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Summit Racing™ Forged Pro Rotating Assemblies SUM-SBC427RB125
Part Number: SUM-SBC427RB125
Summit Racing™ Forged Pro Rotating Assemblies
SBC Forged 427 Balanced Assembly, 4 in. stroke, 350 main, 2 pc. RMS, H-Beam Rod, Forged Piston 11.2:1@ 58cc, 10.5:1@64cc, 10.25:1@67cc, 9.75:1@72cc
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Estimated Ship Date from Texas: Tomorrow Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SUM-SBC427RB125
Part Type:
Product Line:
Summit Racing Part Number:
SUM-SBC427RB125
UPC:
190861321120
Actual Engine Displacement:
7.0L/427
Rear Main Seal Style:
2-piece
Bore (in.):
4.125 in.
Bore (mm):
104.775mm
Engine Stroke (in.):
4.000 in.
Balanced:
Yes
Piston Material:
Forged aluminum
Piston Style:
Dish, with two valve reliefs
Harmonic Balancer Included:
No
Flexplate Included:
No
Flywheel Included:
No
Pistons Included:
Yes
Piston Head Volume (cc):
+18.00cc
Wrist Pin Style:
Floating
Piston Rings Included:
Yes
Piston Ring Facing Material:
Nitride
Crankshaft Included:
Yes
Crankshaft Material:
Forged 4340 steel
Engine Balance:
Internal
Connecting Rods Included:
Yes
Connecting Rod Length Center to Center (in.):
6.000 in.
Connecting Rod Material:
Forged 4340 steel
Connecting Rod Beam Style:
H-beam
Rod Bearings Included:
No
Rod Bearing Undersize (in.):
Stock
Rod Bearing Undersize (mm):
Stock
Main Bearings Included:
No
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:
Designed to fit aftermarket blocks like SUM-150202 with 350 Mains and 2 piece rear main seal. Pan rail clearancing required. Forged Aluminum Piston with 18cc dish to net 11.2:1@ 58cc, 10.5:1@64cc, 10.25:1@67cc, 9.75:1@72cc. Requires SUM-GP412512 rings or other 1.2 mm 1.2 mm 3 mm Ring set. Requires SUM-909HS 350 Main Bearings and SUM-663HS narrowed rod bearings or equivalent depending on your housing bore size.
Summit Racing™ Forged Pro Rotating Assemblies
Summit Racing™ Forged Pro parts offer professional-grade parts at a good value. Proven reliable at big power, these rotating assemblies combine our forged 4340 steel cranks, forged 4340 steel H-beam rods (using ARP rod bolts), and advanced Forged Pro pistons. The assemblies are available balanced and unbalanced. Rod and main bearings, along with piston rings, are sold separately to optimize fitment around YOUR needs and budget. Check out our handy engine building tools, like dial-bore gauges and ring-filers, to make your next engine build a success and one you can be proud of!
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