nlpy8b

Interested in seeing what you could do for couple shortblocks. Applications can be seen below in my sig.

I'm considering two iron 408s or possible one 408 and one 415.

Both will be streetcar, 91 pumpgas, low boost (less than 12psi), and possibly both meth inj.

I think I'd like to be in the 10.0-10.5cr range.

Please PM or I will call soon. Thanks.

214Chevelle

Just called these guys and spoke to a Brendan. He said all they sell are 408's and 415's. Nothing larger as in 427 or 440, 454, etc. I asked is there a particular reason why and he said that's what they typically get calls for. I find that odd. Even though the demand may be for 408's majority of the time, I thought you called yourself "HIGH PERFPRMANCE ENGINE BUILDERS"? Building typically one type of motor is like going to a shoe store and them saying all we sale are size 9's or going to a car dealer and them saying all we sale are V6's. Lastly, I always thought a good engine builder could build you anything. So, if they build so-called "high performance 408's," you mean to tell me your certified, trained builder cannot build a 427 which are the same principles as a 408 accept with a larger bore? I give ATK one thing...I appreciate their honesty and them not practicing on building me a 427 on my expense, knowing they cannot build one. Sorry, but I don't recall LME, MAST, Texas-Speed, Kurt Urban or other builders saying they are limited to one size engine.....just a word to the wise ATK you may want to expand your line. There are more customers in the sea of the vast size of engines in the LS family.

nlpy8b

Wanted to post up some feedback for these guys:

My 408 ATK shortblock has been installed with stock LS3 heads and been tuned and ran for approx. 500miles now. Overall I'm satisfied with the motor and believe the customer service has been great.

The motor is making less power that the stock LS3. I was hoping that the increase in cubic inches would make up for the drop in compression from 10.7 to 10.3. Unfortunately it came up a bit short.

As far as price goes, I believe I got the best deal when compared to other suppliers shortblocks. I am satisfied with the purchase and even considering going back for the 415ci LS3 version for the 1970 GTO conversion listed below in my signature.

jrpimp00

iTrader: (17)

Just to update, my motor is still running good. I had knee replacement and decided to put a th400 in it, im waiting on a converter now but will have some track numbers next month at Camaros for Heroes in NC

TrikeMike

iTrader: (7)

What a **** tease I was hoping they were having a sale on shortblocks lol

carport mechanic

could it be possible to purchase the na short block and have it shipped to new Zealand ?

ATK Engines

iTrader: (1)

We can do that, but we are out of LQ4 blocks. Cores are the toughest to get, would have to be based off a new Gen 4 LQ9 block or something else....