The 10 long bolts are M8-1.25 and the 3 smaller ones are 1/4 - 20.
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ARP 627-1250 Black Oxide 8740 Chromoly Bolts 1/2"-13 x 1.25 Hex 12-Point 5-Pack
ARP 134-6423 Black For SB Chevy 350 wave-loc hi-perf rod bolts
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Mazda RX-8 Engine Water Pump Pulley Bolts Fasteners
