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Like the main bearing caps, the soft aluminum block requires specialhead fasteners. The original reduced shank 7/16x14 bolts were lost, soAl Nichols and Mike Rose of ARP tooled up a new head-stud kit just forus and any other aluminum-block customers who might need a set. Theseheat-treated 7/16 studs can be threaded deeper into the block than boltsfor increased thread engagement, and they offer superior clamping force.Using antiseize compound, they torque to 60 lb-ft (iron blocks go to 75lb-ft). Aluminum blocks take a special head gasket that's only availableas N.O.S. and must be retorqued after initial startup. Remember toinstall the lifters before the head on all iron blocks. The open deck ofaluminum blocks allows for later lifter installation... View Related Article
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