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Main Cap Studs for Your Engine Build
Main cap studs hold the main bearing caps to the engine block, which keeps the crankshaft clamped in place. Many builders replace factory bolts with studs because a stud threads into the block and stays put while the nut is tightened. That gives a more consistent clamping load and puts less wear on the block threads. Studs are a common upgrade on engines that make more power, spin higher or get taken apart often.
We currently have 1 main cap stud in stock, from ARP. It is the ARP Ford 4.6L V8 inner main broached stud, listed for various Ford 4.6L V8 engines. It is sold as a single stud, so work out how many your block needs before you order.
Confirm the stud matches your exact engine and the main cap position, inner or outer.
Follow the stud maker's torque and lubricant instructions.
Clean and inspect the block threads before fitting new hardware.
Ask your machinist whether the main bores should be checked after a fastener change, since clamping load can affect bore shape.
Main cap studs hold the main bearing caps to the engine block, which keeps the crankshaft clamped in place. Many builders replace factory bolts with studs because a stud threads into the block and stays put while the nut is tightened. That gives a more consistent clamping load and puts less wear on the block threads. Studs are a common upgrade on engines that make more power, spin higher or get taken apart often.
We currently have 1 main cap stud in stock, from ARP. It is the ARP Ford 4.6L V8 inner main broached stud, listed for various Ford 4.6L V8 engines. It is sold as a single stud, so work out how many your block needs before you order.
Confirm the stud matches your exact engine and the main cap position, inner or outer.
Follow the stud maker's torque and lubricant instructions.
Clean and inspect the block threads before fitting new hardware.
Ask your machinist whether the main bores should be checked after a fastener change, since clamping load can affect bore shape.
