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iTrader: (1)

I have a LQ9 with a Calies crank , lunati pro billet rods and diamond nitrous pistons .

If i buy an GMPP's LSx block will my crank and rods work in that new 6 bolt head block ?

Hennytime

iTrader: (33)

i believe you'll need new pistons as your bore is a little too small, yet if you have the 4" crank (iron 408 right?) then you can displace 427 CI with that crank.

and i still want my ride! when ya coming out to the ucf meets?

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iTrader: (1)

I so wana swap out my block for a new 6 bolt block and heads .

If i can use the crank and rods , im gona start buying in parts monday ,, hehe

What is the differece between the LSx and the LQ9 .

Sensors the same ?

Oil pump , balancer , cam , intake ?

Will all those parts swap over to the LSx block ?

I tried to find that meet one night Henny and got lost as hell driving around the campus ,, lol

Im gona need explicite directions ,, hehe

Hennytime

iTrader: (33)

i believe the accesories all swap over, i have no first hand experience in it though. theres a couple people building them, so id get their opinions on the matter.

what heads would you be going with? the only ones ive seen so far with the 6 bolt heads are the etp's (3100-ouch) and the warhawk 2200+valvesprings, not so bad. IMO, id do ls7x heads and the ls7 intake kit from gm (kit is 600 bucks and you get tb, intake, fuel rail and 40 or 42lb injectors) and it flows like mad.

as far as the meet, turn onto mccollouch road and take a right into the school entrance(i think its called orion blv). you'll pass the stadium and that road will dead end into the d parking garage. top level if dry, 3r level if wet. im 99% there. (gf's bd last wed night)

427

iTrader: (3)

The LSX block will need all the changes a LS2 needs, different front cover with cam sensor and upper cam gear. You will need to re locate your knock sensors to the side of the block. You could re-use your pistons if you wanted, the blocks bore comes just under 4 inch.


Kurt

Hennytime

iTrader: (33)

ya i couldnt find the stock bore, and it was killing me, i just found the stock bore is a 3.990, so your 408 pistons (if they are 4.0) could be reused. you could spray a **** ton of nitrous on it, but i still go with a completely new shortblock and display 427 or 454ci, seeing the power those bigger cubes are pumping out.

i was alsp under the impression the lsx all came with front covers and cam retainer plates like tsp sells

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iTrader: (1)

I would go ahead and bore it to 454 and spray the hell out of it .

If it needs all LS2 stuff then i may have to start selling parts off this motor that only has 6k miles on it .

98mysticZ

iTrader: (11)

i need pistons what cc are they

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iTrader: (1)

2cc flat top .

Jeff@TotalPerformanceEng

iTrader: (6)

Pretty much everything will swap over, with the exception of the basic LS1 to LS2 conversion pieces. This is a total of about 250 bucks. The LSx comes with the rear cover. It would really serve no purpose of tearing your 408 apart just to run the LSx, unless your gonna bore/stroke it.
There are more than a few guys running 408's with ALOT of spray. Plus, in all honesty, your gonna spend 5+ grand in extra's just to convert to a 6 bolt setup. Cause the head choice is slim to none. So if your concerned about cash, it is NOT the way to go.

I would say either go ***** out and build a big motor, OR stay the way you are. The 408 will more then handle it.

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iTrader: (1)

I would bore it out to at least 427 if not the 454 .

The question is , if i use my Calies crank and rods from the LQ9/408 , what is the cubic inch going to be with max bore size?

Money is not that big of an issue , i spent around 12k for my setup i have now , i just want to use as many of the high dollar trick parts i have now instead of buying everything new .

I can get 2k for the AFR 225's i have now and put that towards a new set of 6 bolt heads , but will my harland sharps LS1 rocker arms work in the 6 bolt heads.

I guess i need to talk to someone that has built both and knows the difference between the 2 , parts wise .

I need to start a list .

PS: Im already spraying a 300 shot 2 stage now .

Hennytime

iTrader: (33)

max bore is 4.250, an the 454 is a 4.200 x 4.100, so with a 4.0 crank it would be in the 43x area i think (not a math major). if you want the 454 gap insure the 408 and itll find its way over to my house

Jeff@TotalPerformanceEng

iTrader: (6)

You can definately sell of some of your parts. Especially your AFR's.
Yes, you can easily run your 6.125 rods. You can also use your 4" crank, but its NOT gonna give you 454ci (If thats what your hoping for)
Its not so much the B.S. parts that are required, its the ridiculous heads. If it were me, I would build it up without the 6 bolt heads. Then wait the 8 months before GM comes out with their new casting, and get the ones you need. Because unless your gonna be pushing ALOT more power than a 200-300 shot, you wont need them at all.

Oh, and btw...Been there done that. I have an LSx 454 AND a S/C 404 sittin in my garage..