World Products Warhawk LS7X Blocks are made of rugged 357-T6 aircraft aluminum alloy. Equipped with both late LS1 and standard SB-Chevy motor mounts. Priority main oiling feeds crankshaft first and top-end last. Accommodates dry sump systems - scavenge pick-up at rear of block. Billet steel C5R style main cap with 200,000 psi ARP studs. Choice of 9.240" or 9.800" deck heights. Cam bores can be machined up to 60mm. Provisions for two extra head studs per cylinder. Stud holes counter bored to eliminate distortion. Available in 4.000" or 4.125" bore with .100" dry sleeves and .300" aluminum support. Crankcase accepts 4.250" stroke crank. Accommodates all standard GM LS-series components

Race Prepped Blocks:
Let the experienced technicians at World do the ground work with our Race-Prepped Blocks. Blocks are precision plate-honed, lifter bores honed, block is thoroughly washed, cam bearings and freeze plugs installed.You'll find this to be a HUGE time saver and a very cost-effective investment.

Click to Enlarge	Designed to Handle Big Boost! Not only is the Warhawk Block reinforces in all critical areas, but there are provisions for two extra studs per cylinder head. This substantially increases the available clamping force, allowing engine builders to employ high combustion pressure with complete confidence.
Click to Enlarge	Superior Bottom-End Strength The Warhawk takes a cue from the GM C5R racing block in terms of billet steel main cap design, then ups the ante though use of ARP'S highly acclaimed 200,000 psi main studs
Click to Enlarge	454ci with 100% Safety While 6 liter LS2 and 7 liter LS7 engines are cool, you should know that Worlds Warhawk Block can accommodate a 4.125" bore (with .100" thick dry sleeves backed by .300+ aluminum) and a 4.250" stroke crank without any modifications.
Click to Enlarge	Dry Sump Systems Not Required LS7-equipped Corvettes come with a dry sump because early testing was said to have shown excessive main and rod bearing wear. GM's cure was to use an expensive dry sump oil system. World's solution was to design the Warhawk with priority main oiling. Lubricant goes from the bearings, then up top.
Click to Enlarge	Easily Installed in 1955-Up Chevy In addition to equipping the Warhawk Block with factory style LS1/LS7 motor mounts, World added a set of standard SB-Chevy motor mounts. This allows the Warhawk to be easily installed in a myriad Chevys, from Tri-5s to F-bodies.
Click to Enlarge	Improved Piston Ring Sealing The Warhawk has .100" thick Ductile iron sleeves and .300"+ block to prevent ballooning of the sleeve when pressure is applied.