The 6.0 LTR iron block weighs approximately 100LBS more than the aluminum lS1 block. The iron block can handle way more abuse the aluminum block can. Alot of the LS1 nitrous guys run the iron block for strength.
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Originally Posted by jannes_z-28
The major difference with the truckmotor is it as a ironblock, otherwise they are the same. If you would go for really big boosted power you really need the iron block. Of course it is heavier than thoe others from aluminum but not heavier than a CSB. One benefit with the truckmotors is the price.
The obvious choice would be to go with the LSx
Jan
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