427 is on it's way, what now

[AlaskaGT]

Ok guys and gals I just ordered my 427 . We are estimating650 to 700 crank hp my question is what do I have to do to make this car bullet proof

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[Zodiac]

I'm sure you would need to build your transmission if you haven't already. Can't see what mods you have on tapatalk. Either way looking forward to your build. Would love to have a g8 with a 427.


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[Zodiac]

Stupid double post.

[Matt G8 dude]

I would love to get a 427 in mine. Would the headers have to be changed? Like if you had kooks or ARH headers for the 6.0 or 6.2, would they bolt up to the 427?

Good luck on the build!

[gr8lover]

Headers and everything all bolts up the same..... thats the beauty of this engine....

[Matt G8 dude]

Awsome! Now I can buy an exhaust and still use it if I ever swap engines.

[-Ray-]

Heads and intake with the 427?

[AlaskaGT]

We are going to port my l92 heads and have plans for a fast 102

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[STL_G8GT]

4l80 swap?

[AlaskaGT]

Lol before my 6.0 went out I just replaced my 6l80 so. Not until my new one goes out lol than I'll be looking for a m6

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[-Ray-]

We are going to port my l92 heads and have plans for a fast 102

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You really need the heads and intake to take advantage of the LS7. That's why I went with the Livernois LS3 stroker.

[AlaskaGT]

I went with a ls3 427 from Thompson motorsports and I was not prepared for a engine swap when my 6.0 went out so I am trying to just get the g8 back on the road as cheaply as possible while still getting a 427 lol


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[AlaskaGT]

Sorry I should have been more clear about how I was getting to 427 cilol

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[Crazy Paul]

Ok guys and gals I just ordered my 427 . We are estimating650 to 700 crank hp my question is what do I have to do to make this car bullet proof
Weren't you the guy that can only get goatspiss fuel at one of your locations?
Sure hope you told the engine supplier about it.
It will need good quality fuel and plenty of it if you expect the above numbers for any longer than the first 13 minutes of it's lifespan.

[AlaskaGT]

I was I moved to Colorado so I get a lot better fuel.

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[STL_G8GT]

I was I moved to Colorado so I get a lot better fuel.

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Bahaha I can't find anything more than 91...= sucks! In Jeff city, mo, I could get Phillips 66 94!!

[Crazy Paul]

Bahaha I can't find anything more than 91...= sucks!
7500ft above sea level and shit fuel. Good luck.

[STL_G8GT]

7500ft above sea level and shit fuel. Good luck.

At least I have awesome HRT posters in my garage! Thanks CP!

[-Ray-]

I went with a ls3 427 from Thompson motorsports and I was not prepared for a engine swap when my 6.0 went out so I am trying to just get the g8 back on the road as cheaply as possible while still getting a 427 lol


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I'd really be interested in the bore and stroke numbers. Did they resleeve the block?

[AlaskaGT]

Ray this is the block. http://www.thompsonmotorsports.net/product_info.php?cPath=28_56_57_60&products_id=44&osCsid=76dunhc4mq86tlp16fk307fg05

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[-Ray-]

Going to be a nice motor, but bore and stroke wasn't listed that I could find. Make sure the secondary dip stick tube is blocked off.

[AlaskaGT]

Ok thanks ray

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[AlaskaGT]

Ok ray bore is 4.0650 ans stroke is 4.125 uses the stock sleeve

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[Crazy Paul]

Ok ray bore is 4.0650 ans stroke is 4.125 uses the stock sleeve
= 428.3
You got an extra inch.
:)

[AlaskaGT]

Lol I had some bad service so my numbers might have been off lol but I hope not lol

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[-Ray-]

Ok ray bore is 4.0650 ans stroke is 4.125 uses the stock sleeve

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Piston specs? That's a long way to pull the piston out of the sleeve.

[edmanet]

= 428.3
You got an extra inch.
:)

Who couldn't use an extra inch?!?
LMAO

[AlaskaGT]

Ray piston specs will have to wait shop is closed till tomorrow

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[wreckwriter]

I would recommend trans, axles, and diff. With a good trans tune the stock trans will live for a while, particularly at the lower end of your power estimate but unless your trans tuner is a god it'll start slipping before too long.

[AlaskaGT]

unless your trans tuner is a god it'll start slipping before too long.[/QUOTE]

Like pat g lol ?

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[AlaskaGT]

Ray we are using diamond . Forged pistons with a negative 15 CC dish with the l92 head relief

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[wreckwriter]

unless your trans tuner is a god it'll start slipping before too long.

Like pat g lol ?

Sent from my HTCONE using Tapatalk 2[/QUOTE]

Patrick has a great reputation. I expect he can tune a trans pretty damn well. He your guy?

[AlaskaGT]

Not yet but will try to let him work his magic on it

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[-Ray-]

You're getting a great engine, that's for sure. Since it's a short block, you can get it on an engine stand and see the piston skirt as it pulls out of the sleeve.
I haven't found too many 4.125" strokes on an LS3 block. i'd prefer the larger bore with a re-sleeve. it was more money than I wanted to spend.
care to divulge the price of the short block?

[AlaskaGT]

5002 with shipping and tax

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[-Ray-]

Wow! That's awesome.
My LS3 was $6350 if I remember correctly.

[AlaskaGT]

Lol I know it would have been 4800 w/o shipping

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[AlaskaGT]

Update: my short block just got to my shop now just playing the waiting game ...


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[-Ray-]

Pics or it didn't happen. :)

[AlaskaGT]

http://img.tapatalk.com/d/14/03/12/4y4yhyhy.jpg

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[AlaskaGT]

http://img.tapatalk.com/d/14/03/12/2ypa9atu.jpg

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[travis gore]

http://img.tapatalk.com/d/14/03/12/2ypa9atu.jpg

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Nice! :thumbsup:

[AlaskaGT]

http://img.tapatalk.com/d/14/03/23/u8ygujy8.jpg got her painted

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[BuildItYourSelf]

Nice!!!
Good call with the m6.
You happen to have two of the swapped cars in town.
Also the only g8 twin turbo kit sold in the states is made here. :)
And there is any fuel you want ready and available in the springs.
I'd say your set.
I'd love to see the car when its back in town.

[AlaskaGT]

I'll definitely be showing it off lol and it still has a 6l80e but I think it'll be alright for a while and it. Will have firehawk inspired paint

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[TailG8er]

And I jizzed in my pants!

[AlaskaGT]

Cam is ordered 229/236 LS3 Camshaft: 229/236, .624'/.615', 114 LSA,3-BOLT CAM CORE

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[Silver Bullet]

I am not a cam guru but isn't that cam a little small to take advantage of 427 cubes?

[AlaskaGT]

Still stuck with ls3 heads and that cam is designed to work with them but maybe Ray or Rick could shed some light on it

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[AlaskaGT]

G8Ray do u know your cam specs

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[-Ray-]

235/247 duration. 617/624 lift on a 114 +2. ICL is 109

[rocket69GTP]

Wouldn't that be a 114 +5?

[-Ray-]

Wouldn't that be a 114 +5?

You may know more than me, but I thought LSA and ICL are two different measurements.

[AlaskaGT]

Tanks Ray

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[AlaskaGT]

Hey guys, just got the motor in should have pics on Monday and a running vid around the end of the week

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[Erbby325]

Wheres the picssssss


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[chrisG]

Sub'd

[AlaskaGT]

Update got down to the shop and had some fitment issues on our way to get parts it starts to rain ..... I forgot say we are in my friends 1300 hp vette . So it starts to rain we are on The highway in Vegas that floods easily be cause they don't know how to build roads out there. We slow down to 50 than 40, finally only a mile to go till our exit and bam car hits what felt like a lake and we go spinning into the wall. Thankfully the whole front end of the car was not damaged in the crash so it didn't mess up any of the expensive goodies under the hood. When we finally got home my truck was towed ... Long story short my g8 will be getting pushed to the back burner for a bit will let every one know any more updates

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[BuildItYourSelf]

Damn that blows.
Isn't Vegas in the bottom of a bowl? And its the lowest point around?
I seen a show that talked about all the huge under ground drain tunnels and if it get to high they have to pump it out down some crazy long pipe to get it lower then the city?
Can't remember. But I know you cant make good drainage is a place like that.

[AlaskaGT]

yeah basically it was only raining for a few minutes and the street flooded lol we were only a mile from our exit ...I still wanted to work on my car but my friend was in no mental shape to do that

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[wastedrubber]

Any updates on your build?

[AlaskaGT]

http://bmMO8X.frtn.us/ its in at last

[AlaskaGT]

it's running now just to tune

[jayj]

AlaskaGT: Clicked on the link and just got a "Not Found" message. I've been following this thread because it's down to doing a transplant in the '09 G-8 or springing for a '15 Chevy SS... Some feedback on the problems encountered, your happiness (or not) with the results would be greatly appreciated...

[wastedrubber]

Link didn't work for me either

[AlaskaGT]

over all I am ecstatic with how the build came out it is at a shop in las Vegas so I am limited on the info that I received on how it is currently running I have a few idle vids but don't know how to up load to the site I will say that if you are planning to do a swap just make sure u are ready to spend the cash... that's the reason I haven't drove the car for two years

[-Ray-]

That's unless you do your own swap. Look forward to you getting her back.

[AlaskaGT]

Got her back guys runs grrrr8 but now the starter went out so have to replace that before vids

[twistedg8]

Nice fhread , but did it have to end without a vid or pics with engine in :bang:

[Darkmanx]

vids?