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Sealed Power Z4092M10 - Speed-Pro Competition Series Main Bearings

Sealed Power Z4092M10 - Speed-Pro Competition Series Main Bearings large image

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  • Main Bearings, .010 in. Undersize, Tri Metal, Dodge, Plymouth, 170, 198, 225, L6, Set of 4
  • Additional Info
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BrandSealed Power
Manufacturer's Part NumberZ4092M10
Part TypeMain Bearings
Product LineSpeed-Pro Competition Series Main Bearings
Summit Racing Part NumberFEM-4092M10
 
Bearing UsagePerformance
Grooved BearingYes
Groove LocationUpper
Groove Style1/2
Bearing MaterialTri metal copper-lead alloy
QuantitySold as a set of 4.
 

If you're building a serious competition engine, then you'll definitely want to check out Speed-Pro Competition Series main bearings. They were developed in NASCAR and Pro Stock competition, so you know they're tough. They're built on premium 1020AK steel backings and overlaid with Speed-Pro's super-duty H-14 alloy. That's covered with a nickel barrier, followed by a thin lead-tin-copper overplate. However, unlike other performance bearings, there is no flash tin layer on top of that. Speed-Pro's engineers have determined that such a layer can actually move around under high loads--sometimes with undesirable consequences. These bearings have 3/4 oil grooves for enhanced lubrication, while maintaining a maximum bearing surface area. They also feature Speed-Pro's exclusive contoured-flange thrust bearing technology for higher thrust-loading capacity.

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