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Crankshaft Options



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SIR-5850BB-1 #1

Single 5.850" 5140 Steel I-Beam, 3/8" Arp 8740 Bolts

Forged 5140 Steel I-Beam Connecting Rods Are An Upgrade From O.e. Rods And Feature A shot-peened Surface. Sizing Is...
"SIR" FORGED 5140 STEEL I-BEAM RODS  |  Part# SIR-5850BB-1   More Details...

$73.99


SIR-5850BB20-1 #1

Single 5.850" 5140 Steel I-Beam, 3/8" Arp 2000 Bolts

Forged 5140 Steel I-Beam Connecting Rods Are An Upgrade From O.e. Rods And Feature A shot-peened Surface. Sizing Is...
"SIR" FORGED 5140 STEEL I-BEAM RODS  |  Part# SIR-5850BB20-1   More Details...

$80.99