Enginetech BC240J Main Bearing Set for Ford Small Block 255 260 289 302 V8 4.2L 5.0L EnginesCrankshaft Main Bearings Set for Small Block Ford Engines

Intake Centerline: 106

Tapered: No

APPLICABLE THROTTLE BODIES

5/16-18/24 in

Maintains Optimum Pressure w/Precision Thermostats

Forged Mahle pistons (-4cc flat top pistons)

Needle bearings are precision sorted by size to evenly distribute loads

Fuel line adaptor(s) required to connect to OEM fuel line(s)

which results in increased engine speed before valve float

increased strength and improved heat dissipating characteristics

This set of Enginetech P5041(8) Flat Top Coated Skirt Pistons with Floating Pins is the perfect solution for GM Chevrolet 6

while providing excellent responsiveness and mid-range power over stock for across-the-board gains