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Crankshaft Options



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SIR-6135B-1 #1

Single 6.135" 5140 Steel I-Beam, 7/16" 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-6135B-1   More Details...

$83.99


SIR-6135P-1 #1

Single 6.135" 5140 Steel I-Beam, 7/16" Arp 8740 Bolts, For press-fit Pins

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-6135P-1   More Details...

$80.99