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- LS1 347 3.622 8.5 3.903 bore
Engine Assembly; Engine Kit; 3.622 in. Stroke; Incl. Rod Journals; 6.125 in. Pro Mod Connecting Rods; -21 cc Dome Pistons; Bearings; Rings; 3.903 Bore; GM LS1 347 cid;
Part TypeEngine Rotating Assembly Kit
BrandLUNATI
Part CategoryPerformance Parts
Crankshaft MaterialForged 4340 steel
Piston And Ring Oversize0.005 in (0.1 mm)
Main Bearing Undersize (Mm)Stock
Wrist Pin StyleFloating
Connecting Rod Beam StyleI-beam
Rod Bearing Undersize (Mm)Stock
Piston Ring Facing MaterialPlasmamoly
Piston StyleDish, with a D-shaped cup
Assembly Lubricant IncludedNo
Piston Head Volume (Cc)25
Gaskets IncludedNo
Rear Main Seal Style1-piece
Main Bearing Undersize (In.)Stock
Crankshaft IncludedYes
Piston Rings IncludedYes
Bore (Mm)98.11
Actual Engine Cid347
Engine Stroke3.622 in (91.999 mm)
Connecting Rod MaterialForged 4340 steel
Pistons IncludedYes
Rod Bearing Undersize (In.)Stock
QuantitySold as a kit
Main Bearings IncludedYes
Engine BalanceInternal
Rod Bearings IncludedYes
Connecting Rods IncludedYes
Oil Pump IncludedNo
Camshaft IncludedNo
Timing Chain And Gears IncludedNo
BalancedYes
Piston MaterialForged aluminum
Cam Bearings IncludedNo
Part FitmentSemi Universal
Plastigage IncludedNo
Lifters IncludedNo
Bore3.902 in (99.111 mm)
Vendor Part NumberEA034-347LUN
Package Qty1
Package TypeEA
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