Manley BBC 632 Rotating Assembly

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BBC 632 4.750 STROKE/4.600/-3cc


When it comes to building horsepower and torque, you need to start at the bottom and work your way up. Manley rotating assemblies are designed for performance enthusiasts wanting to get the most out of their engines. Their assemblies feature 4340 forged steel crankshaft and H-beam connecting rods, either 7/16 in. ARP 8740 cap screws with a 750 hp rating for LS engines/900 hp for big blocks, or optional ARP 2000 cap screws for up to 1,500 hp. They use 2618 Platinum Series forged aluminum pistons, chromoly premium wrist pins, Total Seal piston rings, and Clevite "H" Series narrowed rods and "P" or "H" Series main engine bearings. Building high-horsepower performance engines takes a lot of thought and all the right parts. Start off right with Manley rotating assemblies.


Actual Engine Displacement:10.3L/632

Rear Main Seal Style:2-piece

Bore (in):4.600 in.

Engine Stroke (in):4.750 in.


Harmonic Balancer Included:No

Flexplate Included:No

Flywheel Included:No

Pistons Included:Yes

Piston Rings Included:Yes

Piston Material:Forged aluminum

Piston Style:Flat top, with single valve relief

Piston Head Volume (cc):-3.00cc

Wrist Pin Style:Floating

Piston Ring Facing Material:Plasmamoly

Crankshaft Included:Yes

Crankshaft Material:Forged 4340 steel

Engine Balance:Internal

Connecting Rods Included:Yes

Connecting Rod Length Center to Center (in):6.700 in.

Connecting Rod Material:Forged 4340 steel

Connecting Rod Beam Style:H-beam

Rod Bearings Included:Yes

Rod Bearing Undersize (in):Stock

Rod Bearing Undersize (mm):Stock

Main Bearings Included:Yes

Main Bearing Undersize (in):Stock

Main Bearing Undersize (mm):Stock

Cam Bearings Included:No

Gaskets Included:No

Oil Pump Included:No

Camshaft Included:No

Lifters Included:No

Timing Chain and Gears Included:No

Plastigage Included:No

Assembly Lubricant Included:No

Quantity:Sold as a kit.

Notes:Includes center counterweights. Use of an aftermarket engine block from World, Brodix, Donovan, or Chevy Performance may be required to achieve this cubic inch. Designed for use with tall deck blocks only.

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