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Main Side Bolt Kit Ford Modular Boss 5.0L
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ARPPART NUMBER: 070-156-5203

Main Side Bolt Kit Ford Modular Boss 5.0L

$5999
ShippingShips on 09/16/2026
Lowest PriceLowest Price Guarantee

Ford Modular
    Main Side Bolt Kit
  • Ford Modular Boss 5.0L

    Ford Modular Boss 5.0L main side bolt kit

    Eliminates Main Cap Walk and Fretting

    ARP's Main Studs offer a few advantages over both OEM and main bolts. Studs are recommended over bolts due to the ability to obtain more accurate torque readings because studs don’t “twist” into the block. Also, elimination of main cap walk and fretting, as well as precise alignment of caps. These studs are manufactured from 8740 chrome moly steel, heat-treated to 190,000 psi tensile strength and precision J-form threads rolled after heat-treated to create a fastener that has threads 2000% stronger than others.

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    For some applications, there are provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. All kits come complete with hardened parallel-ground washers and high quality nuts. Also available in Main Bolts.

Part TypeCrankshaft Main Bearing Cap Bolt
Product LineARP Main Studs
BrandARP
Package Height1.0
Package Width5.75
Package Length9.5
Weight0.07 PG
Part CategoryPerformance Parts
Washers IncludedYes
Nuts IncludedNo
Works With Windage TrayNo
Fastener Nut StyleStandard 12-point
Fastener Yield Strength (Psi)200,000
QuantitySold as a kit
Fastener StyleBolt
Part FitmentSemi Universal
Main Bolt Style4-bolt
Vendor Part Number156-5203
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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