll be using the stock crossover since there's really no benefit to getting a ZZP one.





Exhaust Manifold Cost: $160 Shipped

Bought a PCM from Sabre and Coolant Elbows from ZSPOT (never can have enough of those). Thanks to both of you guys for that.

Cost: About $45 shipped.

Now for the goodies:

Yep...you're not hallucinating. Yella Terra rockers. 1.9 ratio. And LS6 Medium Load Valve Springs.





Cost: $399 for the rockers. $38 for the springs.

Trans

Found an HD trans to send to TEP Dave for a rebuild. Supposedly has less than 30,000 miles. (Couldn't verify since I wasn't there when it was pulled). But the trans fluid in the TC was VERY clean. So I'm hopeful.



Trans Cost: $245 shipped

I bought Todd from Intense's old Bonnie SSEI heads off of him. No cracks and everything looks good. Sending it to the machine shop next week for inspection, then a port, polish and hot tank. I'll take some pics later.

Cradle is bought. Will take pics before I send it out for sandblasting.

Cost $45

I'm getting my Supercharger Friday. GenV Blower, plus a ported LIM and L32 fuel rails which will be modded for AN lines.

***UPDATE*** Oct. 30th

Picked up the Supercharger today for $350 in Flint. Bearings are good. Needs some cleanup though. I'll post the cleanup soon.

Pardon the quality, it's my cell phone camera.


Here's a quick pic of the heads I got from Todd last week, I'll take more before I send them to the shop.



***UPDATE*** 11/20/2009

Got my new TB inlet back from Evil Tom. Did a beautiful job on it. Deleted the MAF port and gave me a three inch inlet, which is just a bit smaller than the 78mm inlets that are advertised all over the place. I'm looking into seeing if I need to port the body or not.

Anywho...pics:













Way better than this ugly thing, eh?



Head Status

Heads are in the shop and have been hot tanked. Found a very minute crack in between the valve guides on one of the cylinders, but the machinist thinks that can be polished out. I'm also having all of the valve guides replaced. They don't all need it, but I figure if a couple do, then just get them all done. Plus, with the stock guides coming out, I can have the valve guide bosses in the chamber ground down for some additional porting.

After measuring out the valves on the L26 heads, I decided to go with those on my L67 heads. (1000 mile valves...why not?) So I dropped them off to Gary at Leitch performance so he can grind the seats.

Picking up the heads tomorrow from Leitch to send over to my buddy Schlodes for port and poliish. Got some goodies in from Intense today. More on the way soon.



Heads are in from Leitch Performance. My PnP guy will be picking them up this week. But thought I'd post up the pics of how they're coming along so far:













Hot tanked, sandblasted, and new valve guides. Do they look like 60,000 mile heads to you guys?Laughing After the PnP, valve seats get ground to take the L26 valves.

Aaaaaaand I put on the Intense sticker.



Update 01/17/2010

Since I have some time to kill while I'm waiting for the heads to get PnP'd, I figured I'd pick up a side project.





Update 02/01/2010

Took some new pics of the heads after the PnP. Tell me what you think:

















Heads are going back to Leitch Performance to get resurfaced, valve seats ground and back cut, and assembled this week. I'll probably have them back week after next.

Adding Schlodes original pics.









In the meantime, I'm waiting for my tax return to come in so I can get the L67 harness and GMPP exhaust (my boss is going to hate me when that shipment comes in. Laughing ). Then I've got to pick up injectors.

Picking up miscellaneous gaskets this week and I'll be doing some more work on the supercharger. Lots and lots to do yet, but we're getting closer!

More updates coming soon!

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Last edited by wanderson75 on Fri Jun 25, 2010 8:24 am; edited 23 times in total
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HotSauce6226
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PostPosted: Wed Oct 28, 2009 8:46 pm    Post subject:   Reply with quote

Good luck cant wait to see

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wanderson75
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PostPosted: Wed Oct 28, 2009 8:51 pm    Post subject:   Reply with quote

HotSauce6226 wrote:
Good luck cant wait to see


Thanks man. Maybe I'll be able to give you a run for your money next Cincy meet eh? Wink

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PostPosted: Wed Oct 28, 2009 8:54 pm    Post subject:   Reply with quote

Very nice bro! Sux that u are giving up on the 3400 but i always like seeing custom builds!

Are those LS6 springs 313lbs compressed? if so they are the same ones i used on my turbo 3400 build - and you got them a TON cheaper than i did! lol

Good luck with the build bro! Keep us posted!
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wanderson75
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PostPosted: Wed Oct 28, 2009 8:56 pm    Post subject:   Reply with quote

Bio wrote:
Very nice bro! Sux that u are giving up on the 3400 but i always like seeing custom builds!

Are those LS6 springs 313lbs compressed? if so they are the same ones i used on my turbo 3400 build - and you got them a TON cheaper than i did! lol

Good luck with the build bro! Keep us posted!


I think the 313s are the comps...I'm not 100% on that. Todd@intense recommended I get these at the least so I don't get valve float or a twisted rocker. Shocked

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PostPosted: Wed Oct 28, 2009 9:01 pm    Post subject:   Reply with quote

OH dont worry sir. I have alot of tricks up my sleeve. Remember, i have another car to drive and the car is parked for winter....Didnt say where its parked... Laughing Or who has it.. Wink

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PostPosted: Wed Oct 28, 2009 9:03 pm    Post subject:   Reply with quote

HotSauce6226 wrote:
OH dont worry sir. I have alot of tricks up my sleeve. Remember, i have another car to drive and the car is parked for winter....Didnt say where its parked... Laughing Or who has it.. Wink


Crazydayz has it and he's painting it green? Laughing

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PostPosted: Wed Oct 28, 2009 9:03 pm    Post subject:   Reply with quote

LOL...I know you got the Indy. I'm curious to see what you're gonna do with it though. Wink

Yeah...getting the marquis ready so I can get this thing garaged for the winter. Fun times. Crying or Very sad

wedebrook wrote:
HotSauce6226 wrote:
OH dont worry sir. I have alot of tricks up my sleeve. Remember, i have another car to drive and the car is parked for winter....Didnt say where its parked... Laughing Or who has it.. Wink


Crazydayz has it and he's painting it green? Laughing


LMAO! The new twins! ROFL

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PostPosted: Wed Oct 28, 2009 9:11 pm    Post subject:   Reply with quote

Close, but ive been talking alot to some Intense guys (Scott) and Milzy..We have alot in store for da Indy. Looks like March should be the time frame ....until then SHH!

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PostPosted: Wed Oct 28, 2009 9:12 pm    Post subject:   Reply with quote

HotSauce6226 wrote:
Close, but ive been talking alot to some Intense guys (Scott) and Milzy..We have alot in store for da Indy. Looks like March should be the time frame ....until then SHH!


Stick with Intense. Milzy is awesome on 3400s. I just don't know about 3800s. Can't wait to see what you bring. Twisted Evil

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PostPosted: Wed Oct 28, 2009 9:37 pm    Post subject:   Reply with quote

Good luck with the project. Look forward to seeing it complete.

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PostPosted: Wed Oct 28, 2009 9:39 pm    Post subject:   Reply with quote

You won't get valve float or twisted rocker, but I have read too many threads on those springs breaking Very Happy
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PostPosted: Wed Oct 28, 2009 10:08 pm    Post subject:   Reply with quote

Sounds like you got a few screaming deals on all your major parts. Very Happy

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PostPosted: Wed Oct 28, 2009 10:09 pm    Post subject:   Reply with quote

snook wrote:
You won't get valve float or twisted rocker, but I have read too many threads on those springs breaking Very Happy


Only if the stock retainers are used.

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PostPosted: Wed Oct 28, 2009 10:11 pm    Post subject:   Reply with quote

snook wrote:
You won't get valve float or twisted rocker, but I have read too many threads on those springs breaking Very Happy


Comp Cams springs break. GM springs should be good. That was why I went with L76 springs on the Impala. The reputation around Comp Cams was enough to not touch them.

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