1nastyss

iTrader: (12)

I'm tryin to get a plan going for a new motor setup, I talked to bryan @ lme ( which is an awesome guy to work with ) about an NA motor. I was originally looking @ goin with an ls7 440 but I like the stronger block and thicker cylinder walls that the lsx offers also the better oiling setup. Looking @ the lsx 451 with trickflow 245 cathedral heads n custom cam and a fast 102 .... what do u guys think?

Stage7

iTrader: (1)

What are your goals and expectations with it? Who is spec'ing and setting up the top end?

LS6427

iTrader: (2)

If you're staying NA you have no use for the iron LSX block, and its heavier and will offer nothing by way of more power potential doing an NA 440-441. Machining is gonna jack the cost way up too.

Do a 441ci (4.125 x 4.125) resleeved LS1/6. The older LS1 block (1997-1998) is arguably the strongest of them all, including stronger than the LS7 block. You can buy those suckers cheap too, then resleeve it by RED. That block will last you forever. My resleeved LS6 block is 9 years old and perfect still.

.

MPM IV

iTrader: (3)

Stick with the original plan. If you think you need a stronger block (you don't) look at the ERL super deck.

Orange Juice

iTrader: (3)

What are your plans for the motor, are you going to spray it? Plan on doing alot of trips to the track? So far I have had no issues with the ls7 block. If I were to change anything I think I would have spent the money to upgrade the crank to cut down on the rotating mass. You will need the 102 intake and either a 100mm maf or a SD tune.

Brian Tooley Racing

iTrader: (13)

My topend is for sale if you're interested, custom TFS 245's, ported Fast 102 and EPS custom cam. I'll PM you the details.

1nastyss

iTrader: (12)

I plan on staying NA, if anything i may spray off the line , but im running 4.56 gears , and i dont want to have to go up to a damn 30 in + tire...I like the idea of staying alum. for the weight saving, but ive been super impressed with the lsx blocks , seems like the best for the money....BTW pm sent to ya Brian

Philip@HPE

iTrader: (3)

Another option for blocks is the new RHS block.

1nastyss

iTrader: (12)

Yeah , that would be ideal for what i want as far as strength and light weight but its alittle out of my price range i think

03supercobra

iTrader: (38)

I had a problem with the 4.125" stroke setup a while back, If it were my setup - 4.185" bore and 4" stroke on the standard deck-height iron blocks.

96lt4c4

iTrader: (5)

Bardstown

supermouse4

Gm High Tech Performance magazine had a LSX 451ci NA build that made almost 700 hp with different manifolds being tested. It was a set of articles, should be on their web site.

ruquik

iTrader: (1)

lme is building me a n/a rhs 502 right now, should be on the dyno next week i hope.

1nastyss

iTrader: (12)

That was LME, just wish they had the chance to test the Fast 102 with the others, That setup on Brian Tooley's motor seemed healthy

LS6427

iTrader: (2)

Especially for what you want and your power goal...the RHS block is a complete waste of money. Any of the LSx resleeved blocks will handle what you want for years and years and years....if you have the right person sleeve it.

.

LPE 403

iTrader: (6)

Already?

The novelty of 700hp gone that quick?!?

Brent

Zac_Speed

iTrader: (4)

More info?

Brian Tooley Racing

iTrader: (13)

It's not that, I really like my engine/power curve/streetability.

My new goal is to make 750 with the new TFS square port heads on E85

LT1Formula007

iTrader: (66)

Brian, how much are you asking for that top end?? And are you selling it all together or are you willing to split it up? PM me please! Thank You!

-James

Brian Tooley Racing

iTrader: (13)

Sorry, it's gone.