Weight diffrence between Warhawk and LSX?? 
Weight diffrence between Warhawk and LSX??
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133lbs for the warhawk sounds more accurate after lugging one around the shop vs. a regular LS1 (85lbs with caps) It definitely has a good bit extra beef over the GM castings.
FWIW, the LSX weighs ~250lbs with the standard 3.990" bore, 225lbs sounds about right for an LSX after a visit with the boring bar.
FWIW, the LSX weighs ~250lbs with the standard 3.990" bore, 225lbs sounds about right for an LSX after a visit with the boring bar.
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From: Maple Grove, MN
The weight of the LSX block is from the incredibly dense iron thats used to make the block. I read in Hot Rod a while ago that the tensile strength of the iron used to make the block is on the verge of being unmachineable.
"GM chose an extra-tough 280 kPa tensile strength block material (stock iron castings are 220-240, anything above 280 makes machining difficult), which not only helps rigidity but will also aid in bore durability. Features include 1045 billet steel 6-bolt main caps, two extra head bolts per cylinder (now six per hole), much thicker Siamesed cylinder walls and other beefy areas throughout to allow maximum head clamping integrity as well as distortion and twist resistance."
http://www.highperformancepontiac.co...ock/index.html
Look at me...citing sources, kinda cool?
"GM chose an extra-tough 280 kPa tensile strength block material (stock iron castings are 220-240, anything above 280 makes machining difficult), which not only helps rigidity but will also aid in bore durability. Features include 1045 billet steel 6-bolt main caps, two extra head bolts per cylinder (now six per hole), much thicker Siamesed cylinder walls and other beefy areas throughout to allow maximum head clamping integrity as well as distortion and twist resistance."
http://www.highperformancepontiac.co...ock/index.html
Look at me...citing sources, kinda cool?
