This LQ9 came from a Cadillac Escalade. There is an LQ4 block which was built with dished pistons for FI. The LQ9 I have is the same style block TSP built my 408 from. This one is stock dimensioned though meaning LS2 rotating assemblies will work.
I had initially intended to build this for FI or go NA with it and spray it. I was considering using forged internals for the 364 CI engine. However, I went with a stroker engine built by TSP that also uses the same block. That is the 408 I have. We pushed this to 750/806 which is all the 2.3 liter supercharger could handle. At present we have a 4.0 Whipple sitting on it. haven't got the plumbing hooked up yet but we are hoping to go beyond 800/800. I am not a real expert but I chose the iron block for the FI because I was concerned about the strength of the block itself undergoing the extreme pressures and twisting. I had some signs of that type damage to my LS1 that was putting down 465 NA. My guess is that the Iron block weighs about 80 lbs more than the aluminum counterpart. There has been quite a few discussions concerning the iron vs aluminum blocks in the Forced Induction section.
talk...to me about LQ9 and my ls2 assembly..perfect fit?
I bought the first 112High Helix Magnuson blower ported for a GTO. Blew at 17k miles. );
Now I have naturally aspirated QSM 04 A4 243 Heads, Borla Duals, ARP Head Bolts,
05 hood, 05 interior, new 05 differential, 05 axles, Nitto 555r's, rolled rear fenders...
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